铟的丙醇水溶液绿色析相萃取分离  

Green Extraction of Indium in 1-Propanol Aqueous Solution by Phase Separation

作　　者：司学芝[1] 张秀兰[2] 马万山[2] 

机构地区：[1]河南工业大学化学化工学院,河南郑州450052 [2]信阳师范学院化学化工学院,河南信阳464000

出　　处：《化学世界》2014年第5期271-273,共3页Chemical World

基　　金：河南省教育厅自然科学研究计划项目(2006150023)

摘　　要：研究了铟的丙醇水溶液绿色析相萃取分离的行为及与一些金属离子分离的条件。结果表明,NaCl能使丙醇水溶液分成两相,在分相过程中,In(Ⅲ)与KSCN生成的In(SCN)-4与质子化丙醇C3H7OH+2形成的缔合物[In(SCN)-4][C3H7OH+2]能被丙醇相完全萃取。当溶液中丙醇、KSCN和NaCl的浓度分别为30%(V/V),8.0×10-3 mol/L和0.16g/mL时,In(Ⅲ)的萃取率达到97.4%以上,Cu(Ⅱ)、Ni(Ⅱ)、Cd(Ⅱ)、Cr(Ⅲ)、Fe(Ⅱ)、V(Ⅴ)、Mg(Ⅱ)、Ag(Ⅰ)和Ce(Ⅲ)基本不被萃取,实现了In(Ⅲ)与上述金属离子的分离。对合成水样的萃取分离和测定,效果良好。The behavior and conditions of green extraction separation of In（Ⅲ）from other metal ions in 1-propanol aqueous solution with phase separation method were studied.The results showed that the 1-propanol aqueous solution could be well divided into two phases in the presence of NaCl.The associated[In（SCN）-4][C3H7OH＋ 2]formed by C3H7OH＋ 2and In（SCN）-4（combined from In（Ⅲ）and KSCN）could be completely extracted during this process.In（Ⅲ）could be quantiatively separated from Cu（Ⅱ）,Ni（Ⅱ）, Cd（Ⅱ）,Cr（Ⅲ）,Fe（Ⅱ）,V（Ⅴ）,Mg（Ⅱ）,Ag（Ⅰ）and Ce（Ⅲ）by extraction,and the extraction rate of In（Ⅲ）was over 97.4%,when the concentrations of 1-propanol,KSCN and NaCl in solution were 30%（V/V）,8.0×10^3 mol/L and 0.16g/mL,respectively.The extraction separation and determination of In（Ⅲ）in the sample of synthetic water gave satisfactory results.

关 键 词：铟 丙醇 KSCN 萃取分离 

分 类 号：O652.62[理学—分析化学]