从废弃的钨金属制品中回收钨和钒  

RECOVERY OF TUNGSTEN AND VANADIUM FROM THE TUNGSTATE SCRAP

作　　者：罗琳[1] 藤田丰久 治进藤 

机构地区：[1]北京矿冶研究总院 [2]日本秋田大学 [3]日本三菱集团新金属公司

出　　处：《矿冶》2002年第1期50-54,76,共6页Mining And Metallurgy

摘　　要：研究和开发了一种从废弃的钨金属制品中回收钨和钒的新工艺。该工艺包含三个步骤 :①联合使用镁盐和铝盐对钨金属制品碱浸出液的纯化 ;②利用甲酸选择性地浸出钒 ;③高纯APT的结晶。通过该工艺的处理 ,钨金属制品浸出液中的钒浓度可从 0 .175 g/L提高到 1.380g/L。结果 ,86 96%金属钒以偏钒酸铵的形式被回收 ,85 %以上的金属钨以APT(仲钨酸铵 )的形式被回收 ,APT的纯度达到了日本的国家产品 (一级品 )A new technology for recovering tungsten and vanadium from the tungstate scrap was presented The process consists of 3 stages:1)purification of the leached solution with combined Mg and Al salts,2)selectively leaching vanadium by the formic acid,3)crystallization of high purity APT After the tungstate scrap is treated by use of the process,the concentration of V in the leach solution can be improved from 0 175g/L to 1 38g/L Consequently,86 96%V can be recovered as ammonium metavanadate and over 85%WO 3 can be recovered as APT The purity of APT reaches the Japanese national APT standard level

关 键 词：废弃的含钨金属物料 钨、钒的回收 APT 偏钒酸铵 纯化 沉淀 结晶 

分 类 号：TF803.2[冶金工程—有色金属冶金] TF841