文献类型：期刊文献

中文题名：从硬质合金的硝酸浸出液中回收钴和铜

英文题名：Recovery of Cobalt and Copper From Nitric Acid Leaching Solution of Cemented Carbide Scrap

作者：周彦波[1];金锡标[1];鲁军[1]

机构：[1]华东理工大学资源与环境工程学院,上海200237

年份：2006

卷号：25

期号：3

起止页码：153

中文期刊名：湿法冶金

外文期刊名：Hydrometallurgy of China

语种：中文

中文关键词：硬质合金;硝酸浸出液;钴;铜;置换;回收

外文关键词：cemented carbide scrap ; leaching solution ; cobalt ; copper ;displacement ; recovery

摘要：对从硬质合金碎屑的硝酸浸出液中置换回收金属钴和铜进行了研究。分别采用铁、铝和锌3种金属粉末进行还原置换,对比发现,锌粉对浸出液中钴、铜的置换效果好于铁粉与铝粉。采用锌粉分别进行水解除铁和二次置换钴试验,结果表明,在80℃、溶液pH=2的条件下,采用预先水解除铁-锌粉置换钴流程,反应4h,钴和铜的回收率最高,分别达到94%和98%。
Recovery of cobalt and copper from nitric acid leaching solution of cemented carbide scrap was studied. Three active metals （Al, Fe and Zn） were used as reduction reagent to displace cobalt and copper. The test results on hydrolyzation and secondary displacing show that when iron was first removed by hydrolyzation and displaced with zinc powder under optimum conditions of 80 ℃, pH = 2, 4 h stirring time, the recovery rate of Co and Cu was 94% and 98%,respectively.