西南地区某铅锌矿重介质-浮选联合工艺分选试验研究  

Experimental Study on Separation of Heavy Medium-flotation Combined Process for a Lead-zinc Mine in Southwest China

作　　者：吕超 梁溢强 赵轩[4] 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)

机构地区：[1]共伴生有色金属资源加压湿法冶金技术国家重点实验室,云南昆明650031 [2]云南省选冶新技术重点实验室,云南昆明650031 [3]昆明冶金研究院,云南昆明650031 [4]东北大学资源与土木工程学院,辽宁沈阳110819

出　　处：《矿业研究与开发》2019年第3期33-37,共5页Mining Research and Development

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%.

关 键 词：铅锌矿石 重介质 浮选 选矿指标 

分 类 号：TD923[矿业工程—选矿]