摘要
研究了聚乙烯吡咯啉酮水溶液在(NH_4)_2SO_4存在下分成液-液或液-固两相的条件和水溶性整合剂及金属离子整合物在该体系两相间的分配行为。实现了Zr(Ⅳ)-La(Ⅲ)的定量萃取分离,初步探讨了聚乙烯吡咯啉酮相的萃取机理。
The aqueous solution of polyvinyl pyrrodidone can be separated into two liquid or a liquid and a solid phases in the presence of (NH4)2SO4. The conditions of phase separation were found. The distribution behaviour of water-soluble ligands and their metal chelates between the two phases were investigated. The quantitative extraction separation of Zr(Ⅳ )-La( Ⅲ ) was carried out. The extraction machanism for PVP phases was also studied.
出处
《高等学校化学学报》
SCIE
EI
CAS
CSCD
北大核心
1990年第4期336-339,共4页
Chemical Journal of Chinese Universities
关键词
锆
镧
萃取
PVP
Extraction, Poly vinyl pyrrodidone, Zirconiun, Lanthanum
