journal6 ›› 2010, Vol. 31 ›› Issue (2): 97-100.

• 化学化工 • 上一篇    下一篇

从铜镉渣中析出铜锌镉的氧化氨浸工艺

  

  1. (吉首大学化学化工学院,湖南 吉首 416000)
  • 出版日期:2010-03-25 发布日期:2012-04-18
  • 通讯作者: 颜文斌,教授,主要从事无机材料及矿产资源加工与利用研究.
  • 作者简介:刘海洋(1976-),男,河南新蔡人,吉首大学化学化工学院硕士研究生,主要从事矿产资源加工与利用研究
  • 基金资助:

    湖南省教育厅资助科研项目(08C717);湖南省科技计划项目(2008GK3003)

Research on Leaching  Process of  Copper,Zinc and Cadmium from Copper-Cadmium Slag

  1. (College of Chemistry and Chemical Engineer,Jishou University,Jishou 416000,Hunan China)
  • Online:2010-03-25 Published:2012-04-18

摘要:针对传统氨浸工艺浸出率较低现状,采用氧化氨浸工艺浸出回收铜镉渣中的镉、锌和铜.为了确定氧化氨浸工艺的最佳浸出条件,采用正交实验的方法研究了铜镉渣氧化氨浸的影响因素.结果表明:在氨水浓度3.7 mol/L,铵离子浓度5.0 mol/L和(NH4)2S2O8浓度30 g/L、液固比6∶1的条件下,镉、铜的浸出率达到99%,同时锌的浸出率达到96%,浸出率明显高于传统氨浸方法.

关键词: 铜镉渣, 氧化氨浸, 镉, 锌,

Abstract: Aimig at the low leaching rate of the traditional ammonium leaching process,the oxidizing ammonium leaching process of extracting cadmium,zinc,and copper from copper-cadmium slag is adopted.The effect of copper-cadmium slag was studied by orthogonal tests in laboratory in order to find out the optimum ammonia leaching conditions with oxidants.The optimum conditions obtained are as follows:ammonia concentration 3.7 mol/L,ammonium ion concentration 5.0 mol/L,(NH4)2S2O8 concentration 30 g/L,and liquid to solid ratio 6∶1.Under the optimum conditions,the leaching rate of Cd and Cu can reach 99%,and at the same time the leaching rate of Zn and Cd can reach 96%.The leaching rate of the oxidizing ammonium leaching process is obviously higher than that of the traditional ammonium leaching process.

Key words: copper-cadmium slag, oxidizing ammonium leaching, cadmium, zinc, copper

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