硫酸钙晶须的生产工艺研究  

Production technique of calcium sulfate whisker

作　　者：杨维强[1] 

机构地区：[1]江苏金桥盐化集团有限责任公司台南盐场,江苏连云港222066

出　　处：《化工科技市场》2010年第1期11-13,22,共4页Chemical Technology Market

摘　　要：江苏省淮安地区的岩盐资源可得到硫酸钠型次饱和卤水,对其进行日晒制盐时产生大量的盐石膏(CaSO4.2H2O)和无水芒硝(Na2SO4),综合利用价值不高。研究了硫酸钠型矿卤制取硫酸钙晶须的工艺,提出先对硫酸钠型次饱和卤水进行除硫处理。处理后的清液可用于日晒制盐,CaSO4.2H2O沉淀经溶解、加热、过滤、冷却结晶转化可生产硫酸钙晶须,为硫酸钠型卤水资源的综合利用提供了一条新的技术路线。Sodium sulfate saturated bittern was obtained after well drilling water - soluble method in Huai＇an, Jiangsu. By solarization salt - making process, it can produces massive salty gypsum （ CaSO4 · 2H2O） and thenardite （ Na2SO4 ）, but its comprehensive utilization value is not high. Production technology of calcium sulfate whisker by using sodium sulfate ore halogen was researched. Firstly, sulphur removal processing of sodium sulfate saturaten bittern was made. Then, the mother liquor was used in solarization salt - making, and obataned CaSO4 · 2H2O was used in production of calcium sulfate whisker through dissolving, heating, filtrating, and cooling crystallization transformation process. It has provided a new technical route for comprehensive utilization of sodium sulfate bittern resource.

关 键 词：硫酸钠 次饱和卤水 硫酸钙晶须 

分 类 号：TQ125.14[化学工程—无机化工]