摘要
本文研究了ＰＥＧ２０００铬菁Ｒ（ＮＨ４）２ＳＯ４体系对Ｃｏ（Ⅱ）、Ｎｉ（Ⅱ）的非有机溶剂萃取行为。指出在ｐＨ＝５的（ＮａＡｃＨＡｃ）水溶液中，有（ＮＨ４）２ＳＯ４存在下，Ｎｉ（Ⅱ）可被ＰＥＧ相几乎完全萃取，而Ｃｏ（Ⅱ）则基本上不被萃取。从而获得了Ｃｏ（Ⅱ）与Ｎｉ（Ⅱ）混合离子的定量分离。
In PEGEriochrome cyanine R(NH4)2SO4 system the liquidliquid extraction behaviour of Co(Ⅱ) and Ni(Ⅱ) without organic solvents was investigated.We found that Ni(Ⅱ) was almost extracted by PEG phase while Co(Ⅱ) was not extracted in the water solutions of NaAcHAc(pH=5) and (NH4)2SO4.Thus Co(Ⅱ) was quantitatively separated from mixed solutions of Ni(Ⅱ) and Co(Ⅱ) ions.
出处
《光谱学与光谱分析》
SCIE
EI
CAS
CSCD
北大核心
1998年第3期381-383,共3页
Spectroscopy and Spectral Analysis
基金
煤炭部优秀青年科学基金
关键词
萃取
聚乙二醇
铬菁R
钴
镍
Extraction, Polyethylene glycol, Eriochrome cyanine R
