|
| 山东某含金磁黄铁矿浮选尾矿磁选回收试验研究 |
| Experimental study on the recovery of a gold-bearing pyrrhotite flotation tailings in Shandong by using magnetic separation technique |
| Received:August 30, 2022 |
| DOI： |
| 中文关键词: 磁黄铁矿 含金硫铁矿 全粒级磁选 强化回收 |
| 英文关键词: pyrrhotite gold-bearing pyrite full-grade magnetic separation enhanced recovery |
| 基金项目:辽宁省教育厅面上项目(LJKMZ20220650) |
| Author Name | Affiliation | | DONG Hongliang | Shandong Yantai Xintai Gold Mining Industry Co.Ltd., Yantai 265147, Shandong, China
School of Resources and Civil Engineering, Northeastern University, Shenyang 110000, China | | SUN Xiaoyan | School of Mining Engineering, University of Science and Technology Liaoning, Anshan 114001, Liaoning, China | | LI Wenbo | School of Resources and Civil Engineering, Northeastern University, Shenyang 110000, China | | WANG Hailong | Shandong Yantai Xintai Gold Mining Industry Co.Ltd., Yantai 265147, Shandong, China | | SONG Baoxu | School of Mining Engineering, University of Science and Technology Liaoning, Anshan 114001, Liaoning, China |
|
| Hits: 425 |
| Download times: 269 |
| 中文摘要: |
| 山东某含金磁黄铁矿原矿金品位1.60 g/t，硫品位1.86%，属含金硫铁矿。矿石性质研究结果表明，部分以磁黄铁矿为载体的金，矿物含量为0.96%，金品位8.25 g/t，原矿金分配率5.25%。生产流程对以磁黄铁矿为载体的金矿物的回收水平仍有提高空间。为了解决这一问题，开展了从生产原矿和生产尾矿中回收以磁黄铁矿为载体的金的对比试验，结果表明，磁选不宜用于原矿、重选不宜用于尾矿中载金磁黄铁矿的回收；尾矿磁选流程可以实现含金磁黄铁矿的有效富集，最终选择全粒级磁选工艺流程，获得了金品位1.52 g/t，硫品位2.87%的含金磁黄铁矿。尾矿金、硫回收率分别为52.09%、62.93%，对原矿回收率分别为12.27%、18.56%，实现了以磁黄铁矿为载体的金矿物的综合利用。 |
| 英文摘要: |
| A gold-bearing pyrrhotite ore in Shandong contains 1.60 g Au/t and 1.86% sulfur, belonging to gold-bearing pyrite. The research results of ore properties show that in some part of the ore gold is trapped in pyrrhotitein as the carrier with a mineral content of 0.96%, a gold grade of 8.25 g/t, and a gold distribution rate of 5.25%. The production process still has room for improvement in the recovery of gold minerals with pyrrhotite as the carrier. Thereforefore, a comparative test of recovering gold in pyrrhotite from raw ore and tailings was carried out. The results show that magnetic separation is not suitable for raw ore while gravity separation is not suitable for the recovery of gold-loaded pyrrhotite in tailings. However, for gold-bearing pyrrhotite, effective enrichment can be realized by using the magnetic separation process. Based on the results, the full-size magnetic separation process was selected and tested, producing a gold-bearing pyrrhotite with a gold grade of 1.52 g/t and a sulfur grade of 2.87%. The recovery rates of gold and sulfur were 52.09% and 62.93% from the tailings, respectively, and were 12.27% and 18.56% from the raw ore, suggesting the full-size magnetic separation is an effective process for comprehensive utilization of gold minerals with pyrrhotite as carrier. |
|
View Full Text
View/Add Comment Download reader |
| Close |
|
|
|