• 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

某高砷高硫金精矿工艺矿物学研究

  • 作者:
  • 马东梅|卢军|王艳|高歌|张修超
  • 作者单位:
  • 长春黄金研究院有限公司|辽宁金凤黄金矿业有限责任公司|长春黄金研究院有限公司|长春黄金研究院有限公司|长春黄金研究院有限公司
  • 基金项目:

  • isnull
  • 详细信息:

  • 作者简介:
  • 马东梅(1988—),女,吉林长春人,工程师,从事工艺矿物学研究工作;长春市南湖大路6760号,长春黄金研究院有限公司选冶研究所,130012;E-mail:332385144@qq.com
  • 通讯作者:
  • isnull
  • PDF下载

Process mineralogy study of a high-arsenic high-sulfur gold concentrate

  • English Author:
  • Changchun Gold Research Institute Co.,Ltd.|Liaoning Jinfeng Gold Mining Co.,Ltd.|Changchun Gold Research Institute Co.,Ltd.|Changchun Gold Research Institute Co.,Ltd.|Changchun Gold Research Institute Co.,Ltd.
  • Unit:
  • 摘要
  • 在线预览
  • 参考文献

摘要:

针对某金精矿,进行了详细的工艺矿物学研究,并在此基础上进行了生物氧化—氰化浸出试验验证,考查了金流失状态。结果表明:金精矿金品位38.71 g/t,含硫19.69%、砷22.01%,属于高砷高硫金精矿。金矿物嵌布状态以包裹金为主,粒度非常细小,以微粒金为主,占99.53%。采用生物氧化—氰化浸出工艺处理,金浸出率为84.04%;浸渣中流失的金除脉石矿物包裹外,多流失在砷酸盐混合物中,少流失在金属硫化物中;目的矿物浸出效果良好,金的流失特征符合工艺矿物学研究结果。

关键词:

金精矿;高砷;高硫;生物氧化;微粒金;工艺矿物学

Abstract:

A detailed process mineralogy study of a gold concentrate was carried out.Based on that,a biological oxidation-cyanidation leaching test was carried out for verification,investigating the gold loss state.The results show that the gold concentrates have a gold grade of 38.71 g/t and contain sulfur 19.69 % and arsenic 22.01 %,belonging to high-arsenic and high-sulfur gold concentrates.The gold minerals,in terms of embedding status,are dominated by encased gold with very fine grains,the dominant microgranular gold accounting for 99.53 %.The biological oxidation-cyanidation leaching process obtains a gold leaching rate of 84.04 %;the gold lost in leaching residue is mostly lost in arsenate mixtures,except for gangue minerals wrapping,and a little is lost in metallic sulfide;target minerals have good leaching performance and the gold loss characteristics are consistent with process mineralogy study results.

Keywords:

gold concentrate;high arsenic;high sulfur;biological oxidation;microgranular gold;process mineralogy