Physical or chemical processes or apparatus in general (B01)

B01            Physical or chemical processes or apparatus in general(53106)

Fluid cleaning system // 2614287
FIELD: technological processes.SUBSTANCE: invention relates to the cleaning systems and/or desalting the liquid, preferably water. Fluid purification system contains a supply line of the original fluid with mounted supply valve source fluid, connected to the filtration unit, which comprises liquid cleaning means with an inlet for source liquid and outputs for the purified and drain liquid; the fluid mixing device, pressure means support unit, mixing line for the source liquid concentrate, that is formed during the fluid treatment, in a liquid cleaning means, recycling line, the purified fluid line, the fluid drain line and the control unit associated with means of pressure support, pressure change control means, and source liquid supply valve . The filtration unit is adapted to stabilize the pressure in the fluid purification means at periodic fluid flow drainage to drain the fluid velocity, exceeding the performance of pressure support means, disposed on the source liquid line upstream of the device mixing fluid, made in the form of a pressure vessel, which is connected with a line mixing original liquid and concentrate, formed during the filtering process, and simultaneously adjusting of the concentrated fluid volume in the mixing apparatus due to the relationship of the control unit to support the pressure means in the fluid mixing apparatus, performed in a pressure vessel and with means of maintaining the circulation of fluid flow located in the line feeding the starting fluid mixture and concentrate The recirculation line through the connection node is connected to the source liquid supply line, after pressure suuport means and the mixing line of the source liquid and the concentrate, which is connected to the mixing device of the source liquid and the concentrate.EFFECT: invention increases the life of the fluid treatment system, increases efficiency, and reduces the initial fluid energy costs.7 cl, 1 dwg

Fine water filter // 2614284
FIELD: chemistry.SUBSTANCE: fine water filter comprises the housing with a cover and a bottom, the central vertical tube with the upper drainage and distribution system, the two-layered granular loading, the middle drainage and distribution system, the reservoir for supplying compressed air, the fitting for hydraulic discharge, the technological hatches, the plunger, and the pipe for removing filtered water. Wherein the filter is equipped with the additional drainage and distribution system, which is located under the middle drainage and distribution system and on which the single-layered granular loading is placed, the pipe for supplying water for flushing and the pipe for removing water after flushing the single-layered granular loading, wherein the pipe for supplying the water for flushing the two-layered granular loading is arranged lower than the middle drainage and distribution system.EFFECT: increasing the water purification efficiency.2 cl, 1 dwg

Device for dispersing droplets or bubbles in liquid in micro-channels and method for operation thereof // 2614283
FIELD: physics.SUBSTANCE: invention relates to devices for dispersing droplets or bubbles in micro-channels and can be used in processes of dispersing gas in a liquid, one liquid in the other (emulsion), with accompanying reaction, heat- and mass-exchange processes, for example, for conducting heat-exchange, extraction, gas-liquid reactions, reactions in liquid-liquid systems, absorption in chemical, petrochemical, pharmaceutical, food and other industries. In the device for dispersing droplets or bubbles in a liquid in micro-channels, the housing consists of a chamber and a micro-channel. The chamber is located at the point of feeding the medium into the device and has the shape of an oblong ellipsoid, which gradually narrows from the middle section to the ends of the chamber. One of the ends of the chamber is connected to a pipe for feeding a continuous liquid medium. The other end of the chamber is connected to the micro-channel, in which the main process occurs. The pipe for feeding the dispersion liquid or gaseous medium is the form of an extended thin-wall pipe, installed coaxially relative to the pipe for feeding the continuous liquid medium and the chamber. According to the method of using the device, the end of the extended thin-wall pipe is installed between the plane of maximum cross-section of the chamber and the plane of connection of the micro-channel to the chamber.EFFECT: group of inventions, which enables to maintain stable hydrodynamic conditions of the process, achieving the given mixing intensity, which in turn provides high coefficients of heat and mass transfer, wider range of flow rate of the continuous and dispersion phases, which improves versatility of the device and allows use thereof for processes with different parameters.3 cl, 8 dwg, 1 tbl, 2 ex

Duplex filter // 2614282
FIELD: construction.SUBSTANCE: duplex filter comprises the housing with the top and the bottom nozzles for water, the upper drainage and control device, the middle horizontal partition with openings, the lower horizontal partition equipped with the drain caps, the working surface of which faces the upper drainage and control device, the additional horizontal partition installed below the middle horizontal partition and equipped with the drain caps, the working surface of which faces the lower horizontal partition, the additional water nozzle placed on the lateral housing surface between the middle and the additional horizontal partitions, and granular loading. The middle horizontal partition openings are equipped with the drain caps, the working surface of which faces the upper drainage and control device. The granulated loading is placed on the middle and the lower horizontal partitions. The additional water nozzle is made with the possibility to supply water for washing the granular loading placed on the middle horizontal partition and for discharging the spent wash water after washing the granular loading placed on the lower horizontal partition. The additional horizontal partition is set lower than the middle horizontal partition above the granular loading placed on the lower horizontal partition.EFFECT: provision of washing granular loadings independently from each other.2 dwg
Composite oxide, method for producing same and catalyst for exhaust gas purification // 2614276
FIELD: chemistry.SUBSTANCE: invention relates to a composite oxide, which can be used for catalysts, functional ceramics, solid electrolytes for fuel elements, abrasive and similar, in particular, to catalysts for cleaning automobile exhaust gas, as well as to a method of producing composite oxide. Oxide contains 50–98 wt% of cerium oxide and one of rare-earth metal elements, other than cerium and including yttrium, zirconium and aluminium, at a ratio of 85:15 to 100:0 by weight, 1–30 wt% alkali-earth metal oxides and 1–20 wt% silicon oxide.EFFECT: invention provides easy production of composite oxide, having excellent heat resistance, specific surface area of which is retained even when oxide is used in a medium with high temperature, and after calcination at 800 °C for 2 hours which does not deteriorate performance of a cocatalyst.10 cl, 1 tbl, 12 ex
System and method of mixers motion start in sediment // 2614274
FIELD: machine engineering.SUBSTANCE: system and appropriate way of mixers controlled motion start in the sediment is presented. The system has the following: the tank for placing the materials to be processed, the stirring device with mixing blades to stir the materials being processed in the tank, the rinsing device and the device, actuating the mixers. The rinsing device is located in such a way and performed in order to supply the elutriation solution to the resulting sediment. In addition, the control system, which starts the controlled re-entry of mixers into action after rinsing, is provided.EFFECT: invention provides a simple designed and multi-purpose system to start the mixers motion in the sediment.26 cl, 5 dwg

ethod of preparing catalyst and catalyst for oxidising co // 2614147
FIELD: chemistry.SUBSTANCE: invention related to a method of producing a catalyst, involving pre-treatment of an inert block support made from Al-containing foil by calcining at temperature of (850-920)°C in an air current for (12-15) hours and depositing an intermediate coat on its surface at room temperature, said coat being modified aluminium oxide from a suspension containing aluminium hydroxide, aluminium nitrate, cerium nitrate, basalt flake from super-thin basalt fibre with elementary particle diameter of 1-3 mcm and length of up to 1000 mcm and water, heat treatment of the block with the intermediate coat in an air current at (680-700)°C and ageing for 70-90 minutes and depositing one or more catalytically active platinum group metals by water impregnation of their precursors, drying at (100-120)°C and final heat treatment at staged raise of temperature up to (350-400)°C and ageing for 5-6 hours. Wherein the intermediate coat is deposited from a suspension additionally containing cupric nitrate, cobalt nitrate and aluminium metasilicate of less than 10 mcm fraction in the following ratio of its components, wt %: aluminium hydroxide - (17.9-24.8), aluminium nitrate - (1.5-2.8), cerium nitrate - (5.1-9.8), cupric nitrate - (1.1-1.9), cobalt nitrate - (1.0-1.5), basalt scales - (1.2-2.5), aluminium metasilicate - (1.1-1.6), water - up to 100.EFFECT: improved operational characteristics of block CO oxidation catalyst under the conditions of emergency gas purification, simplified catalyst preparation technology.3 cl, 2 tbl, 18 ex
ethod for production of iron-potassium catalyst for dehydrogenation of methylbutenes, catalyst produced by this method and method for methylbutene dehydrogenation using this catalyst // 2614144
FIELD: chemistry.SUBSTANCE: invention refers to a method for production of iron-potassium catalysts for methylbutene dehydrogenation to isoprene. A method for production of iron-potassium catalyst for methybutene dehydrogenation is carried out as follows: catalyst components are mixed in the following ratio, wt.%: magnesium oxide 0.5÷10, potassium compounds 5÷30, calcium carbonate 1÷10, cerium compounds with reference to dioxide 5÷20 and molybdenum compounds with reference to trioxide 0.5-5, iron (3) oxide being the rest, the obtained catalyst mass with moisture content of 10-16% is formed, dried at a temperature of 100÷120°C and ignited at a temperature of 650÷850°C. The method is characterized by the fact that waste catalyst for methybutene dehydrogenation ground and fractioned to 0.2 mm is taken as a component of the catalyst mass; before production of the catalyst mass the composition of waste catalyst is determined preliminary, determination includes assessment of the quantity of lacking components of above mentioned ones which are added to the catalyst mass at mixing stage, then forming is carried out, while taking waste catalyst in the quantity of 5÷70 wt% of total catalyst weight. An iron-potassium catalyst and method for methylbutene dehydrogenation are also claimed.EFFECT: catalyst regeneration in the production cycle for methylbutene dehydrogenation with increased or preserved catalyst activity, selectivity and with lower consumption of initial components.5 cl, 1 tbl, 13 ex

Rotor shaft bearing of low-pressure compressor of turbojet engine (versions), casing of rotor shaft rear bearing, rotor shaft component, polyfunctional external tightening component of rotor shaft, connection component of rotor shaft, casing of bearing of rotor shaft rear bearing // 2614029
FIELD: engines and pumps.SUBSTANCE: group of inventions refers to the area of production and operation of gas turbine engines. The rotor shaft bearing of the low-pressure compressor is located in an intermediate casing of the engine and contains a ball bearing, which is performed thrust and radial, dividing the shaft bearing to stator and rotor parts. The stator part from its internal part is performed conjointly to the external ring of the ball bearing, and on its external perimeter, the stator part is secured in the intermediate casing of the engine and equipped with cover supports of labyrinth seals. The rotor part contains a trunnion of a drum-disk constituent of the rotor shaft detachably connected to a cylinder constituent of the rotor shaft, by means of which the rotor part is rested on the internal ring of the ball bearing, as well as contains the polyfunctional external tightening component in the form of a circular cylindrical nut and a connection component in the form of a hollow screw. The rotor and stator parts of the shaft bearing are in the oil medium common to them both.EFFECT: group of inventions allows adapting the low-pressure compressor as a part of the engine to more sensitive mode of external air current supply, as well as to intense operation in stationary conditions of ground functioning.20 cl, 7 dwg

Composition for moulding hollow fibre membrane // 2614024
FIELD: chemistry.SUBSTANCE: composition for moulding a hollow fibre membrane by co-extrusion of spinning solution and internal precipitant solution is proposed. The spinning solution comprises a polysulfone, two polysulfone solvents and a polysulfone nonsolvent, wherein the second solvent has higher volatility than the first solvent. The spinning solution comprises N-methylpyrrolidone or N,N-dimethylformamide as the first solvent, the spinning solution comprises tetrahydrofuran or dichloromethane as the second solvent. The spinning solution comprises ethyl alcohol or triethylene glycol as the polysulfone nonsolvent. The internal precipitant solution comprises N-methylpyrrolidone or N,N-dimethylformamide in an amount of 40-97 wt % and water.EFFECT: improved selectivity of obtained hollow fibre membrane.3 dwg, 1 tbl

Support of shaft rotor of low-pressure compressor of gas turbine engine (versions), body of shaft support and body of ball-bearing rotor shaft support // 2614020
FIELD: mechanical engineering.SUBSTANCE: low-pressure compressor rotor shaft bearing is located in the intermediate casing of the engine and contains the embodiment of the ball bearing, dividing the support into the stator and rotor parts. The stator portion of the inner side is formed integrally with the outer ring of the ball bearing, and the outer perimeter is secured to the motor housing and the intermediate holder is provided with a labyrinth seal caps. Rotary part includes a pin of the reel disc component of the rotor shaft, which is detachably connected to the cylindrical part of the rotor shaft, through which the rotor part is supported on the inner ring of the ball bearing, and also contains a polyfunctional external coupling element in the form of circular cylindrical nut and the connecting element has a hollow bolt shape. The rotor and stator of the support are in the oil environment, which is usual for them. The support housing is equipped with additional holes for the oil change and removal of oil if necessary.EFFECT: invention allows to adapt the low-pressure compressor, a part of the engine to be more sensitive to external mode proceeds airflow intensive work in fixed ground operation conditions.13 cl, 3 dwg

Rotor shaft bearing of low-pressure compressor of turbojet engine (versions), cylinder constituent of rotor shaft, external tightening component of rotor shaft // 2614018
FIELD: engines and pumps.SUBSTANCE: invention refers to the area aircraft engine construction. The rear bearing of the rotor shaft of the low-pressure compressor of the turbojet engine is performed angularly contact and contains coupled drum-disk and cylinder constituents of the rotor shaft, as well as a ball bearing dividing the bearing to stator and rotor parts. The stator part includes a bearing casing performed conjointly with the ball bearing casing in the form of a conical diaphragm detachably connected with the ball bearing flanges and the intermediate engine casing. An internal strong ring is performed for detachable connection with the bracelet sealing casing and ring carriers of labyrinth sealing lids. The rotor part of the bearing includes conjointly performed bottom part of the conical diaphragm of the drum-ring constituent merging into a trunnion of the rotor shaft of the low-pressure compressor detachably connected with the cylinder constituent of the shaft by a hollow cap crew. A multiridge ring element of the labyrinth sealing, the contact hub of the bracelet sealing, and the oil-control ring, as well as the internal ring of the ball-bearing pressed against a support collar of the cylinder constituent of the shaft by the external tightening component with a ring end beam with the formation of an open collector for gathering and supply of lubricating and cooling fluid to rolling bodies of the ball bearing, to the oil-control ring, and to the contact hub of the bracelet sealing via channels in the external surface of the cylinder constituent of the rotor shaft, are installed on the cylinder constituent of the rotor shaft.EFFECT: invention allows increasing durability of the rotor shaft bearing of the low-pressure compressor, improving operation capabilities of lubricating and cooling system of the rear bearing, and increasing the performance factor of the bearing and operation life of the compressor at whole.20 cl, 2 dwg

Rotor shaft bearing of low-pressure compressor of turbojet engine (versions), sealing spool of rotor shaft bearing, rotor shaft bearing block, contact hub of rotor shaft bracelet sealing, oil-control ring of rotor shaft // 2614017
FIELD: engines and pumps.SUBSTANCE: invention refers to the area of aircraft engine construction. The rear bearing of the rotor shaft of the low-pressure compressor of the turbojet engine is performed angularly contact and contains coupled drum-disk and cylinder constituents of the rotor shaft, as well as a ball bearing dividing the bearing to stator and rotor parts. The stator part includes a bearing casing performed conjointly with the ball bearing casing in the form of a conical diaphragm detachably connected with the ball bearing flanges and the intermediate engine casing. An internal strong ring is performed for detachable connection with the bracelet sealing casing and ring carriers of labyrinth sealing lids. The rotor part of the bearing includes conjointly performed bottom part of the conical diaphragm of the drum-ring constituent merging into a trunnion of the rotor shaft of the low-pressure compressor detachably connected with the cylinder constituent of the shaft by a hollow cap crew. A multiridge ring element of the labyrinth sealing, the contact hub of the bracelet sealing, and the oil-control ring, as well as the internal ring of the ball-bearing pressed against a support collar of the cylinder constituent of the shaft by the external tightening component with a ring end beam with the formation of an open collector for gathering and supply of lubricating and cooling fluid to rolling bodies of the ball bearing, to the oil-control ring, and to the contact hub of the bracelet sealing via channels in the external surface of the cylinder constituent of the rotor shaft, are installed on the cylinder constituent of the rotor shaft. The contact hub of the bracelet sealing is performed with an oil-return channel of a cooling system of the bearing. The contact hub and the oil-control ring form channels for two successive counter-currently directed flows of an exhaust duct for lubricating and cooling fluid.EFFECT: invention allows increasing durability of the rotor shaft bearing of the low-pressure compressor, improving operation capabilities of lubricating and cooling system of the rear bearing, and increasing the performance factor of the bearing and operation life of the compressor at whole.19 cl, 5 dwg
Converter of sulfur compounds and ways of its use // 2614014
FIELD: oil and gas industry.SUBSTANCE: invention relates to a process of neutralization of hydrogen sulphide and low molecular weight mercaptans in crude and prepared oil, gas condensate, hydrocarbon gases, oil products, heavy oil residues and can be used in oil and gas exploration and oil and gas industries. Neutralizer hydrogen sulfide and mercaptans is a water-based composition comprising ethanedial (Glyoxal), glycols or mixtures of glycols, derivatives of amines (aliphatic, alicyclic, aromatic, fatty-aromatic, heterocyclic and polycyclic amines, acyclic, cyclic di- and polyamines) with the amount of nitrogen atoms per molecule from 1 to 8, the following composition (wt %): ethanedial (glyoxal) - 10-40, glycol or mixture of glycols - 0.1-30, amine derivatives - 0.001-10, water - the rest.EFFECT: invention neutralize low molecular weight mercaptans and hydrogen sulfide, providing deep cleansing of hydrocarbon oil and hydrogen sulfide and mercaptans to form a chemically and thermally stable products neutralize a wide temperature range, and the possibility of storage and use at a low temperature catalyst.5 cl, 5 ex

Vortex layer apparatus // 2614013
FIELD: power industry.SUBSTANCE: vortex layer apparatus comprises a manifold which communicates with cooling medium inlet and divides its flow into two streams, a cover with cooling medium inlet and outlet connected to external supply and cooling system, an electromagnetic rotating field inductor positioned between covers, having an axial bore wherein a tube reaction chamber is set with a clearance to channel walls, an inset with ferromagnetic particles is placed in its operating area, apparatus is provided with a supplied power regulation system, and also provided with a cylindrical housing coupled with covers, and inductor is made with shell of non-magnetic material covering its outside and set with clearance relative to the housing. Annular groove and opening on both sides of it are made in the manifold wall facing the inductor, and one of the shell ends is fixed in this groove, the insert is mounted from sections assembled from two identical subsections made of an even number of not less than 4 identical isosceles triangles alternately connected along the perimeter of the subsection with 4 identical equilateral triangles forming a large and a small end openings in the form of polygons. Two subsections are attached to each other by large end openings sides to form a section, and section are attached to each other along the length of its insert by small end openings sides to form a multi-start helical surface on the inner perimeter of the insert directed towards each other with polygonal vortex lines.EFFECT: increased productivity and expansion of vortex layer apparatus technological capabilities.9 dwg

Apparatus of vortex layer // 2614009
FIELD: machine engineering.SUBSTANCE: vortex layer unit of continuous operation contains the manifold, which communicated with the pipe for supplying the cooling medium and separating its flow into two streams, the lids with pipes for supplying and discharging the cooling medium, connected to the external system of supply and cooling, the inductor of the rotating electromagnetic field, positioned between the lids, having the axial channel, in which the reaction chamber in the form of a tube is installed with clearance to the channel walls, in the working area of which the insert with ferromagnetic particles is located. The device is provided with a control system supplied power and provided with a cylindrical casing coupled with lids, and the inductor - shell made of a nonmagnetic material covering its outside and fixed with clearance relative to the housing. The wall of the manifold facing the inductor formed annular groove and opening on both sides of it, and one of the shell ends secured in this recess, the insert is designed as a multi-section screw column containing sections in the form of polyhedra with faces made in the form of equilateral triangles ribs which converge at a single point-top. Each converging point at least, six equilateral triangles to form on the outer and inner surfaces of the inserts directed towards each other polygonal same pitch helical surfaces and broken lines of the same helical pitch.EFFECT: increased productivity and expansion of technological capabilities.12 dwg

ethod for producing alloyed yttrium aluminium garnet // 2613994
FIELD: chemistry.SUBSTANCE: method is performed by dispersing the solid aluminium yttrium oxide derivative in nitrate aqueous solutions of alloying elements salts, and the subsequent treatment with the final product extraction. Wherein the initial yttrium aluminium derivative is represented by the product previously obtained by co-precipitation of aluminium and yttrium from the nitrate aqueous solutions. The resulting precipitation product is afterwards subjected to filtration and washing with deionized water. Thereafter, the extracted product is dispersed by the ultrasonic influence in the solution of the alloying elements selected from the group of alkali and alkaline earth metals and the elements of the 3d group, the resulting pulp is dried with constant stirring, the dried product is ground and calcined at 1200°C to 1600°C.EFFECT: invention allows to obtain yttrium aluminium garnet with the uniform distribution of alloying elements.3 cl, 4 dwg, 3 tbl, 4 ex
ethod of producing precipitated membrane // 2613990
FIELD: chemistry.SUBSTANCE: method of producing the precipitated membrane by passing the slurry through the porous backing to form a selective layer, whrein the bentonite is used as suspension, dispersed in an aqueous solution of diallyldimethylammonium chloride, in the dry matter ratio of (0.5-1.0)-1.5⋅10-6. Selective layer formation on a porous backing with a pore size from 0.1 mcm to 5.0 mcm is performed in recirculation mode at a pressure of 0.2-0.3 MPa until lightening of suspension followed by selective layer consolidation by boosting pressure to 0.3-0.4 MPa for 10-20 minutes.EFFECT: high efficiency of purification.

ethod for production of lanthanum organometallic frame compound of three-dimensional structures based on terephthalic acid // 2613976
FIELD: chemistry.SUBSTANCE: invention relates to the preparation of organometallic lanthanum frame compound of the formula La2(VDS)3(H2O)4 of a three-dimensional structure based on terephthalic acid, which can be used as a catalyst for various processes, including photocatalyst. The method for lanthanum organometallic frame compound preparation comprises terephthalic acid reaction with lanthanum nitrate for 8-9 hours at a temperature of 150-155°C in a solvent represented by dimethylformamide, reaction mixture coolong down to the room temperature, filtration of the resulting solid, successive washing of the solid phase by dimethylformamide and ethanol and drying at a temperature of 140-160°C.EFFECT: simplified synthesis conditions, increased process efficiency and increased yield.1 dwg, 1 tbl, 2 ex
Invert emulsions emulsifier // 2613975
FIELD: chemistry.SUBSTANCE: invert emulsions emulsifier is described which contains an oil-soluble surfactant in the form of ethoxylated alkyl phenol AF9-6, fatty acid at a ratio of 2:1 and a hydrocarbon solvent, wherein the emulsifier comprises oleic acid as a fatty acid and a benzene-containing fraction as a hydrocarbon solvent, at that, the total concentration of the oxyethylated alkylphenol AF9-6 and oleic acid in the emulsifier is 15-39%, the rest is the hydrocarbon solvent.EFFECT: simplified process of emulsifier preparation, increased aggregate stability of emulsions, improved process technology and reduced material costs.3 tbl

Device for preparing firing liquid // 2613957
FIELD: chemistry.SUBSTANCE: dynamic cavitation device comprises sections, each of which has annular rotor and stator grids with openings. The arrangement of the openings in the grids from the center to the outer diameter has a linear saber-shape configuration with the increasing variable diameter. The stator grids with openings located within the tube acting as the device housing, in the central part of which a rotary shaft is mounted, setting into rotation the rotor grids. The stator grids are fixed on the inner tube surface. The rotor and stator grids when assembling are successively superimposed on each other with a sliding clearance, with the formation of cavitation sections separated by a grid with radial holes.EFFECT: increasing the homogenization degree by using the initial components of any degree of purity.4 cl, 5 dwg

System for polymer dilution // 2613952
FIELD: chemistry.SUBSTANCE: this invention refers to a system for polymer dilution including a mixing tank, a pump and a strainer. The mixing tank is designed for reception of polymers, water and the incoming stream to form a polymer solution comprising swollen polymers, and to output the polymer solution. The strainer is designed for polymer solution reception and removal of at least part of the swollen polymer with no substantial deterioration due to the shift, thereby generating a resulting solution, wherein the dissolved polymers are swollen, at least, partially. The pump is designed for reception and return of the obtained solution to the incoming solution stream. For some options, the strainer and the pump work together to maintain the viscosity of the solution substantially within the predetermined range.EFFECT: system of rapid polymer dissolution to a fully activated solution.16 cl, 4 dwg, 2 tbl, 2 ex

Powders granulation method and equipment for its implementation // 2613917
FIELD: chemistry.SUBSTANCE: fine powder is pre-compacted, compressed, comminuted (crushed), the obtained forms (pellets, strips, ribbons, tiles, plates) are rubbed through a sieve and additional balling of the obtained compacted fine powder is performed using uncompacted powder. The method is also implemented by means of equipment for method implementation comprising successively installed feeding pre-compression set screw, mill or roller press with pressing rollers, knife grinder, rubbing sieves, plate or tubular granulator.EFFECT: obtaining of spherical granules retaining treated powder composition, and obtaining of granules with hardness of not more than 100 grams measured as per ASTM D5230 standard.17 cl, 3 dwg

ethod for processing natural hydrocarbon gas // 2613914
FIELD: oil and gas industry.SUBSTANCE: proposed method for processing natural hydrocarbon gas with admixture of water, carbon dioxide, hydrogen sulfide and methanol, containing the stage of low-temperature adsorption drying and purification of natural hydrocarbon gas from methanol and a stage of cryogenic separation of natural hydrocarbon gas to produce helium, nitrogen, methane, ethane fractions and the general fraction of light hydrocarbons. At the stage of low-temperature adsorption drying and purification of natural hydrocarbon gas from methanol, as the stripping agent at the high temperature regeneration of the adsorbent, as the heating agent at the high temperature regeneration of the adsorbent and refrigerant, while the adsorbent cooling upto the adsorption temperature, use the part of methane or ethane fraction.EFFECT: invention allows to prepare natural hydrocarbon gas for the cryogenic separation.13 cl, 5 dwg

Strainers fuel diesel engines // 2613792
FIELD: engines and pumps.SUBSTANCE: proposed prefilter fuel diesel engines, comprising a housing 1, a glass 2, the filter element 3, the fuel supply channel 4, channel discharging purified fuel 5, damper 6, the drain plug 7. The tube 7 an opening 8, in which the rod 9 installed, connected by a hinge 10 with the rod 11 at the other end of which there are shims 12 and valve 13 is cone-shaped, on the basis of which the seal 14 is fixed. At the bottom of the cup 15 2 are threaded drain hole 16 and hole 19, the air outlet.EFFECT: reduced fuel and labor costs of losses in the maintenance of the fuel filter.2 cl, 1 dwg

Pre-filter for biodiesel fuel // 2613790
FIELD: power industry.SUBSTANCE: pre-filter for biodiesel fuel contains a housing with inlet and outlet channels, the inlet cavity, formed by coaxially and equidistantly located outer and inner walls, in which a separator-swirler, a sediment bowl with drain cock and sludge level sensor, filter element and a flows spreader is located. Separator-swirler is located at the outlet of the inlet chamber and it is designed as a disk-shaped part, at which along the outer edge the inclined blades in the tangential direction with L-shaped cross section are made. The L-shaped cross section free shelf of each blade is directed towards the outer wall of the inlet chamber. The free shelf blades tilt is made at the angle from18° to 22° to the transverse plane of the inlet cavity section, the flow spreader is in the form of the truncated cone with the radial ribs, the larger base of which is directed to the filter element, and the ribs are located along the longitudinal section plane from the sediment bowl side, the sediment bowl is made cylindrical at the top and conical at the bottom, at that the sludge level sensor upper point is located in the interface plane of cylindrical and conical parts of the sediment bowl.EFFECT: reliability and efficiency increase of the pre-filter for biodiesel fuel, that is, the separation of solid and liquid foreign particless in a wide range of bio-diesel fuel consumtions.2 dwg

Plant for regeneration of engine oil // 2613558
FIELD: machine engineering.SUBSTANCE: installation for the regeneration of engine oil containing the suction, piping system, including flexible, taps and valves, pumps, electric heater, thermometer, pressure gauge, a centrifuge ultrafiltration unit container with the composition of the additives and capacity of the purified oil, characterized that the container is placed with the purified oil additive dispenser provided with a hollow vibrating plate.EFFECT: improving the quality of the regenerated engine oil due to improved mixing it with additives.1 tbl, 1 dwg
Catalyst for intrastratal hydrocracking of heavy hydrocarbon raw material and its application method // 2613557
FIELD: oil and gas industry.SUBSTANCE: salts obtained by saponification of carboxylic acids contained in vegetable oils are used as organic acid salts and inorganic salts of molybdenum, tungsten, chromium are used as water-soluble inorganic metal salts. The invention also relates to methods (alternatives) of catalyst use which is that the catalyst is dissolved in a solvent and injected into the reservoir layer, wherein in order to intensify the catalyst action it may be applied in combination with heating of the catalyst target object - heavy hydrocarbon raw material.EFFECT: reduced viscosity and increased flow of oil-in-place, increased profitability of the process of oil production and handling, extended list of purpose catalysts.15 cl, 1 tbl, 6 ex

Device for oil desalting and dehydration // 2613556
FIELD: oil and gas industry.SUBSTANCE: device for oil desalting and dehydration comprises a tube with holes, a manifold with a reagent (water) feeding pipe branch, oil inlet chamber which is coaxial with the pipe and comprises cylindrical middle and inner tube flow splitters of treated oil which are fitted with nozzles and placed concentrically to the housing at calculated distances, which form the outer, middle and inner flows, wherein the inner splitter is made with outer and inner walls, between which there is an annular cavity for reagent (water), and before the flow splitters there are water collector rings for pre-turbulation of the treated oil at adjusted distance.EFFECT: increased efficiency of oil desalting and dehydration and plant capacity due to intensification of mixing the treated oil with a reagent, turbulation and separation of all the oil flow volume into several concentric ones with the specified flow thicknesses.3 cl, 4 dwg
ethod of making copper coatings with developed surface // 2613553
FIELD: metallurgy.SUBSTANCE: electrodeposition process is carried out using mechanical activation of the cathode from sulfuric acid electrolyte with the addition of activator particles inert to the electrolyte in the form of powder with the fraction of 10-30 microns at the concentration of 20-50 g/l, the electrolyte is carefully mixed with the activator mechanically or by air prior to the electrodeposition, then the mixing is stopped and the process of copper electrocrystallisation or electrodeposition is started. The process is performed with intermittent mixing of the activator with the electrolyte in a potentiostatic mode at 50-200 mV overvoltage for 10-20 minutes.EFFECT: invention provides the ability to create copper defect crystals, coatings and layers thereof having a developed surface.6 cl, 8 ex, 3 dwg
Polycrystalline synthetic jewelry material (versions) and method of its production // 2613520
FIELD: chemistry.SUBSTANCE: creating a polycrystalline jewelry material from coloured transparent or translucent oxide ceramics with dopants is proposed. The material consists of oxidic compounds which are represented by yttrium-aluminium garnet or magnesium aluminium spinel, for dying which ions of transition and rare earth metals: zinc, iron, vanadium, chromium, manganese, nickel, cobalt, titanium, neodymium, europium, terbium, ytterbium, holmium, erbium, thulium - are used. The method of manufacturing transparent or translucent ceramic comprises the stages of obtaining a powder mixture and annealing the components, hot uniaxial/cold isostatic pressing, hot isostatic pressing and heat treatment.EFFECT: wider colour range of samples and possibility of obtaining colour effects caused by the activator concentration variable as per the pattern or the crystalline phases are achieved, the cost of goods is much less in comparison with the use of single-crystal material.5 cl, 4 tbl, 2 ex
ethod for arsenic sorbent production // 2613519
FIELD: pharmacy.SUBSTANCE: magnesium hydroxide is mixed with hydrated iron chloride in a molar ratio of magnesium to iron of 1.5 to 6.0. The mixture is stirred for interaction of iron chloride and magnesium hydroxide. The sorbent is washed and dried.EFFECT: production of sorbent, which allows to reduce the arsenic concentration.3 cl, 1 tbl
ethod for paraffin condensate deethanization // 2613518
FIELD: gas industry.SUBSTANCE: invention relates to gas industry and can be used for centralized decanonization (partial stabilization) of unstable paraffin condensate in distillation columns supplied from the fields of gas condensate deposits, operating without the use of upper condensation irrigation. Method for deethanization of unstable paraffin condensate, when unstable paraffin condensate is heated to supply deethanization column and deethanize using unheated unstable condensate with low content of paraffins for irrigation of deethanization column, consists in the fact, that deethanization column is equipped with valve plates, providing constant material mass loading within the range of loads at the flow of steam and liquid phases from 100 to 50 % of maximum and stable quality of deethanization products – residual content of hydrocarbons C1-C2 in deethanized condensate is not more than 0.8 wt%, residual content of liquid hydrocarbons C5+ in deethanization gas is not more than 3 wt%; provided that adjustable addition of flow portion used for irrigating deethanization column of unstable condensate with low content of paraffins into the feed flow of deethanization column, providing maintenance of loads on the flow of steam and liquid phases in the working range from 100 to 50 % of maximum, given that the content of evaporative components C1-C4 in unstable paraffin condensate is less than 15 wt%, and maintaining rated content of paraffins in deethanized condensate at a level no higher than 4 wt%.EFFECT: technical result consists in ensuring efficiency of unstable paraffin condensate deethanization in distillation columns without upper condensation irrigation not less than 1,3 million tons/year, as well as providing flexibility of process – maintaining specified values at constant level when deethanizing raw materials of different composition – unstable paraffin condensate, unstable condensate with low content of paraffins and their mixtures in different ratios.1 cl, 1 dwg, 1 ex

Vortical layer unit of continuous operation // 2613517
FIELD: machine engineering.SUBSTANCE: vortical layer unit of continuous operation contains the manifold, which communicated with the pipe for supplying the cooling medium and separating its flow into two streams, the lids with pipes for supplying and discharging the cooling medium, connected to the external system of supply and cooling, the inductor of the rotating electromagnetic field, positioned between the lids, having the axial channel, in which the reaction chamber in the form of a tube is installed with clearance to the channel walls, in the working area of which the insert with ferromagnetic particles is located. The device is provided with a power supply regulation system, and also provided with a cylindrical casing, coupled with lids and inductor shell, made of non-magnetic material, covering it from the outside and fixed with clearance relatively to the casing, in the manifold facing the inductor, the ring groove and holes from both sides of it is formed, and one of the shell end faces is fixed in this groove, the insert is made of the even number, not less than four, constant width rectangular strips, twisted in the longitudinal direction relatively to its axis 01-01 and curved along a helical line on the cylindrical mandrel in the lateral direction, the strips are bent alternately in the opposite directions along the weakened cross section areas in the form of cuts, made from the different opposite side of strips at the angle of 60° to each other and to the longitudinal edges of the strips with different combinations of the wall tilt angles in the form of weakened section areas bevels as cuts, and then the wall edges in the form of weakened section areas bevels as cuts, are connected to each other, forming along the strip length the equilateral triangles, located alternately to the opposite directions, the strips are joined to one another along the longitudinal edges, forming on the inner perimeter of four or more curved broken helical surfaces and curved broken helical grooves of the mainstream, as well as four or more curved broken helical surfaces and curved broken helical grooves of the oposite direction.EFFECT: productivity increase and process performances expansion of the vortical layer unit of continuous operation.10 dwg

ixer for viscous materials // 2613508
FIELD: machine engineering.SUBSTANCE: mixer for viscous materials comprises a cylindrical stationary housing in the form of a cup placed inside the mixing device with the shaft and the drive moving the cover. The mixing device is designed as a piston with radial openings fixed sliding fit relative to the inner wall of the cylindrical body. The shaft is capable of reciprocating movement, is rigidly attached to the piston and is centered sleeve bearing mounted on the cover. Movably located on the piston cap radial holes, which is formed as an additional piston on the additional shaft disposed on the surface of an additional piston with radial holes to overlap cylinder. At the bottom of the cup, the discharge hole is located. The auxiliary shaft has a ball lock with the possibility of blocking holes through the shaft of the stirring device in the mixer discharge where the radial holes are further covered with cylinder piston. The ball is the spring-loaded to the shafts with the elastic element of the rubber washers.EFFECT: higher efficiency of mixer operation.2 cl, 1 dwg

Treatment method of liquid environments with short low frequency electromagnetic pulses // 2613504
FIELD: electricity.SUBSTANCE: method of processing liquids carried by electromagnetic Iimpulses in the frequency range of 5 to 50 Hz and a pulse duration in the range from 1 to 8 ms. Use electromagnetic system, imposed on the pipeline of non-magnetic materials. Electromagnetic system contains pulses generator and connected with it electromagnetic inductor. Electromagnetic inductor is operated as an open magnetic circuit with a magnetizing coil located on it so that the axis of the pipeline is located between poles of electromagnetic inductor.EFFECT: invention allows to provide an economical and efficient way of electromagnetic treatment, leading to a change in the physical properties of liquid media.8 cl, 4 dwg

Composition mixer // 2613502
FIELD: machine engineering.SUBSTANCE: mixer contains cylindrical fixed casing in form of the sleeve with installed inside mixing device with shaft and cover, at that the mixing device is made in form of the piston with radial holes, installed with sliding fit relatively to the internal sides of the cylindrical casing, and the shaft is made with possibility of reciprocating movement, it is rigidly secured to the piston and is aligned with journal bearing installed in the cover, above the piston the radial holes plug is installed with possibility of movement, it is made in form of the additional piston on the additional shaft with cylinders with cone tips installed with possibility to close the radial holes, and on the sleeve bottom an unloading hole is located. And according to the device, the seals are made as a solid rubber gasket, covering the whole bottom surface of additional piston, and is bonded to it, and the axes of outer radial holes are made with an angle to the axes of inner radial holes, which are facing the bottom, the center of piston and they are intersected.EFFECT: higher efficiency of mixer operation.1 dwg

ethod for lithium chloride regeneration in chemical industry // 2613438
FIELD: chemistry.SUBSTANCE: method for lithium chloride regeneration in chemical industry comprises plasticization and precipitation bath solution neutralisation with an aqueous solution of lithium hydroxide. Multicomponent starting mixtures contain 0 to 60% of dimethylacetamide (DMAA), 0 to 70% isobutyl alcohol (IBA), lithium chloride, hydrogen chloride, water and impurities - balance to 100%. These mixtures were separated to lithium chloride containing ones and not containing ones. The mixtures which do not contain lithium chloride are separated to mixtures containing DMAA and mixtures not containing DMAA. The liquid stream consisting of IBA and water is removed from the system. At that, the plasticization bath solution is rectified in two columns and the distillation residue mixture of the second column and the precipitation bath is evaporated by vacuum. Vacuum rectification of vacuum evaporator distillation residue, vacuum rectification of vacuum evaporator and the third column stripping product is performed to obtain dimethylacetamide (DMAA). The concentrated lithium chloride solution is crystallized in dimethylacetamide. The flow of concentrated lithium chloride is sequentially fed to vacuum rectification, crystallization and centrifugation. Lithium chloride complex salt - dimethylacetamide - is separated from the stock solution. Purified lithium chloride is obtained from the stock solution by repeated dilution with water and vacuum evaporation.EFFECT: invention allows to obtain lithium chloride with a purity up to 95 percent and a high yield.1 dwg

Self-regenerative integrated device for synergetic oxidation of low concentration gas and ventilation gas in coal mine // 2613378
FIELD: power engineering.SUBSTANCE: invention relates to energy saving in safety techniques for coal mines. Proposed self-regenerative integrated device for synergetic oxidation of a low concentration gas and a ventilation gas in a coal mine. Integrated device comprises metal shell (5) and oxidation layer (13) from ceramics in the form of cells, which is located inside metal shell (5) and is divided into regenerative section (40) and oxidation section (41) by means of heat exchange chamber (14). First cavity between regenerative section (40) and the inner wall of metal shell (5) is divided into first inlet chamber (6) and outlet chamber (8) by means of inlet separating partition (7), the second cavity between oxidation section (41) and the inner wall of metal shell (5) is divided into second inlet chamber (22) and mixing chamber (20) by means of separating partition (21) to average the gas and multiple gas-spraying nozzles (28) arranged on separating partition (21) to average the gas. Internal heat exchanger (35) is located inside chamber (14) of heat exchange, and inlet (16) of the heat exchanger and outlet (15) of the heat exchanger of internal heat exchanger (35) are connected to drum (18) of the boiler, respectively. First inlet chamber (6) is connected to inlet (1) of the ventilation gas via control valve (38) of proportional action, second inlet chamber (22) is connected to inlet (31) for extraction of the low concentration gas through mixer (33) of proportional action, and control valve (38) of proportional action is connected to mixer (33) of proportional action by means of connection pipeline (36). Two ends of pipe (9) for preliminary heating of the inlet gas on oxidation layer (13) from ceramics in the form of cells are connected, respectively, with first inlet chamber (6) and mixing chamber (20).EFFECT: technical result is providing high energy efficiency and reducing emissions of gas mixtures into the atmosphere.5 cl, 4 dwg

ethod of producing agent with sedative properties, anticonvulsant and neuromodulating anti-alcohol activity // 2613312
FIELD: medicine.SUBSTANCE: invention relates to method of producing agent with sedative properties, anticonvulsant and neuromodulating anti-alcohol activity. Above method involves extraction of vegetal raw material – cow wheat with 50 % ethanol, by repercolation with equal load of raw material, with complete cycle of in batch of four unequally batched percolators in ratio of raw material:extractant – 1:2 at infusing at each stage of extraction for six hours, then combined extraction are settled, filtered, decanted, evaporated to dry residue in rotary evaporator.EFFECT: invention provides preparation of agent with evident sedative properties, anticonvulsant and neuromodulating anti-alcohol activity.1 cl, 5 dwg, 8 tbl, 1 ex
ethod for producing melanin from sunflower husks // 2613294
FIELD: pharmacy.SUBSTANCE: method for producing melanin from sunflower husks, comprising water washing of unmilled sunflower husks, drying, extraction with sodium hydroxide solution, filtering; in this case and the prepared sunflower husk is milled, the extraction is carried out stepwise, the extracts are combined and added with 25% hydrochloric acid solution with stirring, the resulting melanin flocculent precipitate is separated by filtration and dried in the air under certain conditions.EFFECT: method allows to use of raw materials more efficiently, to reduce energy consumption and to improve the product consumer appeal, to increase the antioxidant activity of melanin.1 tbl, 9 ex

Immunodiagnostic testing chart with index indicators // 2613195
FIELD: biology.SUBSTANCE: invention relates to immunodiagnostics and can be used for immunodiagnostic testing of biological sample. Immunodiagnostic testing chart includes flat substrate and multiple transparent columns contained thereon with inert test material, made with possibility to generate agglutination reaction, while adding biological sample and reagent. Each column includes indicator marks, spaced from each other create a visible zones of degree of agglutination reaction on basis of position of formed agglutinates.EFFECT: invention provides higher accuracy and objectivity of evaluation of test results.9 cl, 3 dwg

ethod of purifying contaminated raw material for separating production // 2613157
FIELD: treatment plants.SUBSTANCE: invention relates to methods of purifying raw material contaminated with harmful isotopes for further usage in production of reduced uranium for nuclear fuel. Method of purifying contaminated raw material for separating production from harmful isotopes consists in reducing concentration of isotopes 232U, 234U, 236U by processing uranium hexafluoride of contaminated raw material in double cascade of gas centrifuges. Uranium hexafluoride of contaminated raw material is processed in double cascade of gas centrifuges intended for producing low-enriched hexafluoride 235U from pure uranium hexafluoride supplied for the main feed of the first cascade, contaminated raw material is supplied for additional feed of the first cascade. Purified raw material is taken from the first or second cascade.EFFECT: invention enables to obtain high-quality raw material with allowable content of limiting harmful isotopes.6 cl, 5 dwg, 8 tbl, 4 ex
echanism with simplified handling to control device intended for two closed spaces leak-tight connection // 2613075
FIELD: packaging industry.SUBSTANCE: mechanism to control casing and container leak-tight connection device, wherein casing contains door (10) and container contains door (14), casing door (10) includes control mechanism, which comprises male element interacting with container door (14) recess, and this male element rotates around longitudinal axis (X) and progressively displaces around said axis and can be arranged in door (14) recess, thus providing combined locking of two doors (10, 14) and container door (14) unlocking. Said mechanism is used during implementation of first and second closed spaces leak-tight connection method.EFFECT: inventions enable easy leak-tight connection of two closed spaces.19 cl, 18 dwg
White pigment // 2613055
FIELD: chemistry.SUBSTANCE: invention relates to chemical industry and can be used for making pigments for varnishes and paints. Pigment consists of shell and core. Shell is made of titanium dioxide. Core is made of a mixture of kaolin and aluminium hydroxide with total weight content of aluminium silicates aluminium hydroxide not less than 98 %. Weight ratio of aluminium hydroxide to weight of core varies from 10 to 25 pts.wt. Weight ratio of shell material to core material is 0.66–2.33 at fractional composition of core material from 2 to 5 mcm and shell material from 0.2 to 0.5 mcm.EFFECT: invention improves quality of pigment, increases resistance to destruction in operating conditions at acidic precipitation, storage and transportation.1 cl, 8 ex
White pigment // 2613052
FIELD: chemistry.SUBSTANCE: invention relates to chemical industry and can be used for making pigments for varnishes and paints. Pigment contains shell and core. Shell is made of titanium dioxide. Core is made from kaolin with weight content of aluminium silicates of not less than 97 %. Weight ratio of shell material to core material is 0.66–4.0, fractional composition of core material from 2 to 5 mcm, and shell material from 0.2 to 0.5 mcm.EFFECT: invention improves quality of pigment, increases resistance to destruction in operating conditions, storage and transportation.1 cl, 9 ex

Vibration mixer // 2613045
FIELD: machine building.SUBSTANCE: invention relates to continuous-action devices for bulky compositions preparation. Vibration mixer comprises working member fixed on vertical tubular column, made in form of perforated helical chute, at bottom ending with continuous turn, ingredients feed branch pipe, located above working element, resilient element fixed on bearing structure, and vibrator, characterized by fact, that finished composition discharge branch pipe is installed at continuous turn end. Ingredients are coming to working element upper turn via feed branch pipe. Under effect of vibrations generated by vibrator, bulky material particles, moving down working element, are mixed. Finished product is removed from device from below via discharge branch pipe installed at continuous turn end.EFFECT: technical result of invention is higher stability of vibration mixer operation and composition quality.1 cl, 1 dwg
ixed metal-oxide catalysts // 2612976
FIELD: technological processes; chemistry.SUBSTANCE: catalyst composition for propylene ammoxidation containing system of metal oxides, having formula: Mo12BiaFebAcDdEeFfGgCehOx, wherein A represents, at least, one element, selected from group consisting of sodium, potassium, cesium and rubidium; D represents, at least, one element selected from group consisting of nickel, cobalt, manganese, zinc, magnesium, calcium, strontium, cadmium and barium; E is, at least, one element, selected from group, consisting of chromium, tungsten, boron, aluminium, gallium, indium, phosphorus, arsenic, antimony, vanadium and tellurium; F represents, at least, one element selected from group consisting of rare-earth element, titanium, zirconium, hafnium, niobium, tantalum, aluminium, gallium, indium, thallium, silicon, germanium and lead; G represents, at least, one element selected from group consisting of silver, gold, ruthenium, rhodium, palladium, osmium, iridium, platinum and mercury; a ranges from 0.05 to 7; b ranges from 0.1 to 7; c ranges from 0.01 to 5; d ranges from 0.1 to 12; e ranges from 0.01 to 0.1; f ranges from 0 to 5; g ranges from 0 to 0.2; h ranges from 0.01 to 5; and x is number of oxygen atoms required to satisfy requirements of other components valence. Catalyst composition contains, at least, approximately 15 % of m-phase plus t-phase by weight and is characterized by of m-phase to m-phase plus t-phase weight ratio of 0.45 or more, where amounts of m-phase and t-phase are determined by means of x-ray diffraction and model according to Rietveld modified analysis, wherein Rietveld modified analysis comprises four main phases. Also disclosed is acrylonitrile producing method, involving contact of propylene, ammonia and oxygen in vapor phase in presence of metal oxide catalyst.EFFECT: described are catalyst compositions, which are effective to provide for increased acrylonitrile production without considerable reduction in production of hydrogen cyanide and/or acetonitrile and providing total increase in acrylonitrile, hydrogen cyanide and acetonitrile production.12 cl, 1 dwg, 2 ex
ethod of producing 1,3-butadiene // 2612975
FIELD: chemistry.SUBSTANCE: invention relates to a method of producing 1,3-butadiene. Method includes: i) providing a catalyst on a support, containing lanthanum, zirconium and zinc, wherein support contains silicon dioxide; and ii) bringing into contact starting materials, containing ethanol, with catalyst on support to obtain raw product, containing 1,3-butadiene. Invention also relates to use of lanthanum in a catalyst for producing 1,3-butadiene.EFFECT: present method provides favourable conversion and selectivity with respect to 1,3-butadiene.20 cl, 1 tbl, 28 ex
Novel catalyst to increase propylene yields from fluid catalytic cracking unit // 2612973
FIELD: chemistry.SUBSTANCE: invention relates to a catalyst composition for hydrocarbon conversion. Catalyst contains in terms of total weight of catalyst in wt%: 25–30 zeolite Y, 15–20 zeolite ZSM-5, 50–60 beta zeolite. Described also is a method of producing propylene, involving cracking hydrocarbon raw material.EFFECT: higher yield of propylene during cracking with fluidised catalyst.14 cl, 1 tbl, 2 ex
 
2551362.
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