云南某低品位铜镍硫化矿浮选试验

金属矿山 ›› 2014, Vol. 43 ›› Issue (03): 80-83.

云南某低品位铜镍硫化矿浮选试验

刘豹^1,2，孙乾予²，刘淼²，鲍雪²，王梓²

1.东北大学资源与土木工程学院，辽宁沈阳 110819；2.辽宁工程技术大学矿业学院，辽宁阜新 123000

出版日期:2014-03-15 发布日期:2014-04-28

Floatation Experiment on a Low Grade Cu-Ni Sulfide Ore from Yunnan Province

Liu Bao^1,2，Sun Qianyu²，Liu Miao²，Bao Xue²，Wang Zi²

1.College of Resources and Civil Engineering，Northeastern University，Shenyang 110819，China；2.School of Mining，Liaoning University of Engineering and Technology，Fuxin 123000，China

Online:2014-03-15 Published:2014-04-28

摘要/Abstract

摘要： 为给云南某低品位铜镍硫化矿石资源的开发利用提供依据，对该矿石进行了工艺矿物学研究和选矿试验。结果表明：①矿石中的主要有用元素为铜、镍，主要有用矿物为黄铜矿、镍黄铁矿、紫硫镍矿、含镍磁黄铁矿，铜镍主要以硫化物形式存在，分别占总铜、总镍的84.09%和85.96%，铜镍紧密共生，分离难度较大，宜采用混浮工艺回收铜镍；②矿石适宜的磨矿细度为-200目占80%，铜镍混浮粗选pH调整剂Na2CO₃、脉石矿物抑制剂CMC、镍矿物活化剂CuSO₄、捕收剂丁基黄药+硫氨酯适宜的用量分别为800、400、200、90+30 g/t；③采用1次粗选、3次扫选、扫精1扫精选、扫精选精矿与粗精矿合并1次精选、中矿顺序返回闭路流程处理该矿石，最终获得了铜镍品位分别为6.02%和3.97%、铜镍回收率分别为83.05%和84.55%的铜镍混合精矿。

关键词: 铜镍硫化矿, 紧密共生, 混合浮选

Abstract: In order to provide basis for exploitation and utilization of a low grade copper-nickel sulfide ore from Yunnan province，mineralogy and relevant mineral processing experiments on this ore was conducted.The results showed that：①The valuable elements of the ore are mainly copper and nickel，valuable minerals are mainly chalcopyrite，nicopyrite，violarite and nickel-bearing pyrrhotite.Copper and nickel mainly exist in the form of their sulfide，accounting for 84.09% and 85.96% separately，and copper and nickel are closely associated with each other and difficult to separate.Bulk flotation will be suitable to recover copper and nickel；②The optimal grinding fineness was 80% passing 200 mesh，and Na2CO₃，CMC，CuSO₄,and butyl-xanthate+thiamine ester were used as pH modifier，inhibitor of gangue minerals，activator for copper and nickel minerals，and collectors separately with corresponding proper dosage for bulk flotation of 800 g/t，400 g/t，200 g/t and 90+30 g/t；③Copper and nickel mixed concentrate with copper grade and recovery of 6.02% and 83.05%，nickel grade and recovery of 3.97% and 84.55% separately was achieved through process of one roughing，three scavenging，concentrate-scavenging for firstly scaveng concentrate，one cleaning for mixed concentrates of scaveng concentrate and rough concentrate，and middles back to the flowsheet in turn.

Key words: Copper-nickel sulfide mine, Close intergrowth, Bulk floatation

刘豹, 孙乾予, 刘淼, 鲍雪, 王梓. 云南某低品位铜镍硫化矿浮选试验[J]. 金属矿山, 2014, 43(03): 80-83.

LIU Bao, SUN Qian-Yu, LIU Miao, BAO Xue, WANG Zi. Floatation Experiment on a Low Grade Cu-Ni Sulfide Ore from Yunnan Province[J]. Metal Mine, 2014, 43(03): 80-83.

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