用硫氰酸钾从季铵盐载金有机相中反萃金的研究

贵金属, 2002, 23(3): 8-12. doi: 10.3969/j.issn.1004-0676.2002.03.002

用硫氰酸钾从季铵盐载金有机相中反萃金的研究

杨项军 ^1, , 陈景 ^2, , 姜建准 ^3, , 张天喜 ^4, , 李楷中 ^5, , 杨秋雪 ^6,

1.昆明贵金属研究所,中国昆明,650221

2.昆明贵金属研究所,中国昆明,650221

3.北京大学化学与分子工程学院,中国北京,100871

4.北京大学化学与分子工程学院,中国北京,100871

5.昆明贵金属研究所,中国昆明,650221

6.昆明贵金属研究所,中国昆明,650221

基金项目: 国家自然科学基金(29876016) 云南省院省校合作项目(B9808K)

关键词：金 , 硫氰酸钾 , 十六烷基三甲基溴化铵 , 反萃取

Study on Gold Stripping from Gold- Loaded Quaternary Amine by KSCN

研究了应用硫氰酸钾从CTAB-30%TBP(或30%正辛醇)-磺化煤油萃Au(Ⅰ)体系载金有机相的反萃取,以及反萃后的有机相的重复利用等.研究结果表明,应用3mol/L KSCN能够将载金有机相中(浓度为3g/L Au)90%左右的Au反萃入水相,3级反萃率接近100%.有机相经过5次循环利用后,对1g/L Au溶液的萃取率基本无变化.反萃入水相中的Au可以用NaBH4还原回收.

参考文献

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用硫氰酸钾从季铵盐载金有机相中反萃金的研究

Study on Gold Stripping from Gold- Loaded Quaternary Amine by KSCN

参考文献