盐湖复杂卤水离子膜电解双碱法高纯单水氢氧化锂制备过程中富氧氯气平衡应用探讨  

Discussion on application of oxygen-enriched chlorine gas balance in preparation of high-purity lithium hydroxide monohydrate by salt lake complex brine ion membrane electrolysis

作　　者：何永平 王冀锋 HE Yongping;WANG Jifeng(Qinghai Yanhu Fozhao Lanke Lithium Industry Co.Ltd.,Translation,Geermu 816000,Qinghai,China)

机构地区：[1]青海盐湖佛照蓝科锂业股份有限公司

出　　处：《计算机与应用化学》2019年第5期519-521,共3页Computers and Applied Chemistry

摘　　要：本文讨论了盐湖卤水离子膜电解生产单水氢氧化锂过程中产生富氧氯气的平衡应用,富氧氯气用于生产S-PVC、液氯过程中的危险性、经济性、产品品质成为了本成套工艺的技术瓶颈。通过电解槽阳极液加酸、变压吸附法氯气提纯、富氧氯气与氢气直接合成氯化氢,通过三种工艺方法的安全性、经济性分析比较,结论得出一种最佳的富氧氯气平衡应用工艺技术,即控制电解槽适当的加酸提高氯气纯度Cl2>93%V/V),再结合方案二就可实现安全、经济、高效的富氧氯气平衡应用,实现了整套工艺的清洁生产。This article discussesSalt lake brine ion membrane electrolysis productionIn the process of lithium hydroxide in single water Balanced Application of Oxygen Rich Chlorine, Oxygen rich chlorine gas used in production S-PVC, Risk in Liquid Chlorine Process, economic efficiency、Product quality has become the technical bottleneck of this set of process. Addition of acid through the anode Chamber of the cell、Chlorine purification by temperature change adsorption、Oxygen rich chlorine and hydrogen directly synthesize hydrogen chloride,Safety through three processes、Economic analysis and comparison,Conclusion An optimal balance technology of oxygenrich chlorine gas is obtained,That is, Control the proper addition of acid to the electrolyze to increase the purity of chlorine gas(Cl2>93%(V/V),In combination with plan Ⅱ, we can achieve a safe, economical and efficient balanced application of oxygen-rich chlorine gas,To achieve cleaner production of the whole process.

关 键 词：盐湖卤水 离子膜电解 氢氧化锂 富氧氯气 

分 类 号：TS312[轻工技术与工程] TQ151[化学工程—电化学工业]