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铁粉还原法回收金泥氯浸渣中的银

  • 作者:
  • 李轩|韩战旗|熊亚东
  • 作者单位:
  • 河南中原黄金冶炼厂有限责任公司|河南中原黄金冶炼厂有限责任公司&河南省黄金资源综合利用重点实验室|河南中原黄金冶炼厂有限责任公司
  • 基金项目:

  • isnull
  • 详细信息:

  • 作者简介:
  • 李轩(1984—),男,陕西洋县人,工程师,从事黄金冶炼及提纯工作;河南省三门峡市产业集聚区209国道南侧,河南中原黄金冶炼厂有限责任公司,472000;E-mail:419149547@qq.com
  • 通讯作者:
  • E-mail:hanzhanqi5217@163.com,15839865217
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Silver recovery from gold mud chloride leaching tailings by iron powder reduction

  • English Author:
  • Henan Zhongyuan Gold Smelting Co.,Ltd.|Henan Zhongyuan Gold Smelting Co.,Ltd.&Comprehensive Utilization Key Laboratory of Gold Resource in Henan Province|Henan Zhongyuan Gold Smelting Co.,Ltd.
  • Unit:
  • 摘要
  • 在线预览
  • 参考文献

摘要:

金泥氯浸渣还原得到的粗银粉中杂质含量高,会影响后续电解精炼获得的银粉质量。试验采用铁粉还原法回收某黄金冶炼厂金泥氯浸渣中的银,通过条件试验优化了铁粉用量、酸碱度、料液温度及液固比等参数,并进行了工业应用。结果表明:在铁粉用量100 kg/t氯浸渣,pH值为2,液固比5:1,料液温度60 ℃条件下,氯浸渣银品位提高了30 百分点以上,应用效果良好。

关键词:

铁粉;金泥;氯浸渣;还原;银

Abstract:

The impurity content in coarse silver powder obtained in the reduction of gold mud chloride leaching tailings and will affect the quality of silver powder obtained in the following electrowinning refining process.For the recovery of silver from the gold mud chloride leaching tailings in a gold smeltery,iron powder reduction method is used in the test.The parameters including iron powder dosage,pH,pulp temperature and liquid-solid ratio are optimized through condition test,and industrial application is carried out.The results show that when the iron powder dosage is 100 kg/t chloride leaching tailings,pH value is 2,liquid-solid ratio is 5:1,pulp temperature is 60 ℃,the silver grade in chloride leaching tailings is increased by over 30 percentage points,and the application outcome is good.

Keywords:

iron powder;gold mud;chloride leaching tailings;reduction;silver