第44卷第6期2022年12月甘肃冶金GANSUMETALLURGYVol.44No.6Dec.,2022文章编号:1672⁃4461(2022)06⁃0044⁃03海绵钯精炼过程中银与钯的有效分离探索实践周明祖,贾启金(白银有色集团股份有限公司铜业公司,甘肃白银730900)摘要:介绍了钯提纯精炼过程中杂质元素银的分离方法,即银阳极泥经硝酸酸化除杂,氯化钠沉银后两级过滤尽可能除去氯化银沉淀,过滤后液经氯化铵沉钯后,在氨水络合、酸化沉淀时控制溶液pH值使银离子再次被深度除去,从而得到符合国家标准的海绵钯产品。关键词:钯精炼;银分离;海绵钯;除杂;提纯中图分类号:TF836文献标识码:AExplorationandPracticeofEffectiveSeparationofSilverandPalladiumintheRefiningProcessofSpongePalladiumZHOUMing⁃zu,JIAQi⁃jin(CopperCompanyofBaiyinNonferrousGroupCo.Ltd.,Baiyin730900,China)Abstract:Introducedtheseparationmethodofimpurityelementsilverintheprocessofpalladiumpurificationandrefining,thatis,thesilveranodemudisacidifiedwithnitricacidtoremoveimpurities,andthetwo⁃stagefiltrationaftersodiumchlo⁃rideprecipitationsilvertoremovesilverchlorideprecipitationasmuchaspossible,andthefilteredliquidissubjectedtoammoniumchloride,afterpalladiumisdeposited,thepHvalueofthesolutioniscontrolledduringtheammoniacomplex⁃ationandacidificationprecipitationsothatthesilverionsaredeeplyremovedagain,soastoobtainasp...