【摘要】 目前世界上的磷酸工业都以湿法为主,而湿法磷酸生产的关键技术是硫酸钙的结晶。结晶的质量会影响到整个的生产工艺。本文综述了二水硫酸钙结晶过程的最新研究进展,从各个角度介绍了外部条件对硫酸钙结晶的影响,以达到对二水硫酸钙结晶的各种技术有一种比较客观综合的理解和认识,最后对未来二水硫酸钙结晶过程的研究方向作了探讨。更多还原

【Abstract】 Currently,wet-process phosphoric acid was the main method in phosphoric acid industries of the world,but the key in the wet-process method of phosphoric acid produce was the crystallization of the calcium sulfate.The crystallization quality affected the whole production craft directly.The latest research progress of the dihydrate calcium sulphate crystallization was reviewed.From a lot of aspects,the influences of exterior condition on the crystallization of the calcium sulfate was introduced,in order to obtain more objective and comprehensive understandings and comprehension of various techniques in the dihydrate calcium sulphate crystallization.The research direction of the future crystallize process of dihydrate calcium sulphate was investigated.更多还原