Faculty of Land Resources Engineering, State Key Laboratory of Complex Non-ferrous Metal Resources Cleaning Utilization,
Kunming University of Science and Technology, Kunming, Yunnan 650093, China
Abstract:A selective flotation process of lead minerals was developed to a lead?zinc oxide ore in the eastern region of Yunnan Province, China. The flotation process with two roughing, one cleaning and one scavenging was adopted in the recovery of lead and zinc. The results showed that the valuable elements in the ore were lead, zinc and silver. The main minerals of lead cerussite and anglesite, zinc were smithsonite and hemimorphite respectively, and silver minerals associated mostly with lead minerals. The dissemination of valuable minerals was relatively fine. The lead concentrate grade was 61.45% with Pb recovery rate 86.41%, the grade of Ag was 451.58 g/t and the recovery rate was 66.73%, containing 3.68% Zn. The zinc concentrate grade was 42.32% and the recovery of Zn was 90.63%, containing 1.39% Pb. The amphoteric collector R144 showed better performance both in collecting ability and selectivity to zinc minerals than that of dodecylamine, octadecylamine and combined amines.
蔡锦鹏 宋凯伟 申培伦 李健民 刘殿文. 滇东某多金属氧化铅锌矿高效回收选矿工艺[J]. 过程工程学报, 2018, 18(3): 612-617.
Jinpeng CAI Kaiwei SONG Peilun SHEN Jianmin LI Ruizeng LIU Dianwen LIU?. High Efficient Recovery of Oxidized Lead?Zinc Minerals from a Multi-metal Ore in the Eastern Region of Yunnan Province. Chin. J. Process Eng., 2018, 18(3): 612-617.
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