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The uses of calcium aluminate powder from Xintai Group in water purification agents.
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2022-11-10
Product characteristics of calcium aluminate powder for water treatment agents: The calcium aluminate powder from Xintai Group exhibits extremely high reactivity when reacting with strong inorganic bases, and this reaction can proceed even at room temperature. It releases a large amount of heat and heats up rapidly; the leaching rate of aluminum oxide can exceed 90%. Applications of Xintai Group’s calcium aluminate powder include the production of aluminum salts such as polyaluminum chloride, aluminum sulfate, and sodium aluminate. It can also be used to adjust the alkalinity level and is suitable for use in refractory and thermal insulation materials.
What are the basic data and key components of the calcium aluminate powder and bauxite used by Xintai Group in the water purification agent?
Calcium aluminate powder’s main components: aluminum oxide, active calcium, and compounds.
Calcium aluminate powder used as a water purification agent, with an aluminum oxide (Al₂O₃) content of 50-55%.
Product model: Powder, 150–200 mesh.
Product characteristics of calcium aluminate powder for water treatment agents: The calcium aluminate powder from Xintai Group exhibits extremely high reactivity when reacting with strong inorganic bases, and this reaction can proceed even at room temperature. It releases a large amount of heat and heats up rapidly; the leaching rate of aluminum oxide can exceed 90%. Applications of Xintai Group’s calcium aluminate powder: It is used in the production of aluminum salts such as polyaluminum chloride, aluminum sulfate, and sodium aluminate. It can be employed to adjust the alkalinity level and is also suitable for use in refractory and thermal insulation materials.
Calcium aluminate powder—technical index formula; related information on water purification agent, alumina: reddish-brown appearance.
Bauxite composition: Al2O3, Fe2O3, CaO
Alumina (AL2O3) content in water purification agent: 30-35%
Specification/Model: 180-300 mesh
Features: Heat-resistant, corrosion-resistant, stable quality
Main uses of aluminum alum as a water purification agent: It is used to prepare sodium cyanide by aggregating it with water purification agents.
What key products are produced by combining calcium aluminate powder with bauxite for water purification agents?
I. The raw materials for polyaluminum chloride include calcium aluminate powder, sulfuric acid, and calcined alumina cement from Xintai Group. It is primarily used in wastewater treatment. Regarding the treatment of domestic water, there are clear regulations on excessive levels of heavy metals. Therefore, whether in terms of raw materials or production processes, light-colored polyaluminum chloride is superior to dark-brown polyaluminum chloride. Light-yellow polyaluminum chloride is typically produced via rotary-drum drying or spray-drying techniques and comes in two solid forms: granular and powdered.
II. The dark-brown raw material for polyaluminum ferric chloride consists of calcium aluminate powder, sulfuric acid, bauxite, and iron powder. The production process employs a rotary dryer method and is typically used primarily in wastewater treatment. Since it contains starch, its color appears dark brown; the greater the amount of starch added, the darker the color becomes. When the starch content exceeds a certain level, this product is often referred to as polyaluminum ferric chloride. It demonstrates excellent performance in wastewater treatment.
Floculation experiments revealed that polyaluminum ferric exhibits excellent floculation performance when the basicity of the flocculant is around 75% and the pH of its aqueous solution ranges from 7 to 9. Using low-grade aluminous bauxite containing iron as the primary raw material, and adding an appropriate amount of calcium aluminate powder, we prepared the polyaluminum ferric flocculant. We conducted a systematic study on factors influencing the preparation of polyaluminum ferric, including hydrochloric acid concentration, hydrochloric acid dosage, temperature, and the amount of calcium aluminate powder used. Based on these studies, we identified the optimal conditions for preparing polyaluminum ferric. Furthermore, this flocculant was applied to the treatment of actual industrial wastewater.
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