Poly aluminum chloride raw materials are aluminum hydroxide, calcium powder, bauxite, hydrochloric acid and so on. Polyaluminum chloride production methods: a, aluminum ash hydrochloric acid method of aluminum ash (the main component of alumina and aluminum fishing) by adding a predetermined ratio of pre-added water reactor, stirring slowly hydrochloric acid was added to polycondensation Reaction, the polymerization of aging to pH 4.2 ~ 4.5, the relative density of the solution is about 1.2 for settlement, to give liquid polyaluminum chloride. Dilute the liquid product, and evaporate and concentrate to obtain the finished product of solid polyaluminum chloride; b, boil pyrolysis method, the crystalline aluminum chloride is boiled pyrolyzed at 170 DEG C, the hydrogen chloride released by water is made into 20% hydrochloric acid and recovered by water. Then add water at 60 ° C above curing polymerization, and then cured, dried, crushed to prepare a solid PAC product. PAC PAC use a, urban water supply and drainage purification: river water, reservoir water, groundwater. b, industrial water purification. c, urban sewage treatment. d, industrial waste water and waste recycling of useful substances to promote coal washing wastewater sedimentation, starch manufacturing starch recovery. E, all kinds of industrial wastewater treatment: printing and dyeing wastewater, leather waste water, fluorine-containing wastewater, heavy metal wastewater, oily wastewater, papermaking wastewater, coal washing wastewater, mining waste water, brewing wastewater, metallurgical wastewater, meat processing wastewater f, sewage treatment. g, paper sizing. H, refined sugar. i, casting molding. j, cloth anti-wrinkle. k, catalyst support. l, pharmaceutical refining m, quick-setting cement. n, cosmetics raw materials Storage and transportation conditions: 1, transportation precautions: During transport to prevent rain and sun exposure, should prevent deliquescence. Handling and unloading should be handled with care, to prevent damage to packaging; 2, This product is prohibited to be mixed with toxic materials, transport and storage, the product should be stored indoors, dry, ventilated, cool place, and not damp. 3, be careful handling when loading and unloading, storage of solid products for one year. Usage: a, before use, according to a certain concentration (10-30%) into the soluble alum pool, tap into the mixing water to fully hydrolyzed, allowed to stand until a reddish-brown liquid, and then diluted with water to the desired concentration dosing coagulation . Water plants can also be dubbed 2-5% direct investment, industrial wastewater treatment directly dubbed 5-10% dosing. b, to determine the dosage, according to the nature of the raw water through the production commissioning or beaker experiment as alum to form the appropriate amount, the waterworks can use the original dose of other drugs as a reference, under the same conditions the product with solid polychlorinated The amount of aluminum is roughly the same amount of solid aluminum sulfate 1 / 3-1 / 4. If the original is a liquid product, according to the corresponding drug concentration calculation discretion. Approximately by weight ratio of 1: 3. c, when used, the prepared solution is pumped into the metering tank, dosing liquid by measuring and coagulation of raw water. d, under normal circumstances the day of the preparation of the day use, dispensing need tap water, a slight precipitate is a normal phenomenon e, according to the original production by: solid: water = 1/5 or so, first mixed and then diluted with water to a content of 2 ~ 3% solution can be. f, production by: solid: water = 1/5 or so, first mixed and dissolved, add water diluted to a content of 2 to 3% of the solution can be.