摘要: 报道利用聚乙二醇(PEG)/硫酸钠(Na2SO4)双水相体系从碱性氰化液中萃取分离金。实验考察初始水相 pH值,PEG及 Na2SO4浓度等对 KAu(C)2萃取影响。结果表明:富硫酸钠相(下相)的 KAu(CN)。几乎全部转移到富 PEG相(上相),且与pH值无关。随PEG或Na2SO4浓度减小,金的分配系数减小。双水相萃取可能为金分离提供了一种新方法。
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张天喜,李文钧,吴瑾光,周维金,高宏成,陈景. 双水相体系从碱性氰化液中萃取分离金研究 [J]. CIESC Journal.
Zhang Tianxi, Li Wenjun, Wu Jinguang, Zhou Weijing , Gao Hongcheng and Chen Jing (State Key Laboratory of Rare Earth Materials Chemistry and Applications, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871; Department of. EXTRACTION OF AU(CN)_2~- FROM CYANIDE SOLUTIONS USING AQUEOUS BIPHASIC SYSTEMS[J]. .