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剪切絮凝浮选工艺回收氰化尾渣中铜铅锌试验研究
- 作者：
- 杨俊彦|孙浩杰|李雪林|刘松鹏|闵红
- 作者单位：
- 枣庄学院机电工程学院|枣庄学院机电工程学院|招金矿业股份有限公司金翅岭金矿|招金矿业股份有限公司金翅岭金矿|枣庄学院机电工程学院
基金项目：
- 枣庄学院博士科研启动基金项目（BS1020717）；枣庄市科技发展计划项目（2020GX11）
详细信息：
- 作者简介：
- 杨俊彦（1986—），男，山东青岛人，讲师，博士研究生，研究方向为细粒浮选工艺及设备；山东省枣庄市市中区北安路，枣庄学院机电工程学院，277160；E-mail:yang8865139@163.com
- 通讯作者：
- E-mail:100527@uzz.edu.cn，13863297877
- PDF下载
Experimental research on copper,lead and zinc recovery from cyanide tailings residue by shear-flocculation flotation
- English Author：
- School of Machinery Engineering,Zaozhuang University|School of Machinery Engineering,Zaozhuang University|Jinchiling Gold Mine,Zhaojin Mining Industry Co.,Ltd.|Jinchiling Gold Mine,Zhaojin Mining Industry Co.,Ltd.|School of Machinery Engineering,Zaozhuang University
- Unit：
- 摘要
- 在线预览
- 参考文献
摘要:
氰化尾渣中通常含有铜、铅、锌等有用金属，具有回收价值。以山东某金矿氰化尾渣为研究对象，通过化学多元素分析、物相分析、粒度分析、矿物组成分析、单体解离度分析对氰化尾渣进行了工艺矿物学研究，结果表明：氰化尾渣粒度微细，-0.038 mm粒级占91.23 %，铅、铜、锌矿物主要为方铅矿、黄铜矿、闪锌矿，脉石矿物主要为石英。根据矿石性质确定采用“优先选铅—破氰—剪切絮凝选铜—破氰—剪切絮凝选锌”工艺综合回收铅、铜、锌矿物，分别进行了条件试验，确定了最优药剂用量。闭路试验得到铅精矿铅品位25.89 %、铅回收率77.67 %，铜精矿铜品位17.89 %、铜回收率66.45 %；锌精矿锌品位42.55 %、锌回收率75.00 %的良好指标。
关键词:
氰化尾渣；剪切絮凝浮选；破氰；综合回收；微细粒
Abstract:
Valuable metals that are worth recovering such as copper,lead and zinc are often contained in cyanide tailings.In the case study of cyanide tailings residue in a gold mine in Shandong,mineralogical study on the cyanide tailings residue is carried out in terms of chemical multi-element analysis,physical phase analysis,particle size analysis,mineral compositions analysis,monomer dissociation degree analysis.The results show that the cyanide tailings resi-due particle is microfine,with -0.038 mm accounting for 91.23 %,and the minerals of lead,copper and zinc are galena,chalcopyrite and sphalerite,gangue minerals are mainly quartz.According to the ore property,it is decided that preferential lead separation-cyanide breaking-shear-flocculation copper separation-cyanide breaking-shear-flocculation zinc separation process be used to comprehensively recover lead,copper and zinc minerals.Conditional tests are carried out separately to decide the optimal reagent dosage.Closed-circuit test can obtain lead concentrate with lead grade 25.89 %,lead recovery rate 77.67 %;copper concentrate with copper grade 17.89 %,copper recovery rate 66.45 %;zinc concentrate with zinc grade 42.55 %,zinc recovery rate 75.00 %,which are good indexes.
Keywords:
cyanide tailings residue;shear-flocculation flotation;cyanide breaking;comprehensive recovery;microfine
