从钛阳极退镀料中回收精炼铱的工艺研究  

Research on the process of recovering iridium from waste titanium anodes

作　　者：马子龙 王欢 王彪 杨深宏 吴喜龙 MA Zilong;WANG Huan;WANG Biao;YANG Shenhong;WU Xilong(Sino-Platinum Metals Resources(Yimen)Co.Ltd.,Yuxi 651100,Yunnan,China)

机构地区：[1]贵研资源(易门)有限公司,云南玉溪651100

出　　处：《贵金属》2023年第S01期74-77,共4页Precious Metals

基　　金：云南贵金属实验室产业化技术攻关(YPML-2022050208);云南贵金属实验室重大科技专项(YPML-2023050201)。

摘　　要：通过氧化沉淀、还原溶解等工艺从钛阳极退镀料溶解液中回收贵金属铱,实验确定了最佳工艺条件,在氧化还原电位大于900 mV、氯化铵用量为铱的1倍以上时,铱的沉淀率大于98%,还原p H值为3时,可较好的分离铱中少量的铂钯铑钌杂质。方法适用于以铱为主体、贵金属杂质含量较低的含铱废料处理,操作简便,产品纯度可达到国标要求。The precious metal iridium was recovered from titanium anode deplating by oxidation precipitation,reduction dissolution and other processes.The experiment determined the best process conditions.When the red-ox potential is greater than 900 mV,the amount of ammonium chloride is more than 1 times of iridium,the precipitation rate of iridium is greater than 98%,and the reduction pH value is 3,a small amount of platinum,palladium,rhodium and ruthenium impurities in iridium can be separated well.The method is suitable for the treatment of iridium waste with iridium as the main body and the content of precious metal impurities reduced.The operation is simple and the purity of the product can meet the requirements of the national standard.

关 键 词：铱 回收 氧化沉淀 还原溶解 

分 类 号：TF833[冶金工程—有色金属冶金]