The calcium chloride supported on high surface area support, can greatly increase the contact area of ??the calcium chloride and ammonia gas. Existing studies show that the composite adsorbent calcium chloride supported on zeolite prepared by adsorption and better stability than single adsorbent. 1, calcium chloride dihydrate (dehydration) Method: edible calcium chloride dihydrate at 200 ~ 300 ℃ dried dehydrated anhydrous calcium chloride 98, prepared edible anhydrous calcium chloride products. The chemical reaction equation: CaCl2 · 2H2O - [260 ℃] → CaCl2 + 2H2O to the neutral solution of calcium chloride, anhydrous calcium chloride, may be spray-drying tower, at 300 ℃ was spray-dried under a stream of hot air dehydration, to obtain no water, powdered calcium chloride products. _ Haixu chemical anhydrous calcium chloride (certified) _ anhydrous calcium provided by Shouguang City Chemical Co. Haixu. Shouguang Haixu Chemical Co. (www.haixuchem.com) Shandong Weifang, a leader in the processing of chemical products, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. In Haixu Chemical leadership with the staff warmly welcome all inquiries negotiations to create a better future Haixu chemicals.