铜碲渣中碲的回收工艺研究

发布时间：2018-04-11 22:01

  本文选题：铜碲渣 + 碲　； 参考：《有色金属(冶炼部分)》2017年08期

【摘要】：采用硫酸化焙烧—水浸脱铜—碱浸提碲—电积工艺回收铜碲渣中的碲,考察了NaOH浓度、温度等对碲浸出的影响,并对水解脱杂和碲电积工艺进行探索。结果表明,经过硫酸化焙烧、水浸后,铜脱除率为75%;电积产品碲纯度为99.90%,综合碲回收率约93%;金、银、铂和钯等贵金属进一步富集在碱浸渣中。
[Abstract]:The effect of NaOH concentration and temperature on the leaching of tellurium from copper tellurium slag was investigated by sulfation roasting, water leaching, alkali leaching and electrodeposition. The process of water removal and electrodeposition of tellurium was also explored.The results show that after sulfation roasting, the removal rate of copper is 75%, the purity of electrowinning product tellurium is 99.90, the comprehensive recovery of tellurium is about 93%, and the precious metals such as gold, silver, platinum and palladium are further enriched in alkali leaching slag.
【作者单位】： 厦门紫金矿冶技术有限公司;低品位难处理黄金资源综合利用国家重点实验室;
【基金】：福建省科学计划区域发展项目(2015H4017)
【分类号】：TN304.14
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本文编号：1737824