研究了阳离子型表面活性剂改性剂惰性稀释剂Au(CN)-2萃金体系中各种改性剂对萃取金性能的影响。 试验结果表明: 改性剂对萃金的助萃效果与它们的碱性强弱顺序一致, 即与它们的给电子能力的顺序一致, 为TAPO>TBP>MIBK>ROH>BIOSO。 改性剂的加入避免了体系中第三相的形成, 使得Au(CN)-2萃入有机相。
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.
参考文献
[1] | 潘学军;陈 景.水相中加添加剂溶剂萃取金(Ⅰ)[A].Kunming:The National Metallurgical Physical Chemistry Association,1996:206-213. |
[2] | 朱利亚;陈 景;金娅秋 et al.水相中加添加剂溶剂萃取Au(CN)-2[J].中国有色金属学报,1996,6(06):229-232. |
[3] | Chen Jing;ZHU Li-ya;JIN Ya-qiu.Solvent extraction of gold cyanide with tri-butyl-phosphate and additive added in aqueous phase[A].Toronto:International Precious Metals Institute,1998:65-74. |
[4] | HUANG Kun;CHEN Jing.Solvent extraction of gold(I) in mixed alcohol-diluent-surfactant-Au(CN)-2 system[A].Kunming:Yunnan Science and Technology Press,1999:283-288. |
[5] | Chen Jing;HUANG Kun;WU Jin guang et al.Micro-mechanism of Au(CN)-2 solvent extraction by surfactant[J].Hydrometallurgy,2000(57):13-21. |
[6] | 李 洲;李以圭.液-液萃取过程和设备(修订本)[M].北京:原子能出版社,1993:31-35. |
[7] | 闫文飞;马 刚;陈景 et al.表面活性剂Au(CN)-2机理[J].光谱学与光谱分析,1999,19(06):806-810. |
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