选择性溶解Pt-Re重整废催化剂工艺研究  

Selective Dissolving Technology of Spent Pt-Re Reforming Catalyst

作　　者：谭明亮[1] 王欢[1] 贺小塘[1] 郭俊梅[1] 韩守礼[1] 李红梅[1] 赵雨[1] 李勇[1] 吴喜龙[1] 缪海才 邹蕊鲜 李佳莹[1] 

机构地区：[1]贵研资源(易门)有限公司,昆明贵金属研究所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4期41-44,共4页Precious Metals

基　　金：国家高技术研究发展计划(863计划)项目(2012AA063203;2012AA063204;2012AA063207)

摘　　要：采用选择性溶解工艺,解决了Pt-Re重整废催化剂再生利用过程中铂铼分离难的问题。经实验研究,确定了废催化剂焙烧预处理的最佳条件为500℃下焙烧3 h,用20%硫酸溶解废催化剂,加入适量的硫酸亚铁抑制铂溶解,铼的溶解率可达98%,铂的溶解率为0.8%,渣率仅为7%,实现了铂和铼的分离,有利于铼的精炼提纯及铂的富集。The hurdles of platinum-rhenium separation in the recovery process of spent Pt-Re reforming catalyst have been overcome by a selective dissolving technology. The technology involves roasting the spent catalyst at 500℃ for 3 hours, followed by dissolving Re in 20% sulfuric acid solution. Co-dissolution of Pt can be inhibited by addition of certain amount of ferrous sulfate. Under these conditions, effective separation of platinum from rhenium can be achieved. 98% of rhenium in spent Pt-Re reforming catalyst is converted into the solution and platinum dissolution is reduced to 0.8%, while the residue rate is only 7%.

关 键 词：有色金属冶金 废催化剂 贵金属 铂 铼 回收 

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