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青海某微细浸染型难处理金矿石工艺矿物学研究

  • 作者:
  • 张鑫宇|霸慧文|应永朋|陈攀
  • 作者单位:
  • 青海省地质矿产测试应用中心|青海省自然资源博物馆|青海省地质矿产测试应用中心|青海省地质矿产测试应用中心
  • 基金项目:

  • 青海省重点研发与转化计划项目(2019-SF-139)
  • 详细信息:

  • 作者简介:
  • 张鑫宇(2000年—),男,大学本科,从事矿物加工,煤炭及有色金属的浮选、重选工作;E-mail:395587965@qq.com
  • 通讯作者:
  • 霸慧文(1995—),女,助理工程师,从事矿产综合利用研究及科普教学工作;E-mail:849430614@qq.com
  • PDF下载

Process mineralogy on a refractory microfine-dissemination gold ore in Qinghai Province

  • English Author:
  • Qinghai Geological Minerals Testing and Application Center|Qinghai Provincial Museum of Natural Resources|Qinghai Geological Minerals Testing and Application Center|Qinghai Geological Minerals Testing and Application Center
  • Unit:
  • 摘要
  • 在线预览
  • 参考文献

摘要:

为了进一步提高青海某微细粒浸染型金矿石回收指标,对其进行详细的工艺矿物学研究。研究结果表明:影响金回收率的主要因素是细粒和微细粒级黄铁矿、毒砂的回收问题。由于大部分微细粒级黄铁矿和毒砂在磨矿作业时不易单体解离,造成部分金矿物损失。除此之外,脉石矿物包裹微细粒金也是金矿物的重要损失形式。建议采用阶段磨矿阶段选别的浮选工艺,提高金回收率。

关键词:

微细粒浸染型金矿;包裹体;黄铁矿;毒砂;单体解离度

Abstract:

In order to further improve the recovery index of a refractory microfine-dissemination gold ore in Qinghai Province,a detailed process mineralogy study was conducted.The results showed that the main factors affecting gold recovery were the recovery of fine and micro-fine pyrite and arsenopyrite.Due to the difficulty of monomer dissociation of most fine and micro-fine pyrite and arsenopyrite during the grinding process,some gold minerals were lost.In addition,fine-grained gold inclusion by vein minerals was also an important form of gold mineral loss.It is suggested to use a flotation process with staged grinding and separation to improve gold recovery rate.

Keywords:

refractory microfine-dissemination gold ore;inclusion;pyrite;arsenopyrite;monomer dissociation