钙法脱硝在烧碱生产中的应用  

Application of Sulfate- removing by Calcium Chloride in the Production of Caustic Soda

作　　者：宋茜茜 姚益荣[2] 蒋海斌 刘凯 

机构地区：[1]江苏省制盐工业研究所,江苏淮安223200 [2]江苏井神盐化股份有限公司热电分公司,江苏淮安223200

出　　处：《盐业与化工》2015年第5期1-4,共4页Jounral of Salt and Chemical Industry

摘　　要：文章简要介绍了烧碱行业中常用的脱硝技术,并对钙法脱硝在烧碱生产中的应用进行了分析。经过工艺上的优化和设备上的改进,钙法脱硝过程中可以将硫酸钙沉淀和盐水彻底分离,解决了设备结垢等问题,提高了脱硝效果。并且氯化钙原料使用液体钙,可大大降低成本。钙法脱硝有望在烧碱行业中的得到推广应用。It was introduced the sulfate - removing technology in the production of caustic soda and primarily analyzed the technology of sulfate anion removal by Liquid calcium chloride. Through the process optimization and the upgrading of the equipment, the CaS04 precipitate could be completely extracted from the brine and the fouling of equipment and pipe was resolved, which increased the effect of denitration. If the resource of calcium chloride used liquid calcium chloride, production costs could significantly be reduced. Sulfate anion removal by calcium method will be prospectively applied in the production of caustic soda.

关 键 词：钙法脱硝 烧碱 液体钙 

分 类 号：TQ114.261[化学工程—无机化工]