The critical importance of pulp concentration on the flotation of galena from a low grade lead-zinc ore

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• 作者：Xianping Luo^a ; ^b ; Bo Feng^a ; ^b ; ^{fengbo319@163.com" class="auth_mail" title="E-mail the corresponding author} ; Cunjian Wong^a ; Jiancheng Miao^c ; Bin Ma^c ; Hepeng Zhou^a
• 关键词：Lead&ndash ; zinc sulfide ore ; Low grade ; Pulp concentration ; Flotation
• 刊名：Journal of Materials Research and Technology
• 出版年：2016
• 出版时间：April-June 2016
• 年：2016
• 卷：5
• 期：2
• 页码：131-135
• 全文大小：600 K

文摘

The Qixia orebody is a complex lead–zinc sulfide system with pyrite gangue and minor amounts of copper. In order to improve the flotation results, laboratory scale flotation testing of ore samples taken from this operation was performed. Flotation tests used a sequential recovery protocol for selective flotation of first the lead and thereafter the zinc. The key parameters that influence flotation performance of lead mineral were tested in this paper. The test data show that, for comparable collector, grinding time, flotation pH and solid-in-pulp concentration, the increase of solid-in-pulp concentration has the most significant effect on the recovery and selective separation of lead mineral. The increase of solid-in-pulp concentration from 27% to 55% makes the recovery of lead mineral increased from 60% to 80% and the lead grade increased from 27.5% to 29.1%.