摘要
采用中空纤维支撑液膜(SLM)技术,模拟酸性铟渣浸出液,以磷酸二异辛酯(P204)、磺化煤油体积比3:7为液膜萃取相,盐酸溶液为反萃相,研究了单组件膜萃取系统、双膜组件萃取-反萃系统、双膜组件萃取-超滤系统对酸性浸出液中In的提取与分离效率。结果表明,双膜组件萃取-超滤技术可同时实现浸出液中In的提取与反萃液中In的高纯度富集,浸出液中In的提取率可达90%以上,反萃液中In含量可达浸出液中In含量的70%,In的质量分数高于90%。
The extraction and separation efficiency in the acidic leach solution by single-module extraction system, two-modules extraction and stripping system, two-modules extraction and ultra-filtration system, using hollow fiber supported liquid membrane （FHSLM） processes, simulating acidic indium slag leaching solution, D2EHPA/sulfonated kerosene whose volume ratio was 3：7 as liquid membrane phase, HC1 aqueous solution as stripping phase were studied. The results showed that the two-modules extraction and ultra-filtration system can successfully separate and enrich In（Ⅲ） in the stripping solution. The extraction rate of the system from the acid leaching solution could be above 90%, In（Ⅲ） content in the stripping phase could be above 70% of its initial value in the feed. In addition, In（Ⅲ） purity in the stripping solution was higher than 90%.
出处
《水处理技术》
CAS
CSCD
北大核心
2012年第8期96-100,共5页
Technology of Water Treatment
基金
国家自然科学基金(21176188)
国家青年科学基金(201106100)
天津市重点基金课题(09JCZDJC26300)
天津市高校科技发展基金计划项目(20070613)
关键词
膜萃取与反萃
In
酸性浸出液处理
中空纤维膜
超滤
membrane extraction and stripping
In（Ⅲ）
acid leaching solution
hollow fiber membrane
ultra-filtration
