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福建某锌精矿铜钼综合回收试验研究
- 周生海
- 作者单位：
- 紫金矿业集团股份有限公司
基金项目：
- 福建省科技计划项目(2017I1010)；厦门市留学人员科研项目（厦人社〔2022〕205号）
详细信息：
- 作者简介：
- 周生海(1979—)，男，工程师，从事选矿厂管理与实践工作；E-mail：shenghai.zhou@zijinmining.com
- 通讯作者：
- isnull
- PDF下载
Experimental study on copper-molybdenum comprehensive recovery from a zinc concentrate in Fujian
- English Author：
- Zijin Mining Group Co.,Ltd.
- Unit：
- 摘要
- 在线预览
- 参考文献
摘要:
福建某锌选矿厂的锌精矿含锌47.33 %、含铜1.29 %、含钼0.49 %，铜、钼一直未得到有效回收。针对该锌精矿，开展再磨脱药—铜钼混合浮选—铜钼分离流程试验研究，铜钼混合浮选采用一粗两扫三精—粗精矿再磨工艺流程，铜钼分离采用一粗一扫四精工艺流程。全流程闭路试验可得到含铜20.11 %、含金0.78 g/t、铜回收率65.9 %的铜精矿，含钼39.49 %、含铼18.28 g/t、钼回收率93.0 %的钼精矿，以及含锌49.53 %、锌回收率99.0 %的锌精矿，有效降低了锌精矿中铜、钼杂质含量，同时得到了铜精矿和钼精矿产品，实现了锌、铜、钼的高效分离。
关键词:
锌精矿；再磨脱药；混合浮选；铜钼分离；综合回收
Abstract:
The zinc concentrate of a zinc beneficiation plant in Fujian contains 47.33 % zinc,1.29 % copper,and 0.49 % molybdenum,with copper and molybdenum not effectively recovered.For this zinc concentrate,experimental research was conducted using a regrinding and agent removal-copper and molybdenum mixed flotation-copper and molybdenum separation process.The copper and molybdenum mixed flotation process employed a roughing stage,two scavenging stages,and three cleaning stages,followed by regrinding of the roughing concentrate,while the copper and molybdenum separation process included a roughing stage,a scavenging stage,and four cleaning stages.The closed-circuit test of the entire process yielded a copper concentrate containing 20.11 % copper and 0.78 g/t gold,with a copper recovery rate of 65.9 %;a molybdenum concentrate containing 39.49 % molybdenum and 18.28 g/t rhenium,with a molybdenum recovery rate of 93.0 %;and a zinc concentrate containing 49.53 % zinc,with a recovery rate of 99.0 %.This effectively reduced the impurities of copper and molybdenum in the zinc concentrate,while obtaining high-quality copper and molybdenum concentrates,achieving efficient separation of zinc,copper,and molybdenum.
Keywords:
zinc concentrate;regrinding and agent removal;mixed flotation;copper and molybdenum separation;comprehensive recovery
