Molecular Formula | [A12(OH)m(S04)3-]n |
Storage Condition | Room Temprature |
Physical and Chemical Properties | Chemical properties of this product has two kinds of solid products and liquid products. The solid product was a white powder. The liquid product is a colorless or light yellow transparent liquid. PH value in 3.5, 5. The relative density is greater than 1.20. It has strong flocculation on fine suspended solids and colloidal particles in water. The rate of aggregation and sedimentation is fast, the dosage is small, and it is non-toxic. |
polymer
polymeric aluminum sulfate is a composite polymer, the molecular structure is large, the adsorption capacity is strong, the water purification effect is better than all the traditional inorganic water purification agent. The floc formed after the input of raw water is large, the sedimentation speed is fast, the activity is high, and The filterability is good. And the adaptability of various raw water is strong, and the influence on the pH value of water is very small (pH value 4-11). Regardless of the turbidity of raw water, the concentration of wastewater pollutants, the purification effect is remarkable. Less dosage: less corrosive to equipment and pipelines, convenient operation, small dosage, low purification cost.
polymeric aluminum sulfate is used for water purification and as a medium in the printing and dyeing of textiles. In the purification of water, the polymeric aluminum sulfate allows the coagulation of impurities, which is easier to precipitate and filter.
colloidal precipitation of aluminum hydroxide, Al(OH)3, occurs when dissolved in a large amount of neutral or slightly alkaline water. When printing cloth, aluminum hydroxide colloid makes the dye more easily attached to the plant fiber.
poly-aluminum sulfate is also used to adjust the pH of the soil, because the hydrolysis of poly-aluminum sulfate produces aluminum hydroxide while producing a small amount of dilute sulfuric acid solution.
Scope of Application
The suitable pH range of Poly aluminum sulfate is 5~9, and there is still a good flocculation turbidity removal rate at low temperature. The removal of heavy metals in wastewater, fluoride wastewater treatment effect is obvious.
The flocculation effect of Poly aluminum sulfate is better than that of aluminum sulfate, and the best economic dosage should be controlled at about 20 × 10-6,
application range
1, purification of drinking water, purified water quality to meet the national standards for drinking water.
2. It can be widely used in industrial water and urban sewage, and the Water Quality Index can reach the first grade discharge standard after treatment.
3, the purification of paper making, printing and dyeing and other industries wastewater, less consumption, decolorization effect is good, the treated water can be reused.
4, purification and treatment of lead, chromium, cadmium, sulfide and other wastewater, domestic sewage, treated water can reach the discharge standard.
5, purification treatment of flotation tailings overflow red water, the treated water can be used as industrial water.
6, the purification treatment of fluorine-containing raw water, oily wastewater, oilfield reinjection water and kerosene plant oil-water separation, the purification effect is more significant.
production method
The Process Flow includes: pulverization, salt formation, sedimentation, polymerization, ripening and drying.
bauxite (Al2O3 content 50%) was used as a raw material and pulverized to 60 mesh. Under 0.88 MPa, 145~158 deg C under the reaction with sulfuric acid for 6H. After the reaction, a precipitating agent is added to precipitate the slag, the clear liquid is separated, the OH-/Al molar ratio is adjusted, and the pH value is controlled at 3.5 to 5. After completion of the polymerization reaction, the polyaluminum sulfate liquid product is obtained by aging. It was Spray dried to give a solid product.