金精炼尾渣综合回收铂、钯、铑  

Comprehensive Recovery of Platinum,Palladium,and Rhodium from Gold Refining Tailings

作　　者：梁源 LIANG Yuan(Zijin Copper Co.,Ltd.,Shanghang 364204,Fujian,China;Fujian Key Laboratory for Green Production of Copper and Comprehensive Utilization of Associated Resources,Shanghang 364204,Fujian,China)

机构地区：[1]紫金铜业有限公司,福建上杭364204 [2]铜绿色生产及伴生资源综合利用福建省重点实验室,福建上杭364204

出　　处：《有色金属（冶炼部分）》2023年第7期63-67,共5页Nonferrous Metals（Extractive Metallurgy)

摘　　要：探索了从金精炼尾渣中全湿法综合回收Pd、Pt、Rh、Au、Ag等有价金属的技术工艺路线,研究了纯钯和纯铂的制取、铑的富集,以及提高钯、铂回收率的工艺控制条件。结果表明,在新工艺参数条件下,海绵钯品位≥99.95%,回收率≥98%;海绵铂品位≥99.99%,回收率≥98%;金、银回收率>98%;铑在王水浸出不溶渣中富集。该工艺路线结构合理清晰,可操作性强,生产成本低,金属直收率高,产品质量稳定可靠,有明显的经济效益,可作为金精炼尾渣铂、钯、铑等贵金属提取的工艺。The technological process of comprehensive recovery of Pd,Pt,Rh,Au,and Ag from the tailings of gold refining by total wet process was studied.The preparation of pure palladium and platinum,enrichment of rhodium,and the technological control conditions to improve the recovery of palladium and platinum were studied.The results show that under the new process parameters,the grade of sponge palladium is≥99.95%,and the recovery rate is≥98%.The grade of sponge platinum is≥99.99%,and the recovery rate is≥98%.The recovery rate of gold and silver is both 98%above,and rhodium is enriched in the insoluble residue of aqua regia leaching.The process route has the advantages of reasonable and clear structure,strong operability,low production cost,high metal direct yield,stable and reliable product quality,and obvious economic benefits,which can be used as a process for extracting precious metals such as platinum,palladium,rhodium and other precious metals from gold refining tailings.

关 键 词：金精炼尾渣 全湿法 综合回收 铂 钯 铑 

分 类 号：TF83[冶金工程—有色金属冶金] TF803.2