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某金矿选矿工艺试验研究
- 梁泽来
- 作者单位：
- 辽宁金凤黄金矿业有限责任公司
基金项目：
- isnull
详细信息：
- 作者简介：
- 梁泽来（1966—），男，吉林长春人，教授级高级工程师，从事选矿技术研究与管理工作；辽宁省凤城市青城子镇杨树村，辽宁金凤黄金矿业有限责任公司，118100；E-mail：574190938@qq.com
- 通讯作者：
- isnull
- PDF下载
Experimental research on the ore-dressing process in a gold mine
- English Author：
- Liaoning Jinfeng Gold Mining Industry Co.,Ltd.
- Unit：
- 摘要
- 在线预览
- 参考文献
摘要:
某金矿石中可供回收的有价元素为金，品位为1.78 g/t，现场生产流程为全泥氰化浸出工艺，为解决矿山面临的环保压力，实现清洁生产，探索新的选矿工艺替代现有全泥氰化浸出工艺。在工艺矿物学研究基础上，通过单一浮选、重选＋浮选选矿工艺流程对比，确定采用重选＋浮选工艺流程。结果表明：重选＋浮选工艺流程获得的重选精矿金品位3 034.60 g/t，浮选精矿金品位16.85 g/t，重选＋浮选金总回收率94.80 %，金回收指标与现场全泥氰化浸出工艺指标相当。对浮选精矿进行金硫分离探索试验，获得了金品位68.25 g/t、金作业回收率84.95 %的金精矿，硫品位42.21 %、含金3.25 g/t的硫精矿。研究结果为同类矿山实现清洁生产提供了参考借鉴。
关键词:
金矿；重选；浮选；金硫分离；全泥氰化
Abstract:
The content of the recoverable valuable element is gold in a gold ore and the grade is 1.78 g/t.The on-site production process is all-sliming cyanide leaching process.To solve the pressure of environmental protection challenges faced by the mine and realize green production,new ore-dressing processes are explored to replace the existing all-sliming cyanide leaching process.Based on process mineralogy research,the process flows of single flotation and gravity separation＋flotation were compared,and the latter was chosen.The test results show that the gravity separation＋flotation process obtained the gravity concentrate gold grade 3 034.60 g/t,flotation concentrate gold grade 16.85 g/t,and the gold total recovery of gravity separation and flotation is 94.80 %.The gold recovery index of gravity separation＋flotation process is similar to that of the on-site all-sliming cyanide leaching process.A gold concentrate with a gold grade of 68.25 g/t and gold recovery rate of 84.95 % and a sulfur concentrate with a sulfur grade of 42.21 % and gold content of 3.25 g/t were obtained by an experimental study on gold and sulfur separation of flotation gold concentrate.The research result provides some references for similar mines to realize green production.
Keywords:
gold mine;gravity separation;flotation;gold and sulfur separation;all-sliming cyanidation
