非稀土杂质对环烷酸萃取稀土过程的乳化形成作用及消除  

Effects of Non-Rare Earths Impurities on the Emulsifications During Extraction of Rare Earths by Naphthenic Acid and the Removal of Emulsion Phase

作　　者：李颖毅[1] 胡建东[2] 

机构地区：[1]南昌大学材料科学与工程学院,南昌330031 [2]南昌大学理学院,南昌330031

出　　处：《应用化学》2010年第12期1481-1482,共2页Chinese Journal of Applied Chemistry

基　　金：教育部高校骨干青年教师资助项目(GG-430-10403-1970);南昌大学"211"重点项目资助

摘　　要：研究了稀土萃取过程中经常存在的Fe、Si、Al杂质对环烷酸萃取提纯钇工艺中乳化形成的影响,发现杂质Si对萃取过程的乳化影响较大。提出了料液的不同除杂方法,其中氧化吸附沉淀法能除去料液中的大部分Si,从而可消除萃取过程中的乳化现象。The effects of non-rare earths impurities,such as Fe,Si,Al on the formation of emulsion phase were studied in the extraction of yttrium with naphthenic acid,and Si was found to be most significant one.Different solutions for removing the feed solutions were provided and an oxidation absorption precipitation method was proven to be the most effective approach,which can remove the emulsion phase in the extraction of rare earths.

关 键 词：硅 稀土 萃取 氧化吸附 乳化 

分 类 号：O632[理学—高分子化学]