Method for obtaining of sorbent for solid surfaces and water purification from oil and liquid oil products

FIELD: chemistry.

SUBSTANCE: Kamennoyarsky gaize of the Astrakhan region, containing (%) SiO2 - 86.2; Al2O3 - 4.15; Fe2O3 - 1.56; TiO2 - 0.2; K2O - 1.2; CaO - 1; Na2O to 0.5; MgO to 1, is taken as the raw material. The gaize is dried at a temperature of 100C, crushed, sifted and fractions of different sizes are separated. Crushed gaize fraction recommended as a sorbent should contain 75% of particles with a size of 0.001 to 0.1 mm with residual humidity of 2-5%.

EFFECT: invention expands the spectrum of sorbents obtained from natural gaize.

3 tbl, 3 ex

 



 

Same patents:

FIELD: medicine.

SUBSTANCE: invention refers to biology and medicine, and can be used in clinical practice for therapy of diseases related to lipid storage disease and disorders of lipoprotein metabolism. What is presented is a sorbent for removal lipoproteins (LDLP) from human plasma and blood, which contains a non-woven microfiber matrix of polypropylene and polyacrylic acid covalently bond to a matrix surface. The sorbent is produced by photo-induced graft polymerisation of acrylic acid on the surface of the sorbent matrix. The sorbent matrix is processed with a photoinitiator solution in a volatile solvent and air-dried. The sorbent matrix is then immersed into an aqueous solution of acrylic acid, removed from a solution of acrylic acid, laid on a flat substrate, coated with an ultraviolet-transparent plate from above and exposed to ultraviolet through this plate. The produced sorbent has the high sorptive capacity and LDLP selectivity.

EFFECT: method is easy to implement and cost-effective.

2 cl, 1 tbl, 1 ex

FIELD: chemistry.

SUBSTANCE: invention relates to field of analytic chemistry. Carrier is modified with organosilicon compound, containing -SH or -NH2 group, is processed with colloid gold solution. After that, sulphur-containing organic compound is covalently fixed on the surface of gold nanoparticles.

EFFECT: claimed is method of obtaining separation material, containing silicon dioxide-based carrier and gold nanoparticles.

3 cl, 6 dwg

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

FIELD: chemistry.

SUBSTANCE: method involves boron industry waste (borogypsum) processing with the waste containing calcium sulphate dehydrate and amorphous silica. The waste is processed by means of a stoichiometric amount of potassium hydroxide and sodium hydroxide in a solid-to-liquid ratio 1:(19-20).

EFFECT: producing the high-capacity sorbent in relation to heavy metal ions.

2 cl, 2 ex

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

FIELD: chemistry.

SUBSTANCE: disclosed is a method of producing a sorbent, which includes mixing sodium salt-preactivated bentonite clay and crushed paraffin. Mixing is carried out at 60-70C for 20 minutes. Particles with size of 2-5 mm are moulded from the mixture. Moulding is carried out while stirring the mass with an anchor mixer rotating at 50-60 rpm.

EFFECT: low cost of the sorbent while preserving quality.

1 tbl

FIELD: chemistry.

SUBSTANCE: invention relates to field of obtaining ferromagnetic carbon sorbents, intended for water purification. Cellulose-containing raw material is impregnated with water solution of iron salt, moisture excess is separated and obtained mixture is subjected to pyrolysis. Pyrolysis is carried out in pyrolysis chamber at 400-500C, realising a series of successive 0.1-1.0 s long heat impulses with 10 s interval between impulses. Mixture heating is realised by means of nichrome rods, connected with electric generator and placed in the volume of pyrolysis chamber with separation of chamber into locally heated cells.

EFFECT: invention provides reduction of energy consumption, time for the process realisation and its cheapening.

4 cl, 2 dwg, 2 ex

FIELD: chemistry.

SUBSTANCE: invention relates to a process of production of magnetic sorbents. The sorbent comprises humic acids as a polymeric binder and a magnetic filler comprising magnetite. The size of magnetite particles is 7-30 nm. The magnetite:humic acid ratio is from 1:4 to 4:1. The efficiency of aquatic environment decontamination by introducing the sorbent depends on the nature of contaminants and amounts to 97-100%.

EFFECT: product possesses magnetic properties and high sorption capacity.

2 cl, 2 ex

FIELD: chemistry.

SUBSTANCE: invention relates to production of a sorbent for equipment for protecting respiratory organs. The method of producing a sorbent includes mixing powdered calcium hydroxide or oxide with water with weight ratio Ca2+/H2O of (0.70.3)/1 and adding a calculated amount of potassium orthophosphate having density of 1.410.05 g/cm3. The orthophosphate solution is prepared with molar ratio KOH/K2HPO4, of (0.9-1.1)/1, or molar ratio KOH/KH2PO4 of (1.9-2.1)/1. The obtained mixture is stirred, held and moulded. The granules are dried to residual moisture content of 16-21 wt %.

EFFECT: invention enables to obtain a sorbent having a high chemisorption rate, high dynamic capacity for carbon dioxide and mechanical strength.

4 cl, 1 dwg, 1 tbl, 7 ex

FIELD: process engineering.

SUBSTANCE: invention relates to production of sorbents for chromatographic separation of fullerenes. Sandwiched nanotubes are subjected to heat treatment at 800-1000C and mixed with disperse Teflon. Said step are performed in the medium of nitrogen or inert gas.

EFFECT: simplified production of efficient sorbent.

2 dwg, 2 ex

FIELD: chemistry.

SUBSTANCE: invention relates to nickel complex of 5,10,15,20-tetrakis [3',5'-di(2"-methylbutyloxy)phenyl]-porphin of formula

EFFECT: invention makes it possible to obtain nickel complex, demonstrating property of stationary phase for gas chromatography.

1 tbl

FIELD: chemistry.

SUBSTANCE: invention relates to field of analytic chemistry. Carrier is modified with organosilicon compound, containing -SH or -NH2 group, is processed with colloid gold solution. After that, sulphur-containing organic compound is covalently fixed on the surface of gold nanoparticles.

EFFECT: claimed is method of obtaining separation material, containing silicon dioxide-based carrier and gold nanoparticles.

3 cl, 6 dwg

FIELD: chemistry.

SUBSTANCE: claimed invention relates to a method of obtaining a catalyst for the selective catalytic reduction of NOx in a flue gas, containing an alkali metal, with the application of ammonia as the reducing agent, with the catalyst containing a surface with catalytically active centres of Bronsted or Lewis acids, with the surface being, at least, partially covered with a coating, containing, at least, one metal oxide, and the said method includes the supply of a carrier, impregnation of the carrier with the first water solution, containing a vanadium component, drying and calcination of the impregnated carrier, covering the impregnated carrier with the second water suspension, containing, at least, one oxide of a basic metal, representing MgO, and drying and calcination of the coated carrier for the second time.

EFFECT: obtaining the catalyst with an improved resistance to poisoning with alkali metals.

7 cl, 6 dwg, 4 ex

FIELD: oil and gas industry.

SUBSTANCE: contaminated surface is treated with a sorbent. The sorbent saturated with oil is collected and transported to be utilised. Finished products from ash and foam concrete of autoclave hardening are used as a sorbent.

EFFECT: reducing sorbent consumption, increasing its retaining ability and a possibility of its being used at negative ambient temperatures.

1 tbl

FIELD: process engineering.

SUBSTANCE: invention relates to production of sorbents for chromatographic separation of fullerenes. Sandwiched nanotubes are subjected to heat treatment at 800-1000C and mixed with disperse Teflon. Said step are performed in the medium of nitrogen or inert gas.

EFFECT: simplified production of efficient sorbent.

2 dwg, 2 ex

FIELD: chemistry.

SUBSTANCE: invention relates to reagents intended for decontaminating soil contaminated with hydrocarbons, and can be used for decontamination and reclamation of oil-contaminated soil and oil extraction and processing wastes. The reagent for decontaminating oil contaminated with hydrocarbons contains unslaked lime and paraffins as a water repellent.

EFFECT: invention provides high degree of decontamination and improved hydrophobic properties of the decontamination products.

1 tbl

FIELD: chemistry.

SUBSTANCE: claimed is method of obtaining sorbent for gaschromographic separation of aromatic polycyclic hydrocarbons. Calcium aluminate is obtained by mixing in solution calcium nitrate, aluminium nitrate and crystalline citric acid at molar ratio of components 1:2:3. After mixing drying at 130C and burning at 1000C are carried out. Obtained product is mixed with solution of sodium chloride, evaporated on water bath until loose sample is obtained, dried at 120C and incinerated at 900C.

EFFECT: increase of sorbent selectivity.

3 tbl, 3 ex

FIELD: chemistry.

SUBSTANCE: invention relates to reagents, intended for the neutralisation of wastes, polluted with hydrocarbons, and can be applied for the neutralisation and utilisation of wastes from gas-oil extraction and processing. A reagent for the neutralisation of wastes, polluted with hydrocarbons, contains quicklime and oil wastes as a hydrophobisator.

EFFECT: increase of the neutralisation efficiency and quality of end products of neutralisation.

2 tbl, 2 ex

FIELD: chemistry.

SUBSTANCE: invention relates to the field of materials science and analytical chemistry. A nanohybrid functional separation material contains gold nanoparticles covalently fixed on a carrier and covalently fixed sulphur-containing organic ligands on the surface of gold nanoparticles.

EFFECT: invention provides an increase of the separation material efficiency.

4 cl, 6 dwg, 4 ex

FIELD: chemistry.

SUBSTANCE: invention relates to method of obtaining thin-layer chiral plates for planar chromatography of stereoisomers and their racemic mixtures, which includes non-covalent binding of glycopeptides antibiotic eremomycin with silica adsorbent with silicagel binding by method of impregnation in alkaline water solution with pH 8.010.0 at room temperature in one stage.

EFFECT: increase of method efficiency.

2 cl, 3 tbl, 5 ex

FIELD: chemistry.

SUBSTANCE: invention relates to sorption purification of sewage and drinking water. Purification of water, which has concentration of lead cations to 200 mg/l, is carried out by sorption with 95% glauconite concentrate, which is preliminarily subjected to acid treatment. Height of sorbent layer constitutes 0.5 m, linear flow velocity is from 0.38 to 1 m/h. purification is carried out for 20 hours.

EFFECT: invention makes it possible to increase degree of water purification.

1 tbl, 1 dwg

Up!