| CTMAB萃取Au（CN2）2^—体系中盐析剂反常效应 |
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| 引用本文： | 黄昆,陈景,崔宁,吴瑾光,周维金,闫文飞. CTMAB萃取Au（CN2）2^—体系中盐析剂反常效应[J]. 中国有色金属学报, 2001, 11(3): 518-521 |
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| 作者姓名： | 黄昆 陈景 崔宁 吴瑾光 周维金 闫文飞 |
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| 作者单位： | 1. 昆明贵金属研究所,
2. 北京大学 |
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| 基金项目： | 国家自然科学基金资助项目(29876016);云南省院校合作基金资助项目(B9805K0 |
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| 摘 要： | 研究了阳离子表面活性剂－萃取剂－惰性稀释剂－Au(CN)2^-体系萃金过程中盐析效应的规律。结果表明盐析剂的加入反而降低了金的萃取率。这说明盐析剂的作用机制与萃合物在负载有机相中的存在状态及结构密切相关。盐析剂的加入降低了水相中水分子的活度，不利于生成有机相中以水分子为桥的CTMA^ ．H2O．TBP缔合大阳离子萃合物。对传统的溶剂萃取盐析效应提出了一些亲的观点。
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| 关 键 词： | 金 表面活性剂 溶剂萃取 盐析效应 萃取剂 |
| 文章编号： | 1004-0609(2001)03-0518-04 |
| 修稿时间： | 2000-06-19 |
Abnormal influence ofsalting-out agent on Au(CN)-2 solvent extraction by CTMAB |
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| HUANG Kun,CHEN Jing,CUI Ning,WU Jin-guang,ZHOU Wei-jing,YAN Wen-fei. Abnormal influence ofsalting-out agent on Au(CN)-2 solvent extraction by CTMAB[J]. The Chinese Journal of Nonferrous Metals, 2001, 11(3): 518-521 |
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| Authors: | HUANG Kun CHEN Jing CUI Ning WU Jin-guang ZHOU Wei-jing YAN Wen-fei |
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| Affiliation: | HUANG Kun 1,CHEN Jing 1,CUI Ning 1,WU Jin guang 2,ZHOU Wei jing 2,YAN Wen fei 2 |
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| Abstract: | The abnormal influence of salting-out agent on the Au(CN)-2 solvent extraction by CTMAB was discussed. The results show that the addition of salting-out agent decreases the gold extraction, which means the action mechanism of salting-out agents is closely related with the existence state and structure of the extractive complex in the loading-organic phases. The addition of salting-out agent decreases the activity of H2O in the aqueous phases, harms to the formation of CTMA+*H2O*TBP. These results also bring some new ideas into the traditional theories of solvent extraction salting-out effect. |
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| Keywords: | gold surfactant solvent extraction salting out effect |
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