摘要
本文研究了ＰＥＧ（聚乙二醇）－２０００－钍试剂－（ＮＨ＿４）＿２ＳＯ＿４体系对Ｆｅ（Ⅲ）、Ａｌ（Ⅲ）、Ｎｉ（Ⅱ）的非有机溶剂萃取行为。指出在ｐＨ为３．５－６．５（ＮａＡｃ－ＨＡｃ）的水溶液中，有（ＮＨ＿４）＿２ＳＯ＿４存在下，Ｆｅ（Ⅲ）、Ａｌ（Ⅲ）可被ＰＥＧ－２０００相几乎完全萃取，而Ｎｉ（Ⅱ）则基本上不被萃取。从而获得了Ｎｉ（Ⅱ）与Ｆｅ（Ⅲ）、Ａｌ（Ⅲ）混合离子的定量分离。
In PEG-2000-Thorin- (NH_4)_2SO_4 system the liquid-liquid extraction behaviour of Fe (Ⅲ),Al(Ⅲ) ,Ni(Ⅲ) without usual organic solvents was investigated , we found that Fe(Ⅲ),Al(Ⅲ)were almost extracted by PEG-2000 phase while Ni(Ⅱ)was not extracted in the water solutions of HAc-NaAc (pH3. 5-6. 5) and (NH_4)_2SO_4,so that Ni(Ⅱ)was quantitative separated from mixed solutions of Fe(Ⅲ),Al(Ⅲ),Ni(Ⅱ) ions .
出处
《光谱实验室》
CAS
CSCD
1996年第3期13-16,共4页
Chinese Journal of Spectroscopy Laboratory
关键词
萃取
聚乙二醇
钍试剂
铣
铝
镍
Extraction,Polyethylene Glycol,Thorin Reagent.
