Comprising aluminium oxide or hydroxide and comprising bauxite (B01J20/08)

Nanotubular materials crystallising in system of k2o-tio2-x-h2o (x=nio, mgo, al2o3, cr2o3, co2o3, fe2o3) and method of their synthesis // 2640766
FIELD: chemistry.SUBSTANCE: nanotubular materials crystallising in the system of K2O-TiO2-X-H2O (X=NiO, MgO, Al2O3, Cr2O3, CO2O3, Fe2O3) are characterized by the fact that in their composition up to 10% of ions Ti4+ is replaced by doping two- or trivalent metal. The method of synthesis of nanotubular materials is characterized by the fact that the synthesis of the samples is carried out by hydrothermal treatment of a pre-prepared mixture of hydroxide in KOH solution, to produce the initial mixtures of hydroxides, a solution of titanyl chloride synthesised by reaction of TiCl4 with chilled distilled water, is mixed with aqueous solutions of salts of finished elements in a predetermined ratio, and then the precipitation of hydroxides is produced by adding NH4OH to the aqueous solution mixture at pH=9-9.5 followed by washing with distilled water, drying at 70-90°C and mechanical crushing, then the crushed precipitate is mixed with 10 M KOH solution and subjected to a hydrothermal treatment at 170-180°C for, at least, 24 hours, after which the resulting product is washed with distilled water.EFFECT: invention makes it possible to synthesise potassium-titanate nanotubes with an average outer diameter of 5 to 12 nm.2 cl, 5 dwg, 2 ex
Porous sorbent with normothymic properties based on aluminium oxide // 2620118
FIELD: chemistry.SUBSTANCE: alumina based sorbent containing polymethylsiloxane in an amount of 0.2-0.8% in the form of an aqueous emulsion with particle sizes of 60-400 nm and lithium citrate with a lithium content of 0.2-0.8% is proposed.EFFECT: sorbent possesses good detoxifying properties and normotimic activity.2 cl, 2 dwg, 1 tbl, 3 ex

Granulated sorbent producing method // 2578691
FIELD: chemistry.SUBSTANCE: invention relates to preparation of sorbents used for polishing process and waste gases. Production process includes mixing of aluminium hydroxide, caustic limestone and basic zinc carbonate at a molar ratio of Al2O3:CaO:ZnO = 1: (0.5÷2):(0.5÷2) using ultrasonic device, plastification of mixture with water, molding and drying of pellets at a temperature of 110÷120 °C.EFFECT: invention allows to increase degree of absorption of fluorine and chlorine from gases produced by sorbent.1 cl, 1 tbl, 5 ex

Alumina-based porous sorbent with chronotropic properties // 2577580
FIELD: medicine.SUBSTANCE: invention relates to adsorbents for medical purposes. Described is a porous sorbent with chronotropic properties based on silicon-containing alumina. Chronotropic property is achieved by immobilising pineal hormone melatonin in an amount of up to 2 mg/g on surface of silicon-containing alumina. Immobilised hormone is released from surface of sorbent in contact with biological tissue. Invention provides a highly effective sorbent chronotropic properties in experimental studies in mice with genetically determined development of type 2 diabetes and obesity.EFFECT: sorbent exhibits pronounced lymphotropic and hepatoprotective properties.2 cl, 2 dwg, 1 tbl, 4 ex

Photocatalytic sorbing fabric material // 2562485
FIELD: physics.SUBSTANCE: material is a structurally organised system which consists of a fabric base coated with an intermediate silicon dioxide layer and an outer layer of photocatalytically active nanocrystalline titanium dioxide of an anatase modification.EFFECT: efficient adsorption cleaning of gaseous and aqueous media while enabling subsequent self-cleaning by breaking down accumulated contaminants under the effect of ultraviolet and visible radiation to safe components.2 cl, 2 dwg, 3 tbl, 10 ex

Sorbent for after-purification of biologically purified sewage waters from ions of ammonium and phosphates // 2560436
FIELD: chemistry.SUBSTANCE: sorbent contains sediments, obtained in the process of reagent processing of natural waters with aluminium coagulants, 20-40 wt % and montmorillonite clay 60-80 wt %.EFFECT: possibility of effective after-purification of sewage waters from ions of ammonium and phosphates with application of sorbent from available natural and technogenic raw material.1 tbl, 5 ex
Adsorbent with lower reactivity and higher capacity for oxygen-containing compounds for removing oxygen-containing compounds from olefin streams // 2560360
FIELD: chemistry.SUBSTANCE: group of inventions relates to adsorbents for purifying hydrocarbons. Disclosed is an adsorbent for purifying hydrocarbon streams, having an aluminium oxide component, a zeolite component with entrance window size of 5-10 E and an additive metal component. The additive metal component is present in amount of 0.0075-0.0135 mol metal in oxide form per 100 g adsorbent. Aluminium oxide is present in amount of 40-90%. The additive metal component is an alkali metal. The adsorbent preferably contains sodium-saturated zeolite Y and aluminium oxide. A method of producing the adsorbent is disclosed.EFFECT: adsorbent provides high efficiency when removing CO2, H2S and methanol from an ethylene stream.17 cl, 3 tbl, 5 ex

Composite material c/al2o3 and method of its obtaining // 2552634
FIELD: chemistry.SUBSTANCE: uniform, continuous and dense layer of pyrolytic carbon has width of carbon coating, close to monolayer coating, equal 0.4-0.5 nm, density of precipitated carbon coating, equal ρC = 2.0-2.1 g/cm3, specific surface SBET = 90-200 m2/g, cumulative volume of pores ΣVpore≤0.4 cm3/g, average size of pores DBET≤10 nm, most probable size of pores DBJH = 5-7 nm with absence of micro pores. Invention also relates to method of production of such mesoporous composite material.EFFECT: claimed mesoporous composite material has high-quality thin carbon coating, which totally and uniformly covers external surface and walls of pores of said material.4 cl, 3 dwg, 3 tbl, 10 ex

ethod of obtaining means for water purification, means and method of water purification // 2552548
FIELD: chemistry.SUBSTANCE: invention relates to field of water purification. Method includes interaction of metal aluminium with hydrochloric acid solution, further introduction of additive into mixture and mixture exposure of with obtaining polymerisation product. Activated carbon with particle size 100-10000 nm is introduced into mixture as additive in amount 9-12 kg/ton. Polymerisation product contains polyaluminiumhydrochloride with polymerisation degree about 70% and index of basicity 5/6. Method of water purification with obtained means is realised in apparatus, which contains mixer, flocculator and flotator.EFFECT: claimed is method of obtaining means for water purification based on chloroaluminium-containing coagulant.3 cl, 1 dwg

Photocatalytic composite material // 2552452
FIELD: chemistry.SUBSTANCE: material comprises a textile cellulose-containing base, a photocatalytic layer which is a complex of silicon dioxide, modified with aluminate ions, and titanium dioxide with an anatase modification, and an adsorbent layer of aluminium oxide with a boehmite structure, which is located between the photocatalytic layer and the textile base.EFFECT: invention provides high adsorption capacity for polar and nonpolar chemical compounds and good photocatalytic and antibacterial properties of the material.4 cl, 2 dwg, 4 tbl

ethod of producing modified sorbent for purifying oil-containing and waste water // 2548440
FIELD: chemistry.SUBSTANCE: method includes coprecipitation at pH 8.9 of magnesium and aluminium hydroxides taken in molar ratio of 4:1, moulding the precipitate and granulating by drying. Successive modification with polyhexamethylene guanidine and 1,8-dioxynaphthalene-3,6-disulphonic acid is then carried out.EFFECT: increased selectivity of the sorbent.1 tbl, 1 ex
ethod for removal of organic sulphur compounds from liquid hydrocarbon fuel // 2547731
FIELD: oil-and-gas industry.SUBSTANCE: invention relates to the method for removal of organic sulphur compounds from liquid hydrocarbon fuel by passing through still absorber, which is γ- aluminium hydroxide modified by zinc oxide amounting wt % 0.1 - 10.0, or its combination with other adsorbers: γ- aluminium oxide and/or alumino-cobalt-molybdenum or alumino-nickel-molybdenum hydrotreating catalyst and/or synthetic zeolite of NaX or ZSM type and/or zinc and copper oxides. Fuel is passed through adsorbent at the temperature selected in the range from 0 to 100°C, atmospheric pressure with a relative volume flow rate falling within the range of values 0.1-10 hour -1.EFFECT: removal of sulphur organic compounds formed by liquid hydrocarbon fuel using available adsorbents in soft conditions without using molecular hydrogen.3 cl, 8 tbl, 11 ex

Adsorbent for removal of organosulphur compounds from liquid hydrocarbon fuel and method for obtaining thereof // 2547480
FIELD: chemistry.SUBSTANCE: claimed is an adsorbent for the removing of organosulphur compounds from a liquid hydrocarbon fuel based on aluminium γ-oxide, modified by zinc oxide in a quantity of 0.1-10 wt %. The adsorbent is obtained by soaking γ-oxide of aluminium with a water solution of a substance, which at decomposition gives zinc oxide as the product. Solutions of zinc acetate or zinc nitrate are applied as the claimed substance. After soaking, drying and annealing are carried out.EFFECT: obtaining effective adsorbent which is characterised by the low content of the modifying additive and simple technology of obtaining.4 cl, 2 tbl, 9 ex

Sorbent for purification of sewages from heavy metal ions // 2537004
FIELD: chemistry.SUBSTANCE: claimed is sorbent, which consists of two components: thermally processed at 250-300°C sunflower husk sunflower and aluminium oxidecontaining waste product of ceramic production.EFFECT: invention ensures effective purification of sewages from heavy metal ions.2 tbl
ethod of producing carbon-mineral sorbent // 2529535
FIELD: chemistry.SUBSTANCE: method includes depositing carbon-containing compounds on an aluminium oxide surface with a meso- or macroporous structure, drying and pyrolysis in a current of an inert gas to form a layer of pyrolytic carbon on the aluminium oxide surface. The carbon-containing compounds used are citric acid, saccharose and lactose.EFFECT: simple technique while maintaining the quality of the sorbent.4 cl, 1 tbl, 5 ex
Adsorbent for purification of gases from chlorine and hydrogen chloride and method of its preparation // 2527091
FIELD: chemistry.SUBSTANCE: invention relates to adsorbent for purification of gases from chlorine and hydrogen chloride. Adsorbent contains in wt %: zinc oxide - 26.0-75.0; magnesium oxide - 1.5-6.0; aluminium oxide - 21-70. Method of obtaining adsorbent includes mixing initial components in medium of ammonia-carbonate solution, evaporation, drying and calcinations in non-isothermal mode with rise of temperature to 400-600°C and exposure at final temperature for 2-4 hours.EFFECT: obtaining adsorbent with increased chlorine adsorption capacity and strength.4 cl, 1 tbl, 8 ex
ethod of purifying water from silicates // 2526986
FIELD: chemistry.SUBSTANCE: in order to realise method waters to be purified are filtered through layer of activated aluminium oxide, preliminarily modified by 0.5% sodium aluminate solution. Regeneration of spent activated sodium aluminate solution is realised by 0.1-0.5% sodium aluminate solution.EFFECT: increased sorption capacity of charge by absorbed silicon, increased duration of filter-cycle between charge regenerations and creation of wasteless technology of water desilicinisation with re-application of spent regeneration solution.2 tbl, 1 ex

ethod for sorption extraction of molybdenum // 2525127
FIELD: chemistry.SUBSTANCE: invention relates to selective extraction of heavy metal ions, particularly molybdenum (VI) ions, from solutions. Extraction is carried out using a sorbent in form of powdered aluminium oxide by providing contact of the sorbent with a solution at pH 1-7. The sorbent used is then recovered via contact thereof with aqueous potassium sulphate solution at pH 4-6. After recovery, the sorbent separated from the phosphate solution is washed and dried. The recovered sorbent is ready for reuse.EFFECT: high efficiency of extracting molybdenum ions from a solution.3 dwg, 3 ex
Hydrogen chloride absorber // 2519366
FIELD: chemistry.SUBSTANCE: invention relates to purification of gases from halogen-containing compounds. Claimed is hydrogen chloride absorber, containing 40.0-80.0% if zinc oxide, 2.0-10.0% of calcium oxide and aluminium oxide. Reaction mixture, containing zinc oxide, thermally activated aluminium hydroxide, aluminium hydroxide of pseudoboehmite structure and calcium carbonate is the source of zinc, calcium and aluminium oxides.EFFECT: prevention of softening and destruction of absorber in the process of sorption over a long period of time.3 cl, 2 tbl
ethod of obtaining granular sorbent // 2503619
FIELD: chemistry.SUBSTANCE: invention relates to field of chemistry. To obtain granular sorbent 70÷90 wt % of quick lime and 10÷30 wt % of aluminium hydroxide are mixed. Mixture is subjected to successive mechanical activation in grinders with shock-shear character of loading during 0.1÷12 h, water plastification, formation of granules and drying at temperature 110÷120°C for not less than 4 h.EFFECT: invention makes it possible to simplify the process, reduce product cost and improve sorbent activity.1 tbl, 3 ex

Desulfurising adsorbent, method of its preparation and application // 2498849
FIELD: process engineering.SUBSTANCE: invention relates to desulfurisation. Adsorbent for removal of sulfur from cracked gasoline or diesel fuel comprises carrier consisting of silica source, inorganic oxide-based binder, metal oxide selected from IIB-group and catalyst metal suitable for recovery of sulfur reduced to hydrogen sulphide. Adsorbent features magnitude "з"<0.5, where "з" is ratio between the crystalline catalyst metal amount to that of adsorbent (in percentage). Reduced catalyst metal in adsorbent is preferably uniformly dispersed over carrier surface to make a monolayer. Invention covers also the adsorbent production process and its application for removal of sulfur from fluid flow.EFFECT: higher activity of adsorbent.20 cl, 1 dwg, 2 tbl, 5 ex
ethod of combusting mercury-bearing fuel (versions), method of reducing mercury emission, method of combusting coal with reduced emission of harmful elements and method of decreasing mercury content in flue gas // 2494793
FIELD: process engineering.SUBSTANCE: invention relates to combustion processes, particularly, to methods of decreasing content of mercury or sulfur in flue gases emitted in atmosphere. Method of combusting mercury-bearing fuel in fuel combustion furnace unit comprises adding the composition of main sorbent to fuel before feed into furnace, said composition including bromine or iodide. It includes feed of said fuel into said furnace with added composition of the main sorbent. It comprises also addition of extra sorbent components containing calcium, silica and aluminium oxide into said furnaces at over 1093°C to burn said fuel to form combustion product gases, ash and heat energy. Invention covers also versions of the method of combustion and reduction of mercury content in flue gases.EFFECT: resulted ash of high cementing properties and not leached with respect to metals.47 cl, 2 tbl, 13 ex

ethod of treating waste water // 2479493
FIELD: chemistry.SUBSTANCE: invention relates to purification of waste water from dissolved impurities and can be used particularly in food and chemical industry to treat waste water from factories. The method involves adding iron chloride to the water to be treated. Further, fine aluminium-containing powder obtained from aluminium-containing material, which is a waste from aluminium strip etching when making aluminium structures, is added to the treated water. Preparation of said powder involves treating aluminium-containing material with 3-7% sodium hydroxide solution at temperature of 72-80°C with weight ratio of the aluminium-containing material to the sodium hydroxide solution ranging from 1:2 to 1:3 for 3-5 hours, filtering to obtain an aluminium hydroxide residue and a filtrate containing sodium aluminate, mixing the filtrate with 1-2 M sulphuric acid solution to achieve pH of 6.4-7.4, filtering to obtain an aluminium hydroxide residue, washing off sodium ions from the obtained residue with water, drying said residue in a drying cabinet at temperature of 180-200°C at a heating rate of 10-20°C/h, calcining in a muffle furnace for 5-5.5 hours at 450-475°C at heating rate of 50°C/h, treating the obtained powdered aluminium oxide with an aqueous solution of surfactant OP-10 with concentration of 0.019-0.022% at temperature of 39-41°C, with ratio of aluminium oxide to the surfactant solution of 1:10 for 10-12 minutes and drying at room temperature. Iron oxide is added to the waste water in form of 1% iron chloride solution in amount of 1-7% of the volume of waste water, and the obtained fine aluminium-containing powder is added to the waste water in amount of 1.7-4 mg/dm3 waste water, followed by settling for 20-25 minutes and separating the purified water.EFFECT: invention increases efficiency of treating waste water while reducing sorbent consumption.2 cl, 2 tbl, 3 ex

ethod of treating waste water // 2479492
FIELD: chemistry.SUBSTANCE: invention relates to purification of waste water from dissolved impurities and can be used particularly in food and chemical industry to treat waste water from factories. The method involves feeding a powdered sorbent in form of fine aluminium-containing powder obtained from aluminium-containing material which is a waste from aluminium strip etching when producing aluminium structures, by treating aluminium-containing material with 3-7% sodium hydroxide solution at temperature of 72°C-80°C with weight ratio of the aluminium-containing material to the sodium hydroxide solution ranging from 1:2 to 1:3 for 3-5 hours, filtering to obtain an aluminium hydroxide residue and a filtrate which contains sodium aluminate, mixing the filtrate with 1-2 M sulphuric acid solution to achieve pH of 6.4-7.4, filtering to obtain aluminium hydroxide residue, washing off sodium ions from the obtained residue with water, drying said residue in a drying cabinet at temperature of 180-200°C at heating rate of 10-20°C/h, calcining in a muffle furnace for 5-5.5 hours at 450-475°C at heating rate of 50°C/h, treating the obtained powdered aluminium oxide with an aqueous solution of surfactant OP-10 with concentration of 0.019-0.022% at temperature of 39-41°C, with ratio of aluminium oxide to the surfactant solution of 1:10 for 10-12 minutes and drying at room temperature. The obtained fine aluminium-containing powder is fed into the waste water in amount of 1.7-4 mg/dm3 waste water, followed by settling for 20-25 minutes and separation of the purified water.EFFECT: invention improves efficiency of treating waste water while reducing the amount of sorbent used.2 cl, 1 tbl, 3 ex
ethod of removing copper ions from effluents // 2455238
FIELD: process engineering.SUBSTANCE: invention may be used in sorption cleaning of effluents. In compliance with proposed method, effluents are processed by sorbent including minced wastes of aluminate hydrate concrete. Cleaning is performed by filtration through sorbent with layer thickness of 0.05-0.06.EFFECT: higher efficiency, reduced consumption of sorbent, accelerated process.2 tbl, 1 ex

Adsorbent-desiccant and preparation method thereof // 2455232
FIELD: chemistry.SUBSTANCE: invention relates to chemistry. The spherically shaped adsorbent-desiccant is prepared by balling moist powder of a nanostructured oxygen-containing aluminium compound. The granules undergo thermal-steam treatment in air at the first step at temperature 20-25°C for 1-20 hours, at the second step at 100-120°C for 1-20 hours and calcination at 450-550°C in a current of dry air and rate of heating to calcination temperature of 20-50°C/h for 2-6 hours. The nanostructured oxygen-containing aluminium compound of formula: Al2O3-x(OH)x·nH2O, where x is in the range of 0-0.28 and n is in the range of 0.1-0.4, is mixed with a modifying additive such as: CaO and/or Na2O, and/or MgO, and/or zeolite. A spherically shaped adsorbent-desiccant is obtained, which contains aluminium oxide in form of a mixture χ-, η-, γ- and is X-ray amorphous, and a modifying additive such as: zeolite and/or (in terms of) CaO and/or Na2O, and/or MgO is also obtained.EFFECT: invention increases adsorbent capacity.11 cl, 1 tbl, 35 ex
ethod of drying and cleaning natural gases // 2447929
FIELD: process engineering.SUBSTANCE: invention relates to conditioning of natural and associated oil gases, namely, to their drying and cleaning. Proposed method of drying and cleaning of hydrocarbons C6+ comprises bringing them in contact with combined layer of adsorbents consisting of consecutively arranged adsorbent-dehydrator based on aluminium oxide and fine-pored silica gel, and subsequent reactivation of said silica gel and adsorbent-dehydrator by cleaned gas. Here, modified fine-pored silica gel is used containing 0.01-0.5 wt % of carbon compounds. Contact between natural gases with adsorbent-dehydrator and fine-pored silica gel is realised at their ratio of 5-20% of total charge of combined layer of adsorbents.EFFECT: higher efficiency.1 tbl, 6 ex

ethod for removing mercury from initial hydrocarbon raw material // 2443758
FIELD: oil and gas industry.SUBSTANCE: invention refers to the method for removing mercury from flow of gaseous hydrocarbon from hydrocarbon cracking plant where the flow includes mercury and olefines, oxidised by-products, dienes and hydrocarbons different from dienes; the above method involves flow contact with the composition containing (a) solid porous refractory material of substrate, which has surface acidity in the range of 0.1 to 10.0 mcmol of non-reversible NH3/g of substrate, as is measured with chemical adsorption of ammonia, where substrate material has the surface area of approximately 0.1 m2/g to approximately 1.6 m2/g, and substrate material contains at least 80% of alpha-oxide of aluminium; and (b) silver in the form of reduced silver.EFFECT: effective removal of mercury from flow of gaseous hydrocarbons.9 cl, 19 ex, 9 tbl, 3 dwg
Crude mixture for producing organomineral sorbent // 2440846
FIELD: chemistry.SUBSTANCE: invention relates to oil sorbents. Disclosed is a crude mixture for producing sorbents for eliminating oil spills from the ground, which contains the following in wt %: electrofilter dust from aluminium production 92.7…96.5; saponified tall oil fatty acids 0.3…1.5; softwood bark 3.0…7.0.EFFECT: wider raw material base owing to use of production wastes to produce a high-sorption capacity sorbent.
Crude mixture for producing reinforced granular sorbent // 2440845
FIELD: chemistry.SUBSTANCE: invention relates to sorption techniques. Disclosed is a crude mixture for producing an oil sorbent. The mixture contains the following in wt %: mixed sludge collector wastes from aluminium production 93.7…97.1; saponified tall oil fatty acids 0.3…0.9; softwood bark 2.0…6.0.EFFECT: wider range of high-sorption capacity oil sorbents.2 tbl,1 ex

ethod for selective removal of component from aqueous liquid // 2429902
FIELD: chemistry.SUBSTANCE: invention relates to a method for selective binding and extraction of at least one component from whole blood or humour, where the blood or humour is allowed to pass through a hard integrated separating matrix without leaking from it. The matrix has a porous structure with pore size ranging from 5 mcm to 500 mcm, as well as an active surface whose area ranges from 0.5 cm2 to 10 m2, and this surface is cable of binding such components.EFFECT: invention enables to obtain high flow rate in a separating device without pressure drop arising with time, avoiding the effect of shearing force on the blood even at high flow rate while maintaining low pressure in the line in order to prevent damage to blood vessels, providing selective binding or separation of a component from whole blood or humour and eliminating inflammatory processes without the need to split blood into plasma and blood cells.17 cl, 6 dwg, 2 tbl, 35 ex

Compositions particularly used to trap nitrogen oxides (nox) // 2428248
FIELD: chemistry.SUBSTANCE: invention relates to catalytic compositions for trapping nitrogen oxides contained in a gas stream. The composition is based on aluminium oxide and contains cerium oxide in amount of 2-15 wt % and barium oxide in amount of 10-25 wt %, wherein the aluminate compound BaAl2O4 in the composition is not detected via X-ray diffraction after firing the composition in air at temperature 700°C for 2 hours. The invention also discloses methods of preparing the catalytic composition.EFFECT: invention provides high thermal stability of the composition in a wide temperature range.1 dwg, 1 tbl, 7 ex

Filtration medium for fluid and gas purification, method of its preparation and method of filtration // 2398628
FIELD: process engineering.SUBSTANCE: invention relates to sorption-filtration materials for purification of gases and fluids. Proposed material comprises porous base with superfine particles of aluminium oxide hydrate, said particles being distinguished for grain size of 0.2 to 5.0 mcm, specific surface of 100-500 m2/g and porosity of 30 to 95%. Note here that aforesaid base represents 3D permeable matrix with pore size of 1 to 25 mcm and porosity of 42 to 98%. Said matrix may be formed by fibers, granules or represent a one-piece block.EFFECT: higher sorption properties, mechanical strength and longer life.27 cl, 9 ex, 1 tbl, 4 dwg
Sorbent, method of preparing said sorbent and method of drying hydrocarbons // 2379103
FIELD: chemistry.SUBSTANCE: invention relates to drying hydrocarbons through sorption and can be used in oil refining and petrochemical industries. A calcium chloride based sorbent is proposed, which is placed in pores of a solid body - matrix, which is a composition of aluminium, calcium and boron oxides, with the following content of components of the sorbent, wt %: AI2O3 - 50-80; B2O3 -5-30; CaO - 10-11; CaCl2 - 5-30, with total concentration of Broensted and Lewis acid sites on the surface of the sorbent of not more than 7 mcmol/g. The sorbent for drying hydrocarbons is obtained by simultaneously mixing a hydrate of aluminium oxide with pseudo-boehmite structure with orthoboric acid and calcium chloride, granulation, drying and calcination. The method of drying hydrocarbons involves bringing hydrocarbons into contact with the proposed sorbent at temperature 0-40°C and regeneration of the sorbent at temperature 150-200°C in the current of a gas consisting of C1-C4 hydrocarbons, hydrogen, nitrogen.EFFECT: invention enables efficient drying of hydrocarbons, particularly pyrolysis gas; the sorbent is characterised by high stability of drying properties during repeated use in drying-regeneration cycles.3 cl

ethod and catalyst for hydroconversion of heavy hydrocarbon starting material // 2376059
FIELD: chemistry.SUBSTANCE: present invention relates to a method and catalyst composition, used in hydroconversion of heavy hydrocarbon starting material. A catalyst composition is described, which is suitable for use in hydroconversion of heavy hydrocarbon starting material. The said catalyst composition contains: a component based on a group VIB metal; a component based on a group VIII metal; a component based on phosphorus; and carrier material, which contains aluminium oxide, where the said carrier material is characterised by average pore diametre ranging from 100 Å to 140 Å, pore size distribution width less than 33 Å, and pore volume at least equal to 0.7 cm3/g, where less than 5% of the said pore volume in the said carrier material is made up of pores in the said carrier material, exceeding 210 Å, and the carrier material contains less than 3 wt % silicon dioxide. A method of hydroconversion of heavy hydrocarbon starting material is also described, where the said method involves the following stage: bringing the said heavy hydrocarbon starting material into contact with the above mentioned catalyst in suitable conditions, where the said catalyst is effective in hydroconversion of at least part of the said heavy hydrocarbon starting material, obtaining lighter hydrocarbons. A composition is also described, which is suitable for use as a component of the carrier material based on aluminium oxide or a catalyst composition, meant for use during hydroconversion of heavy hydrocarbon starting material, where the said composition contains: aluminium oxide, which enables obtaining the said carrier material based on aluminium oxide which has pores which are characterised by average diametre in the range from 100 Å to 140 Å, pore size distribution width less than approximately 33 Å, pore volume at least equal to 0.75 cm3/g where less than 5% of the said pore volume is made up of the said pores with diametre exceeding 210 Å, and where the carrier material contains less than 3 wt % silicon dioxide.EFFECT: catalyst compositions with improved catalyst activity and stability with respect to hydroconversion of heavy hydrocarbon starting material.8 cl, 5 tbl, 3 dwg, 6 ex

Particles of basic aluminium salt containing anion of organic acid, preparation method and application thereof // 2360900
FIELD: chemistry, medicine.SUBSTANCE: invention refers to the new particles of the basic aluminium salt containing the anion of the organic acid and having the following formula (I): Ma[Al1-xM'x]bAzBy(OH)n·mH2O (where M is at least one cation selected from the Na+, K+, NH4 + and H3O+; M' is at least one metal cation selected from the Cu2+, Zn2+, Ni2+, Zr4+, Fe2+, Fe3+ and Ti4+; A is at least one anion of the organic acid selected from the anions of oxalic, citric, malic, tartaric, glyceric, gallic and lactic acids; B is at least one anion of the inorganic acid selected from the sulphate (SO4 2-), phosphate (PO4 3-), and nitrate ions (NO3 1-); and a, b, m, n, x, y and z meet the conditions 0.7≤a≤1.35; 2.7≤b≤3.3; 0≤m≤5; 4≤n≤7; 0≤x≤0.6; 1.7≤y≤2.4 and 0.001≤z≤0.5 respectively). The particles have the form of the grains, paired particles, rectangular parallelepipeds, disks (having the form of the Go stones), hexagonal plates, rice grains or cylinders with their diametre being constant. The invention refers also to the method of these particles preparation, to the additive to the polyethylene or polypropylene, to polymer resin containing these particles, to the polymer resin composition containing the additive with mass ratio additive/polyethylene or polypropylene (0.5-90):100, to the adsorbent consisting of these particles, to the colorant carrier and to the UV light absorber consisting of the particles of basic aluminium salt.EFFECT: enhancing of the transparency and tensile strength.20 cl, 16 ex, 12 tbl, 32 dwg
Nucleo-protector, cell-preserving sorption medium // 2347610
FIELD: chemistry.SUBSTANCE: proposed nano-sorption medium has a matrix with a meso-, macroporous structure - gamma aluminium oxide, made from primary blocks with 3-9 nanometre dimensions, and modifying components: 3.0-10.0 wt % hill-growing saltwort extract in the end product and up to 4 wt % lithium citrate in the end product. The packed density of the sorbent is 0.76-1.1 g/cm3 depending on grain-size composition and content of the modifier on the surface of the sorbent.EFFECT: when the obtained sorption medium is in contact with liquid media, it prolongs extraction of modifiers from the surface.2 cl, 5 ex, 6 tbl

Sorbent for heavy metals, method of its production and method of water purification // 2336946
FIELD: chemistry.SUBSTANCE: claimed is sorbent, made in form of granules of highly-porous aluminium oxide with pore volume not less than 0.55 cm3/g, specific surface not less than 200 m2/g, representing assembly of nanofibres, connected together into rigid spongy structure and containing nano-sized particles of iron oxides, formed as layer on the surface of said granules in amount 2-10% from granules weight. Sorbent is obtained by impregnation of porous base with solution of iron compounds with further processing with alkali.EFFECT: sorbent has high capacity and mechanical strength.17 cl, 2 ex, 2 dwg

Sorbent "с-кп" for atmospheric air purification // 2336945
FIELD: chemistry.SUBSTANCE: sorbent is obtained by feathering of silted, granulated and dried clay with pyrolusite with further burning. Sorbent is active with respect to oxides of nitrogen, carbon and sulfur, as well as formaldehyde and butylmercaptane.EFFECT: higher sorbent activity.2 cl, 3 tbl
Porous sorbent with hepatoprotector properties // 2329864
FIELD: chemistry.SUBSTANCE: invention falls within the domain of porous materials, adsorbents for medical purposes, carriers of enzymes, cells, medical substances and biologically active substances. Carbon-mineral sorbent is given with its detoxifying properties, specific hepatoprotector properties by nonrigid modification of the sorbent with a polysaccharide of plant origin - fucoids. After low-temperature treatment till 50°C the sorbent is in the form of small black coloured granules with a surface of a specific area till 230m2/g, which contains the modified polysaccharide till 5% of its weight. The packed density of sorbents comprises 0.75-1.1g/cm3 depending on the granulometric composition and the content of the modifier on the surface of the sorbent. When the sorbent gets in contact with liquids the modifier, the polysaccharide fucoidan, by 40-60% leaves from the surface into the solution. The invention solves the problem of forming an effective porous sorbent with hepatoprotector properties on the basis of high-strength carbon-mineral sorbent.EFFECT: getting an effective porous sorbent with hepatoprotector properties on the basis of high-strength carbon-mineral sorbent.2 cl, 5 tbl

Sorbent for cleaning water off heavy metal ions // 2328341
FIELD: chemistry.SUBSTANCE: sorbent for cleaning water off the heavy metal ions consists of the grinded zeolite, nanophase iron hydroxide and nanophase aluminum metahydroxide at the following ratio in mass percent: 12-18 of nanophase iron hydroxide; 5-13 of nanophase aluminum metahydroxide and zeolite - the remaining.EFFECT: sorbent enables capturing heavy metal ions.1 dwg, 3 tbl, 2 ex
Ferrocyanide sorbent preparation method // 2320406
FIELD: inorganic sorbents.SUBSTANCE: invention proposes method, according to which porous mineral carrier (silica, aluminosilicate) is subjected to alkaline activation and treatment with water-ammonia solution of transition metal and then with alkaline metal ferrocyanide, after which rinsed and dried.EFFECT: improved selective sorption characteristics regarding cesium radionuclides, especially in high-salinity alkaline solutions.3 cl, 1 tbl, 6 ex
Composite-type sorption material and a method for preparation thereof // 2313387
FIELD: sorbents.SUBSTANCE: invention provides material containing alumina particles having diameter 8-13 nm, length 150-200 nm, and specific surface 350-600 m2/g, prepared via hydrolysis of ultrafine alumina powder, which particles are characterized by that oxides and hydroxides of transition metals, selected from iron, manganese, titanium, zirconium, and mixture thereof, are attached to their surfaces. A method is described wherein nano-sized nonspherical alumina is prepared via hydrolysis of ultrafine alumina powder, after which solution of above-defined salt is added to resulting slurry of alumina particles, then mixture is supplemented by alkali solution, calcined, and fractioned.EFFECT: increased sorption capacity and strength at lower hydrodynamic resistance.10 cl, 5 ex
Desulfurization and sorbents necessary for it // 2309795
FIELD: compositions of sorbents.SUBSTANCE: the present innovation deals with removing sulfur from cracked gasoline and diesel oil. The variants of compositions have been suggested that contain zinc oxide and metals-promoters in zero-valent state. The obtained cracked gasoline due to applying the compositions declared contains decreased quantity of thiols and tetrahydrothiophenes.EFFECT: higher efficiency.64 cl, 9 ex, 4 tbl

One-nanometer positive fiber adsorbent // 2304463
FIELD: chemical engineering.SUBSTANCE: absorbent comprises non-spherical particles of aluminum hydroxide whose fiber diameter is less than 50 nm. The absorbent is produced by interacting the initial aluminum component with water solution at a temperature of up to 100°C and applied directly on the fiber surface.EFFECT: enhanced absorbing capabilities.60 cl, 9 dwg, 8 tbl, 15 ex
Filtering material // 2300409
FIELD: environmental protection; production of the filtering materials.SUBSTANCE: the invention is pertaining to water treatment, to be exact -to the means for purification of water from fluorides. The material produced according to the invention may be used for purification of the drinking water from the water pipelines and the freshwater springs. The filtering material contains the product of the dynamic interaction - the activated alumina with the water solution of aluminum sulfate and additionally the target additive expanding the filterability of the material and ensuring adjustment of рН of the filtrate up to the values allowing to use the filtrate for a drinking without additional purification. As the target additive may be used: the activated charcoal; the mixture of dolomite with the cation-exchange resin; the mixture of the cation-exchange resin and the anion-exchange resin in the carbonate form. The technical result of the invention consists in the extension of the filterability of the filtering material, simplification of the process of purification of the water containing fluoride-ions, reduction of its net cost.EFFECT: the invention ensures the extension of the filtering material filterability, simplification of the process of purification of the water containing fluoride-ions, reduction of such a water net cost.5 cl, 9 tbl, 9 ex
odified sorbent preparation process // 2282493
FIELD: sorbents.SUBSTANCE: invention concerns modified sorbents applicable in food-processing and chemical industries. Modified sorbent is prepared from aluminum-containing raw material, namely from aluminum band etching waste in manufacture of aluminum structures. Fifty gram of raw material is treated for 3-5 h at 70°C with 3-7% sodium hydroxide solution in amounts 100. 125 or 150 cc. Resulting precipitate is filtered and sent to re-treatment with sodium hydroxide and sodium aluminate containing filtrate is mixed with 1-2 M sulfuric acid solution so that pH reaches 6.4-7.4. Aluminum hydroxide precipitate obtained is filtered and rinsed with water to remove sodium ions, heated in drying box to 200°C at heating rate 10-20°C/h, and calcined in muffle kin for 5 h to 450°C at heating rate 50°C/h to give pulverulent aluminum oxide. The latter is treated for 10-12 min with aqueous solution of surfactant OP-10 with concentration 0.019-0.022% at 39-41°C and aluminum oxide-to-surfactant ratio 1:10, after which dried at room temperature.EFFECT: increased adsorption capacity, reduced production cost, and utilized production waste.1 tbl, 5 ex
ethod of decontamination of water from radiostrontium // 2276105
FIELD: methods of the sorption decontamination of waters from the radioactive impurities.SUBSTANCE: the invention is pertaining to the method of the sorption decontamination of waters from the radioactive impurities. The method of decontamination of the water from radiostrontium includes the treatment of the water with a sorbent based on the burned bauxite ore. At that the ore is burned together with calcium -magnesium lime - CaCO3·MgCO3 and sodium soda salt - Na2CO3 at the temperature of no less than 1200°C and flushed with the water to remove the solvable sodium compounds. It is preferable, that the mixture of the bauxite ore is subjected to burning with calcium-magnesium lime and sodium soda salt in the mass ratio of 1 : 0.55-0.60 : 0.055-0.060. The method ensures an increased effectiveness of removal of the radiostrontium at usage of the initial bauxite ore without lowering of effectiveness of the water decontamination from radiocesium, and also allows to reduce considerably the amount of the spent sorbents, which are subjected to disposal.EFFECT: the invention ensures an increased effectiveness of removal of radiostrontium from the water at usage of the initial bauxite ore without lowering of effectiveness of the water decontamination from radiocesium, allows to reduce considerably the amount of the spent sorbents, which are subjected to disposal.2 cl, 10 ex
Solid composite adsorbent for treatment of hydrocarbon streams, method for preparation thereof, and a impurities-removal process // 2264855
FIELD: sorbents.SUBSTANCE: invention provides an improved adsorbent to remove impurities form various hydrocarbon streams. Adsorbent contains zeolite, alumina, and an additional metal oxide, at least 10 mol % of metal in the metal oxide being based on stoichiometric amount of metal required to compensate negative charge of zeolite lattice. Resulting adsorbent containing zeolite X, aluminum oxide, and sodium is successfully used to treat ethylene stream to liberate the latter from CO2, H2S, methanol, and other sulfur- and oxygen-containing compounds.EFFECT: expanded hydrocarbon purification possibilities.6 cl, 4 tbl, 11 ex
Alumina-based sorption material with bactericidal properties // 2254163
FIELD: sorbents.SUBSTANCE: invention relates to developing porous materials and adsorbents, including medicine-destination ones, as effective agents for hemo-, entero-, and vulneosorption, cosmetics, environment-oriented materials, enzyme and cell carriers, biologically active substances, and drugs. Alumina-based sorbent of invention is characterized by meso- and macroporous structure and contains modifying component: polyvinylpyrrolidone-silver complex with 0.05 to 0.3 wt % Ag.EFFECT: increased adsorption capacity regarding toxins with different molecular weights and acquired bactericidal properties.3 tbl, 5 ex
 
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