Supply activated alumina prices

The activated alumina price? № life peek into the warmth and endless hope. № 24 Tel: 13521797362 010-57193076 activated alumina ball price activated alumina pure alumina is a white amorphous powder, commonly known as bauxite, density 3.9-4.0g/cm3, melting point 2050 ° C, the boiling point of 2980 ° C, insoluble in water , alumina alpha-and gamma-two variants can be extracted from bauxite industry. Bauxite (Al2O3? H2O and Al2O3? 3H2O) is aluminum naturally occurring mineral, crushed high temperature was impregnated with a solution of sodium hydroxide, sodium aluminate solution; filter to remove the residue, cool the filtrate and hydroxide aluminum crystals was stirred for a long time, decomposition of the sodium aluminate solution will precipitate aluminum hydroxide precipitate; The precipitate was separated washed, and then calcined at a temperature of 950-1200 ° C, to obtain the alpha-alumina powder, and the mother liquor can be recycled utilized. This method was invented in 1888 by Austrian scientist Bayer (K.J.Bayer,), and still is the main method for industrial production of alumina, called the "Bayer". In the lattice of alpha-alumina, the oxygen ion is hexagonal close-packed, Al3 + is symmetrically distributed around the oxygen ion into the octahedral center Lattice Energy, the melting point, boiling point is high. The alpha-alumina is insoluble in water and acids, also known as industrial aluminoxane Built basic raw material for aluminum; also used for making a variety of refractory bricks, refractory crucible refractory tube, high temperature experimental apparatus; can also be used as abrasives , flame retardants, fillers, etc.; high purity alpha-alumina or the production of artificial corundum, synthetic ruby ??and sapphire materials; also used in the production of modern large-scale integrated circuit board base. -Alumina is aluminum hydroxide prepared by dehydration at 140-150 ° C. The low temperature environment, also called industrial activated alumina, alumina gel. Heart approximation cubic close-packed oxygen ions in its structure, Al3 + irregularly distributed among octahedral and tetrahedral voids surrounded by oxygen ions. The gamma alumina is insoluble in water, can be dissolved in acid or alkali solution, it was heated to 1200 ° C is completely converted to alpha-alumina. The gamma-alumina is a porous material, the inner surface area of ??up to hundreds of square meters per gram, the activity of the high adsorption ability. Industrial often colorless or slightly pink cylindrical particles, the pressure is good. In petroleum refining and petrochemical industry is commonly used adsorbents, catalysts and catalyst supports; in industrially transformer oil, turbine oil deacidification agent, is also used for the analysis of the colored layer; strong desiccant is neutral in the laboratory , the drying capacity of as much as phosphorus pentoxide was heated at 175 ° C or below for 6-8h after use can also be recycled to reuse. The world's alumina production by Bayer to account for more than 90% of the total output, most of the alumina used for making aluminum, less than 10% used for other purposes. Products: activated alumina adsorption properties of the catalytic activity of porous, high dispersion, large surface area alumina. Activated Alumina ball internal main crystal is divided into gamma-and χ-ρ type, their use can be divided into the adsorbent activated alumina ball, activated alumina ball desiccant and catalyst carrier of activated alumina ball. Main purpose: for a variety of gases and liquids, dry, activated alumina ball used as adsorbents, desiccants, catalysts and carriers in the petroleum, fertilizer, chemical reaction process. All varieties of activated alumina: gamma-type alumina catalyst carrier, and extremely stable catalyst carrier itself can also be used as a catalyst. χ-ρ fluoride removal agent: treated drinking water to defluorinated the fluorine absorption capacity: 2.1mg / g. χ-ρ-γ of hydrogen peroxide dedicated: for the purification of hydrogen peroxide working solution. χ-ρ net oil: for transformer oil decolorization and purification. Coagulating sedimentation method fluoride removal, the use of aluminum salt coagulant dosage with raw water fluorine content, temperature and pH changes, different aluminum salts with a water dosage should be determined by experiments. 2 water temperature affect coagulation and sedimentation effect of fluoride removal, the higher the temperature, the longer settling time; the coagulant dosing will cause changes in the pH value, the pH value changes affect the precipitation effect of fluoride removal, pH value of 6.5 ~ 7.5, the effect of sedimentation best. 3 domestic coagulating sedimentation method fluoride removal intermittent precipitation. 9.12 electrodialysis 9.12.1 electrodialysis desalination of brackish water and fluoride removal is the use of the role of DC overcast, cation exchange membrane water overcast, cation selective permeability completed. The electrodialysis costs and energy consumption of the original salinity of the water is proportional to the amount of fluoride, the provisions of this Article salt content of less than 5000 mg / L of brackish water desalination, and the fluorine content of less than 12 mg / L water fluoride removal by electrodialysis, the range is exceeded by the number of units increase electrodialysis, series, number of segments and the number of membrane can still be achieved, but to determine the technical and economic comparison. Electrodialysis can only 9.12.3 removal of part of the salt ions, silicate in the water and the dissociation of organic matter is difficult to remove, the smaller the mobility of the carbonate, the removal of bromine is also small, so enter the electrodialysis water desalination ion content and the bacterial indicators, other water quality indicators shall comply with the requirements of GB5749; electrodialysis ion exchange membrane active groups, bacteria, algae, organic matter, iron, manganese, sensitive, irreversible reaction in the film would be formed ; turbidity and can block the separator water distribution area should be carried out in order to avoid the electrodialysis equipment congestion and pollution of the film, into the electrodialysis water pretreatment. 9.12.4 security to protect the ion exchange membrane, so make the provisions of this article. 9.12.5 drinking water to maintain a reasonable salt and fluorine content, enabling the body needs specified in GB5749 in total dissolved solids should not exceed 1000 mg / L fluoride content of not more than 1.0 mg / L, and therefore make the provisions of this article. The 9.12.6 electrodialyzer model, flow, series, number of segments and the number of membrane, the main parameters of the electrodialysis, so make the provisions of this article. 9.12.7 ion-exchange membrane, partitions, every network and electrode are the main components of the electrodialysis, so make the provisions of this article. 9.12.8 To avoid electrodialysis internal fouling, extend the service life and pickling cycle, electrodialysis should be inverted pole device frequently; to avoid manually inverted pole can not be strictly long-term operation on time, so should be automatic and frequent pole device . 9.12.9 water of electrodialyser include fresh water, concentrate and electrolyte water pressure to keep the shades of room on both sides of the membrane concentrated water flow should be the same as the freshwater flow, water-saving slightly lower than the freshwater flow; polar water flow, waste too high, too low to affect the life of the membrane. Pure alumina, active alumina ball price of activated alumina is white, amorphous powder, commonly known as alumina, 3.9-4.0g/cm3 density, melting point 2050 ° C, the boiling point of 2980 ° C, insoluble in water, mainly alpha alumina type and gamma-two variants, the industry can be extracted from bauxite. Bauxite (Al2O3? H2O and Al2O3? 3H2O) is aluminum naturally occurring mineral, crushed high temperature was impregnated with a solution of sodium hydroxide, sodium aluminate solution; filter to remove the residue, cool the filtrate and hydroxide aluminum crystals was stirred for a long time, decomposition of the sodium aluminate solution will precipitate aluminum hydroxide precipitate; The precipitate was separated washed, and then calcined at a temperature of 950-1200 ° C, to obtain the alpha-alumina powder, and the mother liquor can be recycled utilized. This method was invented in 1888 by Austrian scientist Bayer (K.J.Bayer,), and still is the main method for industrial production of alumina, called the "Bayer". In the lattice of alpha-alumina, the oxygen ion is hexagonal close-packed, Al3 + is symmetrically distributed around the oxygen ion into the octahedral center Lattice Energy, the melting point, boiling point is high. The alpha-alumina is insoluble in water and acids, also known as industrial aluminoxane Built basic raw material for aluminum; also used for making a variety of refractory bricks, refractory crucible refractory tube, high temperature experimental apparatus; can also be used as abrasives , flame retardants, fillers, etc.; high purity alpha-alumina or the production of artificial corundum, synthetic ruby ??and sapphire materials; also used in the production of modern large-scale integrated circuit board base. -Alumina is aluminum hydroxide prepared by dehydration at 140-150 ° C. The low temperature environment, also called industrial activated alumina, alumina gel. Heart approximation cubic close-packed oxygen ions in its structure, Al3 + irregularly distributed among octahedral and tetrahedral voids surrounded by oxygen ions. The gamma alumina is insoluble in water, can be dissolved in acid or alkali solution, it was heated to 1200 ° C is completely converted to alpha-alumina. The gamma-alumina is a porous material, the inner surface area of ??up to hundreds of square meters per gram, the activity of the high adsorption ability. Industrial often colorless or slightly pink cylindrical particles, the pressure is good. In petroleum refining and petrochemical industry is commonly used adsorbents, catalysts and catalyst supports; in industrially transformer oil, turbine oil deacidification agent, is also used for the analysis of the colored layer; strong desiccant is neutral in the laboratory , the drying capacity of as much as phosphorus pentoxide was heated at 175 ° C or below for 6-8h after use can also be recycled to reuse. The world's alumina production by Bayer to account for more than 90% of the total output, most of the alumina used for making aluminum, less than 10% used for other purposes. Products: activated alumina adsorption properties of the catalytic activity of porous, high dispersion, large surface area alumina. Activated Alumina ball internal main crystal is divided into gamma-and χ-ρ type, their use can be divided into the adsorbent activated alumina ball, activated alumina ball desiccant and catalyst carrier of activated alumina ball. Main purpose: for a variety of gases and liquids, dry, activated alumina ball used as adsorbents, desiccants, catalysts and carriers in the petroleum, fertilizer, chemical reaction process. All varieties of activated alumina: gamma-type alumina catalyst carrier, and extremely stable catalyst carrier itself can also be used as a catalyst. χ-ρ fluoride removal agent: treated drinking water to defluorinated the fluorine absorption capacity: 2.1mg / g. χ-ρ-γ of hydrogen peroxide dedicated: for the purification of hydrogen peroxide working solution. χ-ρ net oil: for transformer oil decolorization and purification. Coagulating sedimentation method fluoride removal, the use of aluminum salt coagulant dosage with raw water fluorine content, temperature and pH changes, different aluminum salts with a water dosage should be determined by experiments. 2 water temperature affect coagulation and sedimentation effect of fluoride removal, the higher the temperature, the longer settling time; the coagulant dosing will cause changes in the pH value, the pH value changes affect the precipitation effect of fluoride removal, pH value of 6.5 ~ 7.5, the effect of sedimentation best. 3 domestic coagulating sedimentation method fluoride removal intermittent precipitation. 9.12 electrodialysis 9.12.1 electrodialysis desalination of brackish water and fluoride removal is the use of the role of DC overcast, cation exchange membrane water overcast, cation selective permeability completed. The electrodialysis costs and energy consumption of the original salinity of the water is proportional to the amount of fluoride, the provisions of this Article salt content of less than 5000 mg / L of brackish water desalination, and the fluorine content of less than 12 mg / L water fluoride removal by electrodialysis, the range is exceeded by the number of units increase electrodialysis, series, number of segments and the number of membrane can still be achieved, but to determine the technical and economic comparison. Electrodialysis can only 9.12.3 removal of part of the salt ions, silicate in the water and the dissociation of organic matter is difficult to remove, the smaller the mobility of the carbonate, the removal of bromine is also small, so enter the electrodialysis water desalination ion content and the bacterial indicators, other water quality indicators shall comply with the requirements of GB5749; electrodialysis ion exchange membrane active groups, bacteria, algae, organic matter, iron, manganese, sensitive, irreversible reaction in the film would be formed ; turbidity and can block the separator water distribution area should be carried out in order to avoid the electrodialysis equipment congestion and pollution of the film, into the electrodialysis water pretreatment. 9.12.4 security to protect the ion exchange membrane, so make the provisions of this article. 9.12.5 drinking water to maintain a reasonable salt and fluorine content, enabling the body needs specified in GB5749 in total dissolved solids should not exceed 1000 mg / L fluoride content of not more than 1.0 mg / L, and therefore make the provisions of this article. The 9.12.6 electrodialyzer model, flow, series, number of segments and the number of membrane, the main parameters of the electrodialysis, so make the provisions of this article. 9.12.7 ion-exchange membrane, partitions, every network and electrode are the main components of the electrodialysis, so make the provisions of this article. 9.12.8 To avoid electrodialysis internal fouling, extend the service life and pickling cycle, electrodialysis should be inverted pole device frequently; to avoid manually inverted pole can not be strictly long-term operation on time, so should be automatic and frequent pole device . 9.12.9 water of electrodialyser include fresh water, concentrate and electrolyte water pressure to keep the shades of room on both sides of the membrane concentrated water flow should be the same as the freshwater flow, water-saving slightly lower than the freshwater flow; polar water flow, waste too high, too low to affect the life of the membrane.