(1. 昆明貴金屬研究所， 昆明 650221；
2. 北京大學 分子與化學工程學院，
國家稀土材料化學重點實驗室， 北京 100871)
摘 要: 研究了陽離子型表面活性劑-改性劑-惰性稀釋劑-Au(CN)2-萃金體系中各種改性劑對萃取金性能的影響。試驗結(jié)果表明：改性劑對萃金的助萃效果與它們的堿性強弱順序一致，即與它們的給電子能力的順序一致，為TAPO>TBP>MIBK>ROH>BIOSO。 改性劑的加入避免了體系中第三相的形成，使得Au(CN)2-萃入有機相。
關(guān)鍵字: 改性劑； 表面活性劑； 溶劑萃取； Au(CN)2-
extraction by CTMAB
GAO Hong-cheng2, CUI Ning１, YU Jian-min１
（1. Kunming Institute of Precious Metals, Kunming 650221, P.R.China;
2. State Key Laboratory Rare Earth Materials Chemistry and Applications,
College of Chemistry and Molecular Engineering, Beijing University, Beijing 100871, P.R.China）
Abstract:The effects of modifiers on gold extraction have been investigated systematically for cation surfactant-modifier-diluent Au(CN)2- extraction system. The results show that the gold assistant-extraction effects of the modifiers accord with their basicity order, that is the order of their forwarding electrons: TAPO>TBP>MIBK>ROH>BIOSO. The addition of modifier into the extraction system prevents the formation of the third phase in the extraction system.
Key words: modifier; surfactant; solvent extraction; Au (CN)2-
