[Chinese name] PAC (referred to as poly aluminum) [English name] Polyaluminium Chloride, abbreviated as PAC [formula] [AL2 (OH) LnCL6-n] m [technical standards] product quality meet the national standard GB15892-2003 [Product Appearance] golden yellow, khaki, brown, red granular / flake [Product Form] powdery solid liquid 1, poly (co) polymerization mechanism of aluminum chloride (co) of aluminum chloride is an inorganic polymer coagulation agent, the bridging role of hydroxyl ions and polyvalent anions produced large molecular weight, high charge-inorganic polymer treatment agent. The following formula: [AL2 (OH) nCL6-n] (n is 1-5.m ≤ 10) Basicity: B = n / 6 × 100%, its coagulation performance is as follows: strong a, colloidal substances in water electrical neutralization. b, hydrolysis products of excellent bridge suspended solids in water adsorption. c, the selective adsorption of dissolved substances. Poly (combined) of aluminum chloride in water main form of AL13O4 (OH) 247 + performance a, purified water is better than aluminum sulfate coagulant, water 15-30% lower cost compared. b, floc formation, settling velocity faster, bigger than traditional products such as aluminum sulfate processing capabilities. c, consume water alkalinity less than a variety of inorganic coagulant, thus less time to cast vote alkaline agent. d, a source of water to adapt to a range PH5.0-9.0 can gather. e, corrosion resistance, good operating conditions. f, soluble than aluminum sulfate. g, handle less water salinity increases, the system in favor of high-purity water treatment and ion exchange. h, the adaptability of the source water temperature than aluminum sulfate and other inorganic coagulant. Category A, pattern classification a, liquid PAC did not dry form, there is no dilution, handling and easy to use, relatively cheap advantages, disadvantages tanker transportation needs, the increase in unit transportation cost (per tonne of solids equivalent to 2 - 3 tons of liquid) b, after drying the solid form of aluminum chloride, with the advantages of easy transportation, without tank, diluted disadvantage is also needed to increase the intensity of the work. II. classification process a, the drum-type poly (co) aluminum chloride aluminum content in general, water insoluble matter is high, and more for sewage treatment. b, frame-poly (co-) high aluminum content of aluminum chloride, water insoluble low. treatment for wastewater treatment and drinking. c, spray drying poly (co-) high aluminum content of aluminum chloride, water insoluble low, dissolve faster and higher standards for drinking water treatment 4, poly (co-) aluminum chloride use a, urban drainage purification: Rivers water, reservoir water, groundwater b, industrial water purification c, urban sewage treatment d, industrial wastewater and waste recycling useful materials to promote recycling e settlement coal washing waste water, starch manufacturing starch, industrial wastewater Processing: printing and dyeing wastewater, leather wastewater, wastewater containing fluoride, heavy metal waste water, wastewater, wastewater, coal washing waste, mining waste, brewing wastewater, metallurgical waste, meat processing wastewater f, sewage treatment g, paper sizing h, sugar Refined i, casting j, wrinkle-free fabric k, the catalyst carrier l, refined medicine m, quick-setting cement n, cosmetic raw materials. The difference between the spray drying and drum drying PAC PAC production process: spray drying: liquid materials ---- pressure filter ---- spray tower spray drying ---- Finished drum drying: liquid raw materials ---- natural subsidence ---- drum drying ---- Finished PAC is a cationic inorganic polymer flocculants a polyol, polynuclear complex body, PAC corrosive to plumbing low; PAC is widely used for drinking water, industrial water and wastewater treatment. Technical indicators and Uses: used in the source water purification, sewage, sludge treatment, industrial, chemical wastewater treatment; quick-setting cement, casting, cosmetics, pharmaceutical refining, paper sizing, etc. How to use: When you use a product directly to the amount of investment and added to water to be treated, and strongly stirred and mixed with water evenly. 2. Specific dosage as the source of water, depending beaker coagulation tests to determine the optimal dosage. (3) The product from moisture, but can still be used after the damp, the same effect.