摘要
研究了聚氧乙烯十二烷基醚(PLE)水溶液在无机盐存在下的分相条件;讨论了偶氮氯膦(CPA)等螯合剂及U(Ⅵ)、La(Ⅲ)、Zr(Ⅳ)、Sc(Ⅲ)等金属离子的螯合物在PLE固相中的萃取行为。用控制酸度与加掩蔽剂的方法实现了U(Ⅵ)—La(Ⅲ)、U(Ⅶ)—Zr(Ⅳ)的定量萃取分离。
The aqueous solution of polyoxyethylene lauryl ether (PLE) can be separated into liquid and solid phases in the presence of various salts. The phase separation conditions were found. The distribution behaviour of chlorophosphonazo (CPA) Ⅲ and other water-soluble ligands 'between two phases was examined. The extraction behaviour of U ( Ⅵ ) , La ( Ⅲ ) , Zr ( Ⅳ ) and Sc (Ⅲ) in the PLE solid phase was studied by using CPA II as extratant. The quantitative extraction separation of U ( Ⅵ ) -La ( Ⅲ) and U ( Ⅵ ) -Zr ( Ⅳ) was achieved by controlling the solution acidity and adding a masking agent.
出处
《冶金分析》
CAS
CSCD
北大核心
1992年第4期28-30,共3页
Metallurgical Analysis
基金
国家自然科学基金资助课题
关键词
萃取体系
掩蔽剂
PLE
Polyoxyethylene laufyl ether, Extraction system, Masking agent
