Method of a ferric iron hydroxide hydrosol production |
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IPC classes for russian patent Method of a ferric iron hydroxide hydrosol production (RU 2250914):
 Electrode, apparatus and method for electrolytic treatment of liquid, system for regenerating soil in situ and unit for performing reduction-oxidation reactions / 2247175
Electrode includes elongated, mainly hollow body made of porous material characterized by comparatively low electric conductivity, connector in the form of elongated electrically conducting member connected to power source. Connector passes along inner cavity of electrode body and it has contact with surface of inner wall of body in large number of places mutually spaced along length of body for distributing electric current supplied from power source practically uniformly along electrode.
Electrode, apparatus and method for electrolytic treatment of liquid, system for regenerating soil in situ and unit for performing reduction-oxidation reactions / 2247175
Electrode includes elongated, mainly hollow body made of porous material characterized by comparatively low electric conductivity, connector in the form of elongated electrically conducting member connected to power source. Connector passes along inner cavity of electrode body and it has contact with surface of inner wall of body in large number of places mutually spaced along length of body for distributing electric current supplied from power source practically uniformly along electrode.
 Method of saturation of water with oxygen and plant for realization of this method / 2247081
Proposed method includes successive ejection-floatation mixing of plasma-chemotronic method of vapor-and-gas mixture H2O2+02 with water. Plant proposed for realization of this method includes two systems interconnected by means of vapor-and-gas pipe line: ejection-floatation system and vapor-and-gas producing system. Ejection-floatation system for saturation of water with oxygen is provided with pump, ejector and pressure floatation column interconnected by circulating pipe line. In its lower part column is connected to starting water pipe line and in upper part it is connected to oxygen-saturated water pipe line. Ejector is mounted in circulating pipe line between lower part of column and pump and is connected to vapor-and-gas mixture producing system by means of vapor-and-gas pipe line. Closed electrolyte circulating system for obtaining the vapor-and-gas mixture includes gas-and-liquid separator, electrolyte reservoir, plasma-chemotronic apparatus whose lower part is connected with air or oxygen supply pipe line through flow regulator.
 Method and complex for preparing of bottled oxygen- saturated water / 2246882
Method involves producing oxygen-saturated water by ejection-floatation mixing of water with oxygen-containing gas; bottling oxygen-saturated water and capping, with gas-and-vapor H2O2+O2 mixture synthesized by plasma chemotronical method being used in all above operations. Complex of equipment comprises ejection-floatation unit for oxygen saturation of water and installation for supplying and bottling of oxygen-saturated water.
 Method for the production of anode paste (options) / 2242538
The invention relates to the field of electrode production and can be used in the manufacture of anodes in aluminium electrolysis cells for the electrolytic production of aluminum
A method of manufacturing an electrode for electrochemical processes / 2241787
The invention relates to electrochemistry, in particular, to a technology of electrochemical productions, more specifically, to a technology for production of electrodes for electrochemical processes in the electrolysis, including chlorine and chlorate electrolysis, galvanic, in electro-membrane processes: electrodialysis, electroosmosis, electrophoresis, electrosynthesis
A method of manufacturing an electrode for electrochemical processes / 2241786
The invention relates to electrochemistry, in particular, to a technology of electrochemical productions, more specifically, to a technology for production of electrodes for electrochemical processes in the electrolysis, including chlorine and chlorate electrolysis, galvanic, in electro-membrane processes: electrodialysis, electroosmosis, electrophoresis, electrosynthesis
A method of manufacturing an electrode for electrochemical processes / 2241785
The invention relates to electrochemistry, in particular, the technology of electrochemical productions, more specifically, to a technology for production of electrodes for electrochemical processes in the electrolysis, including chlorine and chlorate electrolysis, galvanic, in electro-membrane processes: electrodialysis, electroosmosis, electrophoresis, electrosynthesis
 The method of purification of gases from sulfur-containing impurities / 2241525
The invention relates to processes of absorption and cleaning of gases from sulfur-containing impurities and can be used in the purification of gases of different composition
The method of purification of gases from sulfur-containing impurities / 2241525
The invention relates to processes of absorption and cleaning of gases from sulfur-containing impurities and can be used in the purification of gases of different composition
 A method of obtaining a pigment ulesastumisega / 2090582
The invention relates to the field of technology for inorganic pigments and can be used to obtain inorganic iron-containing modified pigment
 Powder of a metal oxide, a powder of titanium oxide, method of producing powder metal oxide / 2127221
The method of obtaining cobalt containing magnetic iron oxide / 2061658
The invention relates to the production of magnetic recording media and can be used to obtain magnetic powder cobalt containing magnetic iron oxide
 The method of producing iron oxide / 2026820
The invention relates to the field of recycling industrial waste to produce valuable components and can be used, in particular, for technical iron oxide of the abrasive slurry waste generated in the bearing and other industrial applications
Method of a ferric iron hydroxide hydrosol production / 2250914
The invention is intended for a chemical industry, an agriculture and pedology and may be used at production of solutions for soils reclamation. 0.5 l of a ferric chloride solution with concentration of 0.5 l/mole gram-molecule is poured into a pan. Carbon electrodes are put into the solution. Pass a current of 1А. Each 5-60 seconds polarity of the electrodes is changed. In a result of replacement of anions of the salt for ions of the hydroxyl obtain a stable hydrosol of the ferric iron hydroxide. The invention allows to produce such sols using a simple and a production-friendly method commercially.
Method of preparing iron oxide pigments / 2256679
Invention is intended for use in chemical industry and construction for preparing varnishes, paints, and rubber products. Gas treatment slime from converter industry is fractioned, fraction up to 10 mm is dehydrated by drying at 70-110°C to at most 5% moisture content and reduced to particles not exceeding 300 μm in size. Color spectrum of product is extended from red to black by calcining disintegrated product at 300 to 900°C. Content of iron oxides in pigment is much higher than in pigments prepared using known processes.
Method of production of the magnetic liquid / 2307856
The invention is pertaining to the field of production of the magnetic liquids from the wastes of the etching and galvanic productions. The invention problem is production of the magnetic liquids on the basis of the water using the waste etching solution of the engineering plants as the source of the bivalent iron and the sediment-waste after purification of the waste waters of the galvanic manufacture by electrocoagulation - as the source for production of the trivalent iron. The problem is settled due to the fact, that the method provides for co-sedimentation of the salts of the bivalent and trivalent iron by the surplus of the ammonia concentrated solution, coating of the surface of the particles with the adsorbed layer of the stabilizing substance - sodium oleate, heating of the suspension and bringing it up to boiling at the constant hashing, centrifuging of the mixture after its cooling for separation of the large- dispersed particles be notable for the fact, that as salts of the bivalent and trivalent iron using the mixture of the waste etching solution of the engineering plants containing FeSO4 and the muriatic sediment-waste containing Fe(OH)3 in the ratio of 2:3 after purification of the sewage of the galvanic production by electrocoagulation.
Method of production of the ferric oxides / 2318730
The invention is pertaining to the method of production of the high purity ferric oxides and may be used in production of the pigments and the catalysts at production of the high purity ferric oxides. The ferric oxides are produced by interaction of the metallic iron made in the form of the microball-shaped particles either the scrap, or the turning chips, which dimensions are such, that the area of their surface per one kg of iron and per one liter of the reaction medium makes more than 0.01 m2 with the being stirred water solution of the carboxylic acid having рКа from 0.5 up to 6 for the first carboxyl and capable to thermolysis in the open air at the temperature of from 200 up to 350°С into carbon dioxide and the water. The ratio between the moles of the carboxylic acid and g-atoms of the iron makes from 0.03 up to 1.5 and the mass ratio of the water/iron - from 1 up to 20, the microball-shaped particles are kept in the suspension by stirring. The produced carboxylate of the ferrum (II) is oxidized up to carboxylate of the ferrum (III) with the oxidant selected from oxygen, the oxygen-containing gaseous mixture and hydrogen dioxide. The earlier produced carboxylate of the ferrum (II) also may be exposed to the oxidizing. Then the carboxylate of the ferrum (III) is heated up in the open air till production of the oxides. The invention allows to increase the purity of the ferric oxides and productivity at their production.
 Method of oxidation of sulphide minerals / 2385954
Method of sulphide minerals oxidation includes feeding of pulp with sulphide minerals and oxidising agent into reactor with following its blending and outlet of oxidised composition from reactor. During blending of pulp and oxidising agent in internal chamber of reactor in turbulent conditions it is implemented mechanical activation of surface of solid phase of pulp and disperse of oxidising agent. Outlet of oxidised compositions from internal chamber into external chamber of reactor is implemented under action of pressure created by inlet flow of pulp through openings overlapped in top part of internal chamber by regulator of pulp outlet. Additionally liquid phase of pulp is continuously circulates from external chamber into internal chamber of reactor. Oxidation rate of sulphide minerals is regulated by means of changing of oxidising agent concentration in pulp ensured b changing of its amount form 3000 up to 15000 mg·l/h at activation of pulp in reactor.
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FIELD: chemical industry and agriculture; production of hydrosol of ferric iron hydroxide. SUBSTANCE: the invention is intended for a chemical industry, an agriculture and pedology and may be used at production of solutions for soils reclamation. 0.5 l of a ferric chloride solution with concentration of 0.5 l/mole gram-molecule is poured into a pan. Carbon electrodes are put into the solution. Pass a current of 1А. Each 5-60 seconds polarity of the electrodes is changed. In a result of replacement of anions of the salt for ions of the hydroxyl obtain a stable hydrosol of the ferric iron hydroxide. The invention allows to produce such sols using a simple and a production-friendly method commercially. EFFECT: the invention allows to produce such sols using a simple and a production-friendly method commercially. 6 ex
The invention relates to agriculture and soil science, namely to methods of obtaining solutions for soil reclamation. A method of obtaining Zola hydroxide, iron [1], which consists in the treatment of a solution of ferric chloride anion-exchange resin in the Oh form. In a solution of ferric chloride added portions anion exchange resin so that the amount of added ion exchange resin does not exceed 20-30% of the total system. Upon reaching the specified ratio of the resin is filtered off and the solution add a new portion of the anion. The filtered resin regenerate the alkaline solution. The process continues until receipt Zola, possessing the desired properties. The main disadvantages of this method are its low-tech and labor costs associated with the need to use anion-exchange resin in the form of a suspension, filter it and regenerate. Attempts to conduct the process in a continuous mode using ion-exchange columns gave no positive result due to coagulation of colloidal particles Zola in columns and deposition of particles on the resin type. The aim of the invention is to develop a simple and feasible method of obtaining a Sol of ferric hydroxide. The problem is solved by replacing the anion of the salt ions to hydroxyl, and replacement perform the ay electrolysis of a solution of ferric chloride, conducting switching the polarity of the electrodes every 5-60 seconds. The technical essence of the invention consists in carrying out the electrolysis of aqueous solutions of ferric chloride, and in the process of electrolysis carried out switching the polarity of the electrodes every 5-60 seconds. The proposed method by electrolysis to obtain a stable sols of ferric hydroxide, which greatly simplifies getting sols compared to an ion exchange method using a granular anion exchange resin and gives you the opportunity to get these sols in large quantities. The following examples disclose the essence of the proposed invention. Example 1 A solution of ferric chloride (0.5 l) concentration of 0.5 mol/l was poured into a cuvette size 15×7×10 see the solution was placed carbon electrodes and was passed through the solution current of 1 A. the polarity Switch is not performed. In the formed iron hydroxide (3) allocated to the cathode, and Sol I couldn't get. Example 2 A solution of ferric chloride (0.5 l) concentration of 0.5 mol/l was poured into a cuvette size 15×7×10 see the solution was placed carbon electrodes and was passed through a solution of the current force 1 A. switching the polarity of the electrodes was carried out with an interval 70-90 sec. The result was a partial allocation hydroxide, as is ESA (3) on the electrodes, although to a much lesser extent than without changing the polarity of the electrodes. Example 3 A solution of ferric chloride (0.5 l) concentration of 0.5 mol/l was poured into a cuvette size 15×7×10 see the solution was placed carbon electrodes and was passed through a solution of the current force 1 A. switching the polarity of the electrodes was performed with an interval of 60 seconds. In the result there was no allocation of hydroxide of iron (3) on the electrodes and was able to obtain a stable Sol. Example 4 A solution of ferric chloride (0.5 l) concentration of 0.5 mol/l was poured into a cuvette size 15×7×10 see the solution was placed carbon electrodes and was passed through a solution of the current force 1 A. switching the polarity of the electrodes was carried out with an interval 15-16 sec. In the result there was no allocation of hydroxide of iron (3) on the electrodes and was able to obtain a stable Sol. Example 5 A solution of ferric chloride (0.5 l) concentration of 0.5 mol/l was poured into a cuvette size 15×7×10 see the solution was placed carbon electrodes and was passed through a solution of the current force 1 A. switching the polarity of the electrodes was carried out with an interval of 7-8 seconds. In the result there was no allocation of hydroxide of iron (3) on the electrodes and was able to obtain a stable Sol. Example 6 A solution of ferric chloride (0.5 l) concentration of 0.5 mol/l was poured into a cuvette size 15×7×10 see RA the solution was placed carbon electrodes and was passed through the solution current of 1 A. Switching the polarity of the electrodes was carried out with an interval of 5 sec. In the result there was no allocation of hydroxide of iron (3) on the electrodes and was able to obtain a stable Sol, but the process slowed down due to the fact that a significant portion passing through a system of electric current spent in the depolarization of the electrical double layer. Visual observation of the electrolysis process for the allocation of gas at the electrodes indicate that the emission starts after about 3 seconds after switching polarity, and becomes stable after 5-6 seconds. The results obtained suggest that if you switch the polarity of the electrodes every 5-60 seconds, it is possible to obtain a stable colloidal solution of hydroxide of iron (3). Thus, the alleged invention allows to obtain sols hydroxide, iron (3) from solutions of ferric chloride is quite simple and manufacturable method is electrolysis. Literature 1. Balls FU Cryochemical synthesis of fine oxide powders using ion exchange processes. Descendin. Sciences. M.: Moscow state University, 1991, 122 S. The way to obtain a Hydrosol of ferric hydroxide, which consists in replacing the anions of the salt ions to hydroxyl, characterized in that the replacement is carried out by electrolysis of a solution of ferric chloride, etc is leading switching the polarity of the electrodes every 5-60 C.
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