废旧催化剂中多金属综合回收工艺研究  

Technology Study of Comprehensive Recovery of Multi Metals from Waste Catalyst

作　　者：朱来东[1] 鲁兴武[1] 易超[1] 何国才[1] 

机构地区：[1]西北矿冶研究院冶金新材料研究所、甘肃省有色金属冶炼新工艺及伴生稀散金属高效综合利用重点实验室,甘肃白银730900

出　　处：《有色金属（冶炼部分）》2014年第7期35-37,共3页Nonferrous Metals（Extractive Metallurgy)

基　　金：科技部科研院所技术开发研究专项资金(2011EG115010)

摘　　要：采用二段逆流浸出—沉钒—氨溶重结晶—再提纯的工艺流程从废旧催化剂中综合回收有价金属钨、钼、钒。结果表明,控制浸出温度70℃,时间3.5h,碳酸钠浓度350g/L,液固比3∶1,钨、钼、钒浸出率均在95%以上,综合回收率可以达到90%以上。Tungsten, molybdenum, and vanadium were comprehensively recovered from waste catalyst with a series of processes including two-stage countercurrent leaching, vanadium precipitation, recrystallization after ammonia dissolving, and purification. The results show that leaching rate of W, Mo, V is all 95% above, and comprehensive recovery is over 90% under the optimum conditions including leaching temperature of 70 ℃, leaching time of 3.5 h, sodium carbonate concentration of 350 g/L, and ratio of liquid to solid of 3 ： 1.

关 键 词：废旧催化剂 钨 钼 钒 综合回收 

分 类 号：TF841[冶金工程—有色金属冶金]