(1.華南理工大學(xué)應(yīng)用化學(xué)系，廣州510641；
2.金川有色金屬工業(yè)公司二冶煉廠，金昌737104)
摘 要: 闡述了石油亞砜(PSO)選擇性萃取分離Pd的基本原理，并以此為基礎(chǔ)究了用DBC萃Au、PSO萃Pd及N235萃Pt，從金川蒸餾Os、Ru之后的脫膠液中萃取分離金、鈀、鉑的工藝過程。
關(guān)鍵字: 金 鈀 鉑 溶劑萃取 分離
（1.Department Applied Chemistry,South China University of Technology,Guangzhou510641;
2.The Second Smeltery and Refinery of Jinchuan Non-ferrous Metals Company, Jinchang 737104）
Abstract:The extraction properties of precious metals by petroleum sulphoxide have been studies. An inte-grated solvent extraction method used to separate gold, palladium and platinum in distillated raffinate from Jingchuan Non-ferrous Metals Industry Companywas proposed, which sonsisted of the extractions of gold by DBC, palladium by PSO and platinum by N235.The percent extractions and strippings of Au,Pd and Pt have all come up to the standard of 99.99%.The rhodium and iridium mainly retained in the raffinate.
Key words: gold platinum palladium solvent extraction separation
