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金属矿山 ›› 2018, Vol. 47 ›› Issue (10): 189-192.

• 综合利用 • 上一篇    下一篇

湿法炼锌净化铜镉渣氧化酸浸试验研究

李勇1,刘安荣2,刘洪波2,王振杰2,彭伟2,钟波3   

  1. 1. 贵州省新材料研究开发基地,贵州 贵阳 550002;2. 贵州省冶金化工研究所,贵州 贵阳 550023;3. 六盘水中联工贸实业有限公司,贵州 六盘水 553012
  • 出版日期:2018-10-15 发布日期:2018-11-09
  • 基金资助:

    *:省市科技合作项目(编号:52020-2016-04-04),六盘水市科技合作项目(编号:52020-2017)。

Experimental Study on Oxidative Acid Leaching of Copper-Cadmium Slag from Hydrometallurgical of Zinc

Li Yong1, Liu Anrong2, Liu Hongbo2, Wang Zhenjie2, Peng Wei2, Zhong Bo3   

  1. 1. Guizhou Research and Development Base of New Materials, Guiyang 550002, China; 2. Guizhou Institute of Metallurgical and Chemical Engineering, Guiyang 550023,China;3. Liupanshui Zhonglian Industry and Trade Co., Ltd., Liupanshui 553012,China
  • Online:2018-10-15 Published:2018-11-09

摘要: 湿法炼锌过程会产生大量铜镉渣,对资源、环境、社会产生危害。以贵州某湿法炼锌净化工序产生的铜镉渣为研究对象,采用氧化酸浸法对其进行了浸出工艺条件研究。结果表明,在磨矿细度为-0.075 mm占80%、双氧水用量为铜镉渣质量的15%、液固比为4 mL/g、硫酸浓度为20%、浸出温度为75 ℃、浸出时间为4 h条件下,可使铜镉渣中有价金属Cu、Zn、Cd的浸出率分别达到86.42%、97.65%、94.86%。试验结果可以为从铜镉渣中综合回收铜、锌、镉提供参考。

关键词: 铜镉渣, 氧化酸浸, 有价金属, 浸出率

Abstract: The wet zinc smelting process produces a large amount of copper and cadmium slag, which is harmful to resources, environment and society. Taking copper and cadmium slag produced by a wet zinc Purification process in Guizhou as research object, the leaching conditions were studied by oxidizing acid leaching method. The results show that at the grinding fineness of 80% -0.075 mm, the mass ratio amount of hydrogen peroxide is 15% of copper cadmium, the ratio of liquid to solid is 4m L/g, the concentration of sulfuric acid is 20%, the leaching temperature is 75 ℃, and the leaching time is 4 h. Under the conditions, the leaching rates of valuable metals Cu, Zn and Cd in copper cadmium slag can reach 86.42%, 97.65% and 94.86%, respectively. The test results can provide reference for the comprehensive recovery of copper, zinc and cadmium from copper cadmium slag.

Key words: Copper and cadmium slag, Oxidation acid leaching, Valuable metals, Leaching rate