从失效Pt-V/C催化剂中回收铂的新工艺  

A New Technology of Recovery Platinum from Spent Pt-V/C Catalyst

作　　者：刘文 贺小塘 王欢 吴喜龙 李勇 赵雨 韩守礼 李锟 李红梅 谭明亮 李子璇 

机构地区：[1]贵研资源(易门)有限公司,贵研铂业股份有限公司稀贵金属综合利用新技术国家重点实验室,昆明650106

出　　处：《贵金属》2014年第1期27-30,35,共5页Precious Metals

基　　金：国家高技术研究发展计划(863计划)项目(2012AA063204;2012AA063207;2012AA063203);云南省科技创新强省计划项目(2011AA004);国家科技支撑计划(2012BAE06B08)

摘　　要：由于化学性质相似,铂钒分离提纯比较困难。对失效Pt-V/C催化剂中铂的回收进行了研究,重点考察了盐酸浓度、温度和氯化铵的用量3种工艺参数对铂钒分离的影响,得出优化的工艺条件：在室温下,盐酸浓度为3.0 mol/L,氯化铵与铂的质量比为4-5,可以实现铂的有效沉淀分离。经精炼可以获得纯度为99.95%的海绵铂,铂的回收率大于99.5%。A new technology of recovery platinum from spent Pt-V/C catalyst, in which platinum and vanadium are difficult to separate and purify, due to similar chemical properties, was studied. Three technical conditions of hydrochloric acid concentration, temperature and the quantity of ammonium chloride for the separation of platinum and vanadium were emphatically studied. The optimal process conditions are： hydrochloric acid concentration is 3.0 mol/L, the mass ratio of ammonium chloride to platinum is 4~5, and treating at room tempreture. Under these conditions effective precipitation separation of platinum can be achieved. The purity more than 99.95% of platinum was obtained by purification, and the recovery rate of platinum was higher than 99.5%.

关 键 词：冶金技术 铂族金属 铂炭催化剂 精细化工 回收 

分 类 号：TF833[冶金工程—有色金属冶金] TQ426.95[化学工程]