察尔汗盐湖卤水生产低钠盐水盐体系相图研究  

Study on Phase Diagram of Water-salt System for Producing Low Sodium Salt from Brine in Chaerhan Salt Lake

作　　者：蒲治文 应忠燕 史忠录 PU Zhiwen;YING Zhongyan;SHI Zhonglu(Management Committee of Golmud Industrial Park(Kunlun Economic and Technological Development Zone),Golmud 816000,China;Qinghai Salt Lake Magnesium Industry Co.,Ltd.,Golmud 816000,China;Qinghai Salt Lake Indus-try Co.,Ltd,Qinghai Province Salt Lake Resources Comprehensive Utilization Pri-mary Laboratory,Golmud 816000,China)

机构地区：[1]格尔木工业园(昆仑经济技术开发区)管理委员会,青海格尔木816000 [2]青海盐湖镁业有限公司,青海格尔木816000 [3]青海盐湖工业股份有限公司,青海省盐湖资源综合利用重点实验室,青海格尔木816000

出　　处：《盐科学与化工》2024年第5期15-17,20,共4页Journal of Salt Science and Chemical Industry

摘　　要：察尔汗盐湖存在氯化钾少、氯化钠多的资源特点,目前的资源开发一般主要是生产氯化钾为主的钾肥,副产物氯化钠通常堆弃在尾矿场。低钠盐作为一种含有少量氯化钾的食用盐,因其具有较强的心血管保健作用而越来越受大众的欢迎。文章以15℃条件下K^(+)、Na^(+)、Mg^(2+)//Cl^(-)-H_(2)O四元水盐体系相图作为理论分析工具,系统阐述察尔汗盐田卤水精制低钠盐的原理,并利用相图计算整个精制过程的物料平衡。Chaerhan Salt Lake has the resource characteristics of less KCl and more NaCl.At present,the main resource development is to produce potassium chloride-based potash fertil⁃izer,and the by-product NaCl is usually dumped in the tailings yard.Low sodium salt,as an ed⁃ible salt containing a small amount of KCl,is increasingly welcomed by the public because of its strong cardiovascular health care function.In this article,the phase diagram of K^(+),Na^(+),Mg^(2+)//Cl^(-)-H_(2)O quaternary water-salt system at 15℃is used as a theoretical analysis tool,and the principle of refining low sodium salt with brine in Chaerhan Salt Field is systematically expounded,and the material balance of the whole refining process is calculated by using the phase diagram.

关 键 词：察尔汗盐湖 低钠盐 相图 

分 类 号：TS311[轻工技术与工程]