用椰壳炭从开路银电解液中富集铂、钯试验研究  

Research on Enriching Pt and Pd Using Coconut Shell Charcoal From Silver Electrolyte

作　　者：陈杭[1,2] 张永锋[1] 吴健辉[1] 衷水平[1,2,3] 林泓富 张焕然[1,2] 刘建强[1] 王俊娥[1,2] 

机构地区：[1]紫金矿业集团股份有限公司,福建上杭364200 [2]低品位难处理黄金资源综合利用国家重点实验室,福建上杭364200 [3]江西理工大学冶金与化学工程学院,江西赣州341000

出　　处：《湿法冶金》2017年第3期222-226,共5页Hydrometallurgy of China

摘　　要：针对开路银电解液中铂钯浓度低、难回收的特点,研究了采用椰壳炭富集铂、钯。试验结果表明:在液固体积质量比72∶1条件下吸附120min,银电解液中铂、钯吸附率分别达98%和85%以上;在硝酸质量浓度200g/L、液固体积质量比8∶1条件下解吸80 min,负载于椰壳炭上的铂、钯的解吸率分别达86.95%和91.65%。工业试验结果表明,银电解液中铂、钯可分别富集至3.54g/L和62.12g/L,富集效果较好。Based electrolyte, the the absor ratio of 7 desorbed 2 U time of 80 test results on the characteristices coconut shell charcoal of Pt and Pd are over ： 1 and adsorption time sing 200 g/L nitric acid min,the desorption rate show that the Pt and Pd of low concentration and difficult recycle of Pt and Pd in silver was 98% of 120 solution used to enrich Pt and Pd. The and 85%, respectively, at the min. When the loading Pt and at the conditions of liquid-to-s of Pt and Pd are 86. in the electrolyte can 95 and 91.65G enriched to 3.54 bench-scale tests show that conditions of liquid-to-solid Pd coconut shell charcoal is olid ratio of 8 ：1 ,desorption , respectively. The commercial g/L and 62.12 g/L.

关 键 词：铂 钯 椰壳炭 开路银电解液 

分 类 号：TF83[冶金工程—有色金属冶金] X703[环境科学与工程—环境工程]