• captcha

中国科技核心期刊

美国化学文摘社(CAS)数据库

美国EBSCO学术数据库

日本科学技术振兴机构数据库(JST)

期刊导读

首页   >    选矿与冶炼

高银铜解吸金泥综合回收金银试验研究

  • 作者:
  • 陈德海|高亮|刘俊林|梁祖祯|王家利
  • 作者单位:
  • 云南黄金矿业集团股份有限公司&云南滇金投资有限公司|云南黄金矿业集团股份有限公司&云南滇金投资有限公司|云南黄金矿业集团股份有限公司&云南滇金投资有限公司|云南黄金矿业集团股份有限公司&云南滇金投资有限公司|云南黄金矿业集团股份有限公司&云南滇金投资有限公司
  • 基金项目:

  • isnull
  • 详细信息:

  • 作者简介:
  • 陈德海(1975—),男,云南大理人,高级工程师,主要从事贵金属技术研究与生产管理工作;昆明市东郊白沙河地矿疗养院内,云南滇金投资有限公司,650215;E-mail:1094023894@qq.com
  • 通讯作者:
  • isnull
  • 此文档没有上传!

Experimental study on comprehensive recovery of gold and silver from desorption gold mud with high silver and copper content

  • English Author:
  • Yunnan Gold & Mineral Group Co.,Ltd.; 2.Yunnan Dianjin Investment Co.,Ltd.|Yunnan Gold & Mineral Group Co.,Ltd.; 2.Yunnan Dianjin Investment Co.,Ltd.|Yunnan Gold & Mineral Group Co.,Ltd.; 2.Yunnan Dianjin Investment Co.,Ltd.|Yunnan Gold & Mineral Group Co.,Ltd.; 2.Yunnan Dianjin Investment Co.,Ltd.|Yunnan Gold & Mineral Group Co.,Ltd.; 2.Yunnan Dianjin Investment Co.,Ltd.
  • Unit:
  • 摘要
  • 在线预览
  • 参考文献

摘要:

针对某复杂高银铜解吸金泥,进行了FeCl3酸浸除杂—熔铸银阳极板—银电解分金银的联合流程研究。在FeCl3用量n(Fe3+)∶n(Cu)为2.8、HCl浓度2.5 mol/L、液固比4∶1、反应温度80 ℃、反应时间2.5 h的最优条件下,金泥Cu、Pb、Fe浸出率分别为97.25 %、98.24 %和99.67 %,Au、Ag浸出率仅为0.027 %和0.441 %,达到了有效分离贵贱金属的目的。除杂后的金泥熔铸成银阳极板,其主要金属质量分数为Au 21.47 %、Ag 78.59 %、Cu 0.89 %、Pb 0.04 %,易于通过银电解工艺分别提纯得到1号银和1号金。该工艺是一种较为理想的高银铜解吸金泥处理工艺。

关键词:

解吸金泥;酸浸除杂;电解;铜;银

Abstract:

For complex desorption gold mud with high silver and copper content,a combined process of FeCl3 acid leaching-silver anode casting-silver electrolysis for gold and silver separation was studied.The optimum conditions were obtained through the experiment,that the dosage of FeCl3 expressed as n(Fe3+)/n(Cu) is 2.8,HCl concentration is 2.5 mol/L,liquid-solid ratio is 4∶1,the reaction temperature is 80 ℃,the reaction time is 2.5 h.Under these conditions,the leaching rates of Cu,Pb and Fe were 97.25 %,98.24 % and 99.67 % respectively,and the leaching rates of Au and Ag were only 0.027 % and 0.441 % respectively.The purpose of separating noble and base metals effectively was achieved.The gold mud was cast into silver anode plate after removing impurities,and the main metal mass fraction were Au 21.47 %,Ag 78.59 %,Cu 0.89 % and Pb 0.04 %.This anode plate was easily purified by silver electrolysis to get Ag-Ⅰand Au-Ⅰ.It is an ideal process to treat desorption gold mud with high silver and copper content.

Keywords:

desorption gold mud;impurity removal by acid leaching;electrolysis;copper;silver