加压氰化处理铂钯硫化浮选精矿全湿法新工艺  

Pressure cyanide hydrometallurgical process for treatment of Pt-Pd sulfide flotation concentrates

作　　者：陈景[1] 黄昆[1] 陈奕然[1] 赵家春[1] 李奇伟[1] 

机构地区：[1]昆明贵金属研究所

出　　处：《中国有色金属学报》2004年第F01期41-46,共6页The Chinese Journal of Nonferrous Metals

摘　　要：目前世界上所有知名的铂族金属生产厂均采用从硫化铜镍浮选精矿用火法熔炼高锍捕集铂族金属的工艺,整个流程十分繁冗,周期长,环境污染大。采用新研究成功的浮选精矿→加压氧化酸浸→加压氰化→置换富集贵金属的高效、低污染、短流程全湿法新工艺,对云南金宝山浮选精矿进行了批量为5kg的扩大试验,并就S、Fe、SiO2、MgO及贵金属在全湿法工艺中的走向与传统火法工艺进行了比较讨论。The traditional methods for treatment of flotation concentrates of Cu-Ni sulfide ore containing platinum-group metals are all pyrometallurgy processes. The whole craft-flow is very long and have serious environmental pollution. A new short hydrometallurgical process flow with high recoveries of metals and low pollution for treatment of Yunnan Jinbaoshan Pt-Pd sulfide flotation concentrates was suggested. The typical processes include pressure oxidation sulfide-acid leaching, pressure cyanide leaching and zinc cementation. The process development unit capable of treating 5 kg batches of flotation concentrates was investigated, and the difference between traditional and new craft was also discussed and compared from the passage of S, Fe, SiO_2, MgO and precious metals.

关 键 词：铂族金属 浮选精矿 加压浸出 加压氰化 湿法冶金 

分 类 号：TF83[冶金工程—有色金属冶金]