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首页   >    选矿与冶炼

非洲某氧化型金矿重选—浸出工艺研究

  • 作者:
  • 吕良|岳铁兵|王威|郭珍旭
  • 作者单位:
  • 中国地质科学院郑州矿产综合利用研究所&自然资源部多金属矿综合利用评价重点实验室&东北大学资源与土木工程学院|中国地质科学院郑州矿产综合利用研究所&自然资源部多金属矿综合利用评价重点实验室|中国地质科学院郑州矿产综合利用研究所&自然资源部多金属矿综合利用评价重点实验室|中国地质科学院郑州矿产综合利用研究所&自然资源部多金属矿综合利用评价重点实验室
  • 基金项目:

  • 中国地质调查局地质调查二级项目(DD20201174)
  • 详细信息:

  • 作者简介:
  • 吕良(1978—),男,甘肃天水人,高级工程师,博士研究生,研究方向为矿物加工;郑州市陇海西路328号,中国地质科学院郑州矿产综合利用研究所,450006;E-mail:39248259@qq.com
  • 通讯作者:
  • isnull
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Research of gravity-leaching process of an oxidized gold ore in Africa

  • English Author:
  • Zhengzhou Institute of Multipurpose Utilization of Mineral Resources,Chinese Academy of Geological Sciences&Key Laboratory for Polymetallic Ores’ Evaluation and Utilization,MNR&College of Resources and Civil Engineering,Northeastern University|Zhengzhou Institute of Multipurpose Utilization of Mineral Resources,Chinese Academy of Geological Sciences&Key Laboratory for Polymetallic Ores’ Evaluation and Utilization,MNR|Zhengzhou Institute of Multipurpose Utilization of Mineral Resources,Chinese Academy of Geological Sciences&Key Laboratory for Polymetallic Ores’ Evaluation and Utilization,MNR|Zhengzhou Institute of Multipurpose Utilization of Mineral Resources,Chinese Academy of Geological Sciences&Key Laboratory for Polymetallic Ores’ Evaluation and Utilization,MNR
  • Unit:
  • 摘要
  • 在线预览
  • 参考文献

摘要:

非洲几内亚某氧化型金矿石中金以微细粒形式嵌布于脉石矿物裂隙,针对该矿石性质特点,在阶段磨矿的基础上,采用重选—浸出工艺,获得了较好指标:金总回收率达到96.60 %,其中尼尔森重选可获得金品位129.82 g/t、金回收率62.03 %的精矿;重选尾矿经环保浸出剂浸出,尾矿金品位降至0.12 g/t,金浸出率34.58 %。研究结果为中资企业开发利用境外矿产资源提供了技术支撑。

关键词:

氧化型金矿;尼尔森选矿机;重选;阶段磨矿;环保浸出剂

Abstract:

The gold in a certain oxidized gold ore in Guinea,Africa,is distributed in the fissure of gangue minerals in the form of fine particles.According to the ore property,a gravity-leaching process is carried out based on stage grinding and has achieved good index:the total recovery of gold is 96.60 %;gold concentrate with a grade of 129.82 g/t and a recovery of 62.03 % can be obtained by Nelson gravity separation;the gold grade in the tailings from gravity separation is reduced to 0.12 g/t after environment-friendly agent leaching,and the gold leaching rate is 34.58 %.The research results provide technical support for the development and utilization of overseas resources for Chinese enterprises.

Keywords:

oxidized gold ore;Nelson gravity separation;gravity;stage grinding;environment-friendly agent leaching