摘要
微乳液萃取技术是一种新型的分离手段,而日益受到学者关注,本课题组拟以高效的二(2-乙基己基磷酸)(D_2EHPA)为萃取剂,采用微如液萃取技术来提取Na H_2PO_4溶液中的Fe^(3+)杂质,本文通过一系列实验探究合适的微乳液组成体系,首先对以OP-10为表面活性剂,异戊醇为助表面活性剂,2mol·L^(-1)HCl为内相体系的饱和溶水量进行研究,初步确定微乳液体系的范围,再对在50℃下D_2EHPA为萃取剂,磺化煤油为助剂,OP-10为表面活性剂,异戊醇为助表面活性剂,2mol·L^(-1)HCl为内相溶液的微乳液拟三元体系相图进行研究,研究结果对微乳液萃取的应用具有重要的理论指导意义。
Microemulsion extraction is a new method for separating solutes from aqueous solution. The effective two（2- ethylhexyl phosphate）（D-2EHPA）is empolyed as extractant. The abilities to extract Fe^3＋ from sodium dihydrogen phosphate（Na H2PO4）solution with the separation methods of micro emulsion extraction has been considering in our research, through a series of experiments on microemulsion the appropriate composition of the fluid system. First of all, the saturated water solubility were studied to preliminary determine the scope of microemulsion system by taking OP-10 as surfactant, isoamyl alcohol as cosurfactant, 2mol·L^-1HCl as the internal phase system. Then pseudoternary phase diagram of the system was studied by employing D2EHPA as extractant, sulfonated kerosene as additives, OP-10 as surfactant, isoamyl alcohol as cosurfactant, 2mol·L^-1HCl microemulsion solution as the internal phase. The research results have important theoretical significance for application of microemulsion extraction.
出处
《化学工程师》
CAS
2017年第2期15-17,共3页
Chemical Engineer
基金
四川省基础应用研究项目(2014JY0079)
关键词
微乳液萃取
饱和溶水量
拟三元体系相图
microemulsion extraction
saturated water solubility
pseudoternary phase diagram
