从铂钯精矿中回收铂、钯和金
|
摘要
采用焙烧-预浸出-氯化浸出-萃取-精制工艺处理铜冶炼阳极泥产出铂钯精矿回收铂、钯、金。结果表明,氯化液采用亚硫酸钠控制电位还原,金回收率99%;金还原后液采用二异戊基硫醚萃取钯,氨水反萃,钯回收率>90%;萃钯余液采用三烷基胺萃取铂,氢氧化钠反萃,铂回收率>90%。铂、钯符合国标99.99%产品要求,粗金粉品位97.09%。
The operation process of calcinations-preleaching-chloridizing leaching-extraction-refine was applied to recover gold, palladium and platinum from copper anode mud. The results showed that after the oxidation reduction potential of chlorination liquid was controlled with sodium sulfite, the recovery rate of gold could reach 99%; while palladium was extracted from remain liquid with isoamyl sulphide, at a recover rate of over 90%. The liquid remain after the palladium extraction process was treated with trialkylamine and Na OH to reextract platinum. The treatment process could give rise to a palladium and platinum product which can be 99.99%, reached national standard of China, and the grade of coarse gold powder could be up to 97.09%.
The operation process of calcinations-preleaching-chloridizing leaching-extraction-refine was applied to recover gold, palladium and platinum from copper anode mud. The results showed that after the oxidation reduction potential of chlorination liquid was controlled with sodium sulfite, the recovery rate of gold could reach 99%; while palladium was extracted from remain liquid with isoamyl sulphide, at a recover rate of over 90%. The liquid remain after the palladium extraction process was treated with trialkylamine and Na OH to reextract platinum. The treatment process could give rise to a palladium and platinum product which can be 99.99%, reached national standard of China, and the grade of coarse gold powder could be up to 97.09%.
引文
[1]周志.提高金直收率的生产实践[J].现代矿业,2011,510(10):20-21.Zhou Zhi.Production practice of improving gold direct recovery[J].Express Information of Mining Industry,2011,510(10):20-21.
[2]胡建辉.从金还原后液中置换铂钯的工艺优化研究[J].湿法冶金,2000,19(2):22-26.Hu Jianhui.Study on optimun process for displacing Pt and Pd from the solution Au reduced[J].Hydrometallurgy of China,2000,19(2):22-26.
[3]李春侠.铂钯精矿处理的工艺实践[J].中国有色冶金,2009(4):42-45.Li Chunxia.Practice of platinum and palladium concentrates treatment[J].China Nonferrous Metallurgy,2009(4):42-45.
[4]邓成虎.铂钯精矿预处理脱除硒碲试验研究[J].黄金,2011,32(10):39-41.Deng Chenghu.Experimental study on pretreatment of platinum and palladium concentrate to remove selenium and tellurium[J].Gold,2011,32(10):39-41.
[5]廖秋玲,姜东,龚卫星.从铂钯精矿中回收铂、钯、金的工艺研究[J].中国资源综合利用,2010,28(8):35-38.Liao Qiulin,Jiang Dong,Gong Weixing.Study on technology of recycling Pt,Pd,gold from Pt Pd rich mines[J].China Resources Comprehensive Utilization,2010,28(8):35-38.
[6]张钦发,龚竹青,陈白珍.铂钯精矿中提取金铂钯的研究—铂钯精矿的预处理[J].矿冶工程,2002,2(2):73-79.Zhang Qinfa,Gong Zhuqing,Chen Baizhen.Investigation on extraction of Au,Pt and Pd-Pretreatment the concentrate[J].Mining and Metallurgical Engineering,2002,2(2):73-79.
[7]赵家春,汪云华,王靖坤,等.从铂钯精矿中氯化浸出Au、Pt、Pd[J].贵金属,2012,33(1):45-48.Zhao Jiachun,Wang Yunhua,Wang Jingkun,et al.Chloridizing leaching of Au,Pt and Pd from platinum and palladium concentrate[J].Precious Metals,2012,33(1):45-48.
[8]王爱荣,李春侠.从铂钯精矿中回收贵金属工艺选择[J].安徽化工,2002,28(5):11-12.Wang Airong,Li Chunxia.Process selection of extracting precious metals from Pt and Pd concentrate[J].Anhui Chemical Industry,2002,28(5):11-12.
[9]陈剑波,古国榜.新型硫醚萃取剂萃取分离钯铂的性能[J].矿冶工程,2006,26(1):61-64.Chen Jianbo,Gu Guobang.Property of novel sulfide extractant in extraction of palladium and platinum[J].Mining and Metallurgical Engineering,2006,26(1):61-64.
[2]胡建辉.从金还原后液中置换铂钯的工艺优化研究[J].湿法冶金,2000,19(2):22-26.Hu Jianhui.Study on optimun process for displacing Pt and Pd from the solution Au reduced[J].Hydrometallurgy of China,2000,19(2):22-26.
[3]李春侠.铂钯精矿处理的工艺实践[J].中国有色冶金,2009(4):42-45.Li Chunxia.Practice of platinum and palladium concentrates treatment[J].China Nonferrous Metallurgy,2009(4):42-45.
[4]邓成虎.铂钯精矿预处理脱除硒碲试验研究[J].黄金,2011,32(10):39-41.Deng Chenghu.Experimental study on pretreatment of platinum and palladium concentrate to remove selenium and tellurium[J].Gold,2011,32(10):39-41.
[5]廖秋玲,姜东,龚卫星.从铂钯精矿中回收铂、钯、金的工艺研究[J].中国资源综合利用,2010,28(8):35-38.Liao Qiulin,Jiang Dong,Gong Weixing.Study on technology of recycling Pt,Pd,gold from Pt Pd rich mines[J].China Resources Comprehensive Utilization,2010,28(8):35-38.
[6]张钦发,龚竹青,陈白珍.铂钯精矿中提取金铂钯的研究—铂钯精矿的预处理[J].矿冶工程,2002,2(2):73-79.Zhang Qinfa,Gong Zhuqing,Chen Baizhen.Investigation on extraction of Au,Pt and Pd-Pretreatment the concentrate[J].Mining and Metallurgical Engineering,2002,2(2):73-79.
[7]赵家春,汪云华,王靖坤,等.从铂钯精矿中氯化浸出Au、Pt、Pd[J].贵金属,2012,33(1):45-48.Zhao Jiachun,Wang Yunhua,Wang Jingkun,et al.Chloridizing leaching of Au,Pt and Pd from platinum and palladium concentrate[J].Precious Metals,2012,33(1):45-48.
[8]王爱荣,李春侠.从铂钯精矿中回收贵金属工艺选择[J].安徽化工,2002,28(5):11-12.Wang Airong,Li Chunxia.Process selection of extracting precious metals from Pt and Pd concentrate[J].Anhui Chemical Industry,2002,28(5):11-12.
[9]陈剑波,古国榜.新型硫醚萃取剂萃取分离钯铂的性能[J].矿冶工程,2006,26(1):61-64.Chen Jianbo,Gu Guobang.Property of novel sulfide extractant in extraction of palladium and platinum[J].Mining and Metallurgical Engineering,2006,26(1):61-64.