新型螯合剂乙二胺二邻苯基乙酸钠的合成及应用  

Synthesis and Application of Ethy Diaminedhephen Acetic-Na

作　　者：于兴凯 卫杰刚 YU Xingkai;WEI Jiegang(Shanghai Xihe Fine Chemical Co.,Ltd.,Shanghai 201620,China)

机构地区：[1]上海喜赫精细化工有限公司,上海201620

出　　处：《化工技术与开发》2023年第1期63-66,共4页Technology & Development of Chemical Industry

摘　　要：乙二胺二邻苯基乙酸钠(EDDHA-Na)是性能卓越的无磷螯合分散剂,绿色环保可降解。其化学结构中有2个羧基和多个羟基,因此表现出优异的螯合性能,能与多种金属离子形成螯合环。EDDHA-Na在碱性及高温的条件下具有优异的螯合稳定性,其螯合物的稳定常数高于目前常用的EDTA、DTPA、柠檬酸钠等螯合剂,尤其是对铁离子和锰离子的螯合性能较好,可广泛应用于民用与工业清洗、油田开采、印染与造纸等诸多领域。Ethy diaminedhephen acetic-Na(EDDHA-Na) was an excellent phosphorus-free sequestering dispersant, which was environmentally friendly and degradable without phosphorus. EDDHA-Na had two carboxyl groups and several hydroxyl groups, the structural formula had excellent chelating property and could form a chelating ring with a plurality of metal ions. EDDHA-Na had excellent chelating stability under alkaline and high temperature conditions. The stability constants of EDDHA-Na were higher than EDTA, DTPA and sodium citrate, and was widely used in civil and industrial cleaning, oil field exploitation, printing and dyeing,paper making and other fields.

关 键 词：螯合分散剂 无磷 EDDHA-Na 金属离子 络合常数 

分 类 号：TQ314.255[化学工程—高聚物工业]