摘要
我国西南地区某铅锌矿石含Zn 14.28%,含Pb0.44%。为提高选厂处理量,采用"重介质-浮选联合"流程,结果表明,1～13mm原矿经重介质预先富集,可以丢弃产率39.38%,含Zn 0.97%,含Pb 0.061%的尾矿。重介质分选精矿和0～1mm原矿合并经磨矿浮选得到的最终精矿指标为:Zn品位58.53%,Zn回收率94.68%,Pb品位1.65%;Pb回收率83.95%;Ag品位220.88g/t;Ag回收率91.52%。
A lead-zinc ore in southwest China contains 14.28% of Zn and 0.44% of Pb. In order to improve the handling capacity of the concentrator a heavy medium-flotation combined process was adopted. The results showed that the tailings w让h yield of 39.38%, Zn of 0.97 % and Pb of 0.061 % could be discarded after pre-enrichment on 1-13 mm raw ore by heavy medium process. The concentrate obtained from heavy medium separation and 0~l mm raw ore were mixed for grinding and flotation. And the final concentrate indexes were achieved as follows: Zn grade of 58.53%, Zn recovery of 94.68%, Pb grade of 1.65%, Pb recovery of 83.95%, Ag grade of 220.88 g/t and Ag recovery of 91.52%.
作者
吕超
梁溢强
赵轩
张晶
LV Chao;LIANG Yiqiang;ZHAO Xuan;ZHANG Jing(State Key Laboratory of Pressure Hydrometallurgical Technology of Associated Nonferrous Metal Resources, Kunming, Yunnan 650031,China;Yunnan Key Laboratory for New Technology of Beneficiation Metallurgy, Kunming, Yunnan 650031,China;Kunming Metallurgy Institute, Kunming, Yunnan 650031, China;School of Resources and Civil Engineering, Northeastern University, Shenyang, Liaoning 110819, China)
出处
《矿业研究与开发》
CAS
北大核心
2019年第3期33-37,共5页
Mining Research and Development
关键词
铅锌矿石
重介质
浮选
选矿指标
Lead-zinc ore
Heavy medium
Flotation
Separation index
