摘要
研究了用正己烷-环己醇、异辛烷-正己醇作萃取溶剂,铬天青S作萃取剂,加入N-氯代十六烷基吡啶、十六烷基三甲基溴化铵等阳离子表面活性剂,在HNO3和HCl介质中Fe(Ⅲ),La(Ⅲ),Cu(Ⅱ)和Pd(Ⅱ)等金属离子的反相微胶团萃取行为.讨论了不同浓度的电解质溶液和酸溶液对有机相中金属离子进行反萃取的影响,实现了Fe(Ⅲ)-Cu(Ⅱ)。
The formation conditions of reverse micelles in the mixed extractive solvents(octane/cyclohexanol,isooctane/hexanol)is studied in the prexents of various cation surfactants(CPC,CTAB).The extraction behavior of Fe(Ⅲ), La(Ⅲ), Cu(Ⅱ) and Pd(Ⅱ) by reverse micelles in the HCl and HNO 3 medium is obtained with chromazurol S as extractant.The effect of various electrolyte solutions and acid solutions on the reverse extraction of metal ions from the organic phase is discussed.The system is used in the quantitative extraction and separation between metal ions Fe(Ⅲ) Cu(Ⅱ) and La(Ⅲ) Cu(Ⅱ).
出处
《华中师范大学学报(自然科学版)》
CAS
CSCD
北大核心
1999年第1期90-94,共5页
Journal of Central China Normal University:Natural Sciences
基金
国家自然科学基金