分步浮选提高甘肃某铜矿石选矿指标

金属矿山 ›› 2014, Vol. 43 ›› Issue (04): 95-98.

分步浮选提高甘肃某铜矿石选矿指标

邹丽萍，罗仙平，马鹏飞，杜显彦，马沛龙，李运强

江西理工大学资源与环境工程学院，江西赣州 341000

出版日期:2014-04-15 发布日期:2014-09-05
基金资助:
* 国家自然科学基金项目（编号：50704018，51374116），江西省科技支撑计划项目（编号：20111BBE50015）。

Improving Beneficiation Indexes for a Copper Ore from Gansu by Stage Flotation Process

Zou Liping，Luo Xianping，Ma Pengfei，Du Xianyan，Ma Peilong，Li Yunqiang

Faculty of Resource and Environmental Engineering，Jiangxi University of Science and Technology，Ganzhou 341000，China

Online:2014-04-15 Published:2014-09-05

摘要/Abstract

摘要： 甘肃某铜矿石含铜1.6%左右，铜主要以黄铜矿的形式存在，但黄铜矿单体解离性能欠佳且可浮性不一致，对分选不利。现场采用常规浮选工艺处理该矿石，虽能获得合格的铜精矿，但选矿指标不是十分理想。为此，针对矿石性质，以具有较好选择性的LP-01为快速浮选捕收剂、以具有较强捕收能力的Y-89为强化浮选捕收剂进行了分步浮选试验，同时模拟现场工艺进行了对比试验。结果表明：采用分步浮选工艺可获得铜品位为25.61%、铜回收率为83.58%的铜精矿1和铜品位为13.89%、铜回收率为12.36%的铜精矿2，两者合计，综合铜精矿铜品位为23.10%、铜回收率达95.94%；而采用现场工艺获得的铜精矿铜品位为21.86%%、铜回收率为93.88%。相比之下，分步浮选工艺使铜精矿铜品位提高了1.24个百分点、铜回收率提高了2.06个百分点，优越性明显。

关键词: 铜矿石, 黄铜矿, 分步浮选, 捕收剂LP-01, 捕收剂Y-89

Abstract: A copper ore in Gansu contains 1.6% copper, and copper mainly exists in form of chalcopyrite. However, poor single liberation degree and inconsistent floatability seriously affect the separation of chalcopyrite. Through the on-site conventional flotation process, qualified copper concentrate was received but its index is nonideal. Therefore, according to the properties of the ore, stage flotation tests are carried out with LP-01 with good selectivity as rapid flotation collector, Y-89 with good collecting ability as intensive flotation collector. Meanwhile, comparison tests with on-site simulation experiments were made. The results showed that by adopting the stage flotation process, copper concentrate 1 with Cu grade of 25.61% and copper recovery of 83.58% and copper concentrate 2 with Cu grade of 13.89% and copper recovery of 12.36% were obtained respectively. Taking together, the integrated copper concentrate is grading at 23.10% and its copper recovery rate reaches 95.94%; While by the on-site conventional process, copper concentrate with Cu grade of 21.86%% and copper recovery of 93.88% was received. In contrast, the stage flotation process improves Cu grade by 1.24%, and Cu recovery by 2.06% with obvious superiority.

Key words: Copper ore, Chalcopyrite, Stag flotation, Collector LP-01, Collector Y-89

邹丽萍, 罗仙平, 马鹏飞, 杜显彦, 马沛龙, 李运强. 分步浮选提高甘肃某铜矿石选矿指标[J]. 金属矿山, 2014, 43(04): 95-98.

ZOU Li-Ping, LUO Xian-Ping, MA Peng-Fei, DU Xian-Yan, MA Pei-Long, LI Yun-Qiang. Improving Beneficiation Indexes for a Copper Ore from Gansu by Stage Flotation Process[J]. Metal Mine, 2014, 43(04): 95-98.

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