云南某难选氧化铜矿浮—磁联合选矿试验

现代矿业 ›› 2018, Vol. 34 ›› Issue (09): 16-19.

云南某难选氧化铜矿浮—磁联合选矿试验

易运来

湖南有色金属研究院

出版日期:2018-09-25 发布日期:2018-10-16

Flotation-magnetic Separation Combined Beneficiation Experiment on a Refractory Oxidized Copper Ore in Yunnan Province

Yi Yunlai

Hunan Research Institute of Nonferrous Metals

Online:2018-09-25 Published:2018-10-16

摘要/Abstract

摘要： 为高效回收利用铜品位为1.28%的云南某氧化铜矿，根据原矿高氧化率、高结合率、嵌布粒度细的特点及不同含铜矿物可浮性和磁性的差异，试验研究采用先浮硫化铜后浮氧化铜—浮选尾矿强磁选的原则工艺流程。试验结果表明：在磨矿细度为-0.074 mm 84.5%的条件下，进行硫化铜1粗1扫2精浮硫化铜矿，硫化铜浮选尾矿再进行1粗3扫3精浮氧化铜矿，浮选尾矿通过磁选综合回收铜工艺，最终获得的硫化铜精矿铜品位为24.75%，铜回收率为33.03%；获得的氧化铜精矿铜品位为16.12%，回收率为39.25%；获得的磁选精矿铜品位为9.71%，铜回收率为12.50%；总精矿铜品位为16.77%，总铜回收率为84.78%，获得了满意的试验指标。 

关键词: 氧化铜, 高氧化率, 高结合率, 浮&mdash, 磁联合工艺

Abstract: In order to efficiently recycle a oxidized copper ore with copper grade of 1.28% in Yunnan,according to the raw ore properties of high oxidation rate,high binding rate and fine disseminated size,dressing test was carried out by using first sulfur after oxygen flotation-flotation tailings strong magnetic separation principle process flow.The results showed that under the condition of grinding fineness -0.074 mm 84.5%,via one roughing-two cleaning-one scavenging copper sulfide flotation-copper sulfide flotation tailings one roughing-three cleaning-three scavenging copper oxide flotation- flotation tailings magnetic separation comprehensive recover copper process flow,copper sulphide concentrate with copper grade of 24.75%,recovery rate of 33.03% and copper oxide concentrate with copper grade of 16.12%,recovery rate of 39.25% were obtained;copper grade of 9.71% and copper recovery rate of 12.50% were acquired;the copper grade and recovery rate of comprehensive concentrate were 16.77%,84.87% respectively,test indexes were satisfactory.

Key words: Copper oxide, High oxidation rate, High binding rate, Flotation-magnetic separation combined process

易运来. 云南某难选氧化铜矿浮—磁联合选矿试验[J]. 现代矿业, 2018, 34(09): 16-19.

YI Yun-Lai. Flotation-magnetic Separation Combined Beneficiation Experiment on a Refractory Oxidized Copper Ore in Yunnan Province[J]. Modern Mining, 2018, 34(09): 16-19.

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