| N1923-TBP混合体系从多硫化物含金溶液中萃取金的研究 |
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| 引用本文： | 罗仙平,严群,彭会清. N1923-TBP混合体系从多硫化物含金溶液中萃取金的研究[J]. 有色金属(冶炼部分), 2004, 0(6): 30-34 |
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| 作者姓名： | 罗仙平 严群 彭会清 |
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| 作者单位： | 1. 江西理工大学,江西赣州市,341000;北京科技大学,北京,100083
2. 江西理工大学,江西赣州市,341000 |
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| 摘 要： | 考察了不同性质的萃取剂对N1923/正辛烷从多硫化物含金溶液中萃取Au(I)的影响,并对具有协萃效果的N1923-TBP混合体系进行了深入研究。研究结果表明对N1923-TBP混合体系,水相初始Au(I)浓度对萃取的影响不大;稀释剂的改变对萃取稍有影响,用芳烃稀释剂可使萃取曲线向高碱度方向移动。在低碱度(pH<9)多硫化物含金溶液中用N1923-TBP混合体系萃取时,N1923为主萃取剂,TBP起协萃作用;而从高碱度(pH>9)多硫化物含金溶液中萃取时,TBP为主萃取剂,而N1923则起协萃作用。
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| 关 键 词： | 金 溶剂萃取 多硫化物 胺类萃取剂 TBP |
| 文章编号： | 1007-7545(2004)06-0030-05 |
Study on Gold (I) Extraction from Containing Gold Polysulfide Solution with the Mixed Solvent of N1923-TBP |
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| LUO Xian-ping. Study on Gold (I) Extraction from Containing Gold Polysulfide Solution with the Mixed Solvent of N1923-TBP[J]. Nonferrous Metals(Extractive Metallurgy), 2004, 0(6): 30-34 |
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| Authors: | LUO Xian-ping |
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| Affiliation: | LUO Xian-ping~ |
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| Abstract: | The primary amine N_(1923) with addition of different neutral solvents is tested for the extent of extraction Au(I) from containing gold polysulfide solution, and further study is conducted on Au(I) extraction with the mixed solvent of N_(1923)-TBP for its synergic effect. The experimental results show that many conditions except the diluent of the organic phase don't affect the Au(I) extraction, the diluent of the organic phase has an influence on the Au(I) extraction, diluents with aromatics extract gold at more alkaline pH values than that with non-aromatics. In low alkaline solution (equilibrium pH<9), the primary amine N_(1923) would be the main extractant but in high alkaline solution (equilibrium pH>9), TBP would be the main extractant. |
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| Keywords: | Gold Solvent extraction Polysulfide Amine alkyl extractant TBP |
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