Calcium chloride main purposes: (a), the chemical industry and inorganic chemical raw materials and sulfate removal agent. (Two), refrigeration industry for refrigeration, cooling the solution and process gas and liquid calcium chloride plant drying medium, used in air conditioning systems. (Three), the construction industry early strength, improve concrete strength, the production of coatings coagulant. (Four), the paper industry additives and waste paper deinking. (Five), ferrous metallurgy industry as a chlorinating agent and additives. (Six), rubber latex coagulant industry. (Seven), oil drilling, drilling fluids, completion fluids anhydrous calcium chloride (CaCl2) is white or off-white solid (granular, lump or powder), slightly bitter taste, odorless dry calcium chloride, soluble in water, emit a lot of heat when dissolved in water. Has a strong hygroscopic, easily deliquescence in the air, should be confined storage. 1, made of calcium chloride dihydrate (CaCl2 · 2H2O): Hydrochloric acid (31%) and limestone powder, according to 2.2: 1 ratio into the reaction tank, reaction with stirring to produce an acidic solution of calcium chloride, into clarification tank. Milk of lime was added, the solution was adjusted pH value of 8.9 to 9, then ferric hydroxide, magnesium hydroxide precipitate. After clarification by filtration, the filtrate was moved in an evaporating dish and heated to 172 ~ 174 ℃ dihydrate calcium chloride was evaporated, crystallized, isolated after drying at 200 ~ 240 ℃ dehydrated calcium chloride, to obtain the calcium chloride dihydrate. 2. Anhydrous calcium chloride: calcium chloride dihydrate will be reheated to 260 ~ 300 ℃, dehydration, i.e., changes to the white anhydrous calcium chloride. Calcium chloride dihydrate, calcium chloride Panjin, Haixu chemical provided by Shouguang City Chemical Co. Haixu. Shouguang Haixu Chemical Co. (www.haixuchem.com) strong, credible, Weifang in Shandong chemical products processing industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Haixu chemicals into the brilliant and you work for a better future!