双卤代磺酰亚胺酸提纯工艺研究进展  

Research Progress on Purification Technology of Bis(halogenated sulfonyl)imide Acid

作　　者：洪威 李晓伟 胡涛涛 赵号洋 张勇耀[1] 吴海锋 HONG Wei;LI Xiaowei;HU Taotao;ZHAO Haoyang;ZHANG Yongyao;WU Haifeng(Zhejiang Research Institute of Chemical Industry Co.,Ltd.,Hangzhou,Zhejiang 310023,China;Sinochem Lantian Co.,Ltd.,Hangzhou,Zhejiang 310051,China)

机构地区：[1]浙江省化工研究院有限公司,浙江杭州310023 [2]中化蓝天集团有限公司,浙江杭州310051

出　　处：《浙江化工》2025年第4期1-6,共6页Zhejiang Chemical Industry

基　　金：含氟温室气体替代及控制处理国家重点实验室建设项目(2024ZY01038)。

摘　　要：双卤代磺酰亚胺酸是合成电解液添加剂双氟磺酰亚胺锂的重要中间体。为了达到下游工艺的纯度要求,双卤代磺酰亚胺酸提纯工艺的研究受到广泛关注。目前已报道的双卤代磺酰亚胺酸提纯工艺有5种,包括精馏、溶液结晶、熔融结晶、吸附分离和超临界萃取。本文概述了双卤代磺酰亚胺酸提纯工艺的研究现状,总结了各种提纯方式的优势以及存在的问题,并展望该领域未来的发展方向。Bis(halogenated sulfonyl)imide acid is an important intermediate for the synthesis of lithium bis(fluorosulfonyl)imide,an electrolyte additive.In order to meet the purity requirements of downstream processes,the research on the purification process of bis(halogenated sulfonyl)imide acid has received extensive attention.There are five reported purification processes for bis(halogenated sulfonyl)imide acid,including distillation,solution crystallization,melt crystallization,adsorption separation and supercritical fluid extraction.This paper reviews the research status of these purification processes,summarizes their advantages and existing problems,and looks forward to the future development direction of this field.

关 键 词：双卤代磺酰亚胺酸 分离提纯 精馏 结晶 吸附分离 超临界萃取 

分 类 号：TQ226.3[化学工程—有机化工]