提高某低品位铜矿石选铜回收率试验研究

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英文篇名：Test study on improvement of copper recovery ratio of a low-grade copper ore 作者：黄子令 ; 李广 ; 王金庆 ; 温建 英文作者：HUANG Ziling;LI Guang;WANG Jinqing;WEN Jian;Heilongjiang Duobaoshan Copper Co., Ltd.;Zijin Mining Group Co., Ltd.;State Key Laboratory of Comprehensive Utilization of Low-grade Refractory Gold Ores (Zijin Mining Group Co., Ltd.); 关键词：粗磨 ; 快速浮选 ; 异步浮选 ; 粗精矿再磨 ; 铜回收率 ; 新工艺 英文关键词：rough grinding;;rapid flotation;;asynchronous flotation;;re-grinding of rough concentrate;;copper recovery ratio;;new process flow 中文刊名：KSJX 英文刊名：Mining & Processing Equipment 机构：黑龙江多宝山铜业股份有限公司;紫金矿业集团股份有限公司;低品位难处理黄金资源综合利用国家重点实验室(紫金矿业); 出版日期：2019-06-10 出版单位：矿山机械 年：2019 期：v.47;No.546 语种：中文; 页：KSJX201906013 页数：6 CN：06 ISSN：41-1138/TD 分类号：50-55

摘要

针对福建某低品位铜矿石,通过对矿物性质及原工艺流程的诊断分析,采用"粗磨—快速浮选—快浮尾矿异步浮选—粗精矿再磨再选"的联合工艺,能有效保证了已解离的目的矿物优先回收,同时还使得难选铜矿物及含铜连生体矿物得到充分回收。新工艺流程获得了含铜24.09%、含金6.48 g/t、铜回收率为92.69%、金回收率为60.54%的铜精矿,铜回收率提高了3.87个百分点,金回收率提高了13.61个百分点。
        After the diagnosis and analysis on mineral properties and original process flow of a low-grade copper ore from Fujian, the process flow involving rough grinding, rapid flotation, asynchronous flotation of tailings of rapid flotation, re-grinding and re-separation of rough concentrate in sequence was applied to effectively ensure the preferential recovery of dissociated target minerals as well as ample recovery of refractory copper minerals and copper-bearing coenobium minerals. After application of the new process flow, the copper concentrate with copper content of 24.09%, gold content of 6.48 g/t, copper recovery ratio of 92.69% and gold recovery ratio of 60.54% was obtained. Thus the copper recovery ratio increased by 3.87 percentage points, and the gold recovery ratio increased by 13.61 percentage points.

引文

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