用双功能性离子液体[A336][P204]从硫酸体系中萃取钼  

Solvent Extraction of Mo From Sulphuric Acid Solution by Bifunctional Ionic Liquid[A336][P204]

作　　者：刘泉[1] 陆明杰 汪慧刚 于立策 徐红娟 彭逸超 钱铖镕 杨华玲[1] LIU Quan;LU Mingjie;WANG Huigang;YU Lice;XU Hongjuan;PENG Yichao;QIAN Chengrong;YANG Hualing(Chemistry and Chemical Engineering,Nantong University,Nantong 226019)

机构地区：[1]南通大学化学化工学院,江苏南通226019

出　　处：《湿法冶金》2020年第6期507-510,共4页Hydrometallurgy of China

基　　金：国家自然科学青年科学基金资助项目(21701089,21401110);大学生创新项目(201910304132H)。

摘　　要：研究了以正庚烷为稀释剂、双功能性离子液体[A336][P204]为萃取剂萃取分离钼。结果表明:钼萃取率与萃取时间、水相酸度、盐析剂Na2SO4浓度及萃取剂浓度有关;与传统的P204和P204+TBP体系对比,双功能性离子液体[A336][P204]对钼的萃取率更高,反萃取效果更好;[A336][P204]在硫酸体系中萃取钼的最佳条件为:萃取时间15 min,水相pH=2.12,盐析剂Na2SO4浓度0.07 mol/L,[A336][P204]浓度0.1 mol/L,此条件下,钼萃取率达97%,萃取效果较好。Solvent extraction of molybdenum from sulphuric acid solution using n-heptane as diluent and bifunctional ionic liquid[A336][P204]as extractant was investigated.The results show that the extraction of molybdenum is related to factors such as the extraction time,solution pH,Na2SO4concentration and extractant concentration.By comparison with the traditional P204 and P204+TBP extraction systems,the ionic liquid[A336][P204]has the higher extraction and stripping rate under the same conditions.Under the optimum conditions of extraction time of 15 min,solution pH of 2.12,Na2SO4 concentration of 0.07 mol/L and[A336][P204]concentration of 0.10 mol/L,extraction rate of molybdenum is 97%.The extraction effect is good.

关 键 词：双功能性离子液体 [A336][P204] 钼 溶剂萃取 

分 类 号：TF804.2[冶金工程—有色金属冶金]