| 阶段磨矿—异步浮选工艺回收某铜冶炼渣中的铜 |
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| 引用本文： | 王鹏程,王洪成,斗孙平,王帅,朱贤文.阶段磨矿—异步浮选工艺回收某铜冶炼渣中的铜[J].矿产保护与利用,2021,41(5):118-122. |
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| 作者姓名： | 王鹏程 王洪成 斗孙平 王帅 朱贤文 |
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| 作者单位： | 1.西部矿业集团科技发展有限公司, 青海 西宁 810006 |
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| 基金项目： | 青海省重大科技专项项目2018-GX-A7青海省企业技术创新项目2019-JC-10创新平台建设专项2020-ZJ-Y07 |
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| 摘 要： | 铜火法冶炼渣中铜品位为5.23%，具有良好的回收利用价值。原矿中铜矿物主要为冰铜和金属铜，脉石矿物主要为铁酸盐和铁橄榄石，还有大量的玻璃相。玻璃相的存在为选矿带来不利的影响。对该冶炼渣采用阶段磨矿—异步浮选工艺，在较粗的磨矿细度下优先回收可浮性较好的粗颗粒铜矿物，获得含铜45.36%、铜回收率81.65%的铜精矿，浮选尾矿再磨后回收细粒级的铜矿物，获得含铜13.65%、铜回收率13.74%的综合铜精矿，综合铜精矿含铜33.99%，含金3.42 g/t，含银79.17 g/t，铜回收率95.40%，金回收率85.94%，银回收率81.17%，该冶炼渣中的铜、金和银均得到较好的回收。
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| 关 键 词： | 铜冶炼渣 阶段磨矿 异步浮选 冰铜 |
| 收稿时间： | 2021-10-16 |
Investigation on Recovery of Copper from Smelting Slag by Asynchronous Flota-tion |
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| WANG Pengcheng,WANG Hongcheng,DOU Sunping,WANG Shuai,ZHU Xianwen.Investigation on Recovery of Copper from Smelting Slag by Asynchronous Flota-tion[J].Conservation and Utilization of Mineral Resources,2021,41(5):118-122. |
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| Authors: | WANG Pengcheng WANG Hongcheng DOU Sunping WANG Shuai ZHU Xianwen |
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| Affiliation: | 1.Technology Development of Western Mining Group Co., Ltd, Xining 810006, Qinghai, China2.Research Center of Nonferrous Mineral Resources of Engineering and Technology in Qinghai Province, Xining 810006, Qinghai, China3.Qinghai province key laboratory of Plateau Mineral Processing Engineering and Comprehensive Utilization, Xining 810006, Qinghai, China4.Tibet Yulong Copper Industry Co., Ltd., Changdu 854000, Tibet, China |
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| Abstract: | The copper grade in copper smelting slag is 5.23%, which has good recycling value. Copper minerals in the raw slag are mainly matte and metallic copper. The gangue minerals are mainly ferrite and iron olivine. There are a large number of glass phases. The existence of glass phase has an adverse impact on beneficiation. Asynchronous flotation process is adopted for the smelting slag to preferentially recover coarse-grained copper minerals with good floatability under coarse grinding fineness. The copper concentrate with copper content of 45.36% and copper recovery of 81.65% was obtained. Fine grained copper minerals are recovered after regrinding of flotation tailings. The comprehensive copper concentrate with copper content of 13.65% and copper recovery of 13.74% was obtained. The concentrate contains 33.99% copper, 3.42 g/t gold and 79.17 g/t silver. The recovery rate gold and silver are 95.40%, 85.94% and 81.17% respectively. The copper, gold and silver in the smelting slag are all well recovered. |
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