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投稿时间：2019-09-03 修订日期：2019-09-13
投稿时间：2019-09-03 修订日期：2019-09-13
中文摘要: 在铜矿峪矿的浮选实践中发现,石灰用量与磨矿浓、细度是影响选矿厂最终浮选指标的两大因素。为降低尾矿品位,提高浮选回收率,本研究利用矿物解离度与粒度分布测试技术(MLA),研究了不同石灰用量与磨矿浓细度条件下各个产品中各种矿物的解离、粒度分布情况。研究表明,将石灰用量控制在1.6~1.8kg/t范围内,能够降低铜精矿中石英含量,提高精矿品位；将浮选浓度由35%提高至40%,能够明显降低尾矿品位,提高铜回收率。
Abstract:In the flotation process of the Tongkuangyu chalcopyrite ore, it was found that the lime dosage and the flotation slurry concentration were the two main factors that influence the flotation index. In order to decrease the grade of the tailings and increase the concentrate recovery, the paper studied the particle size distribution and the dissociation of the chalcopyrite in the concentrate and the tailings under different lime dosage and slurry concentration using MLA method. It was found that the quartz could be well depressed and the flotation concentrate grade could be increased when the lime dosage was controlled in the range of 1.6-1.8kg/t. It was also found that the tailings’ grade could be decreased when the flotation slurry concentration was lifted from 35% to 40%.
keywords: flotation lime slurry concentration copper ore
文章编号：20190903001 中图分类号：TD952 文献标志码：
基金项目:中国博士后科学基金(2018M640964,2019T120884)；陕西省教育厅专项科研计划项目(19JK0465)
引用文本：
闫国辉,柴垣民,黄英明,王子涛,陈王洋,陈伟.山西中条山铜矿浮选工艺改进研究[J].矿冶,2019,28(6):.
闫国辉,柴垣民,黄英明,王子涛,陈王洋,陈伟.山西中条山铜矿浮选工艺改进研究[J].矿冶,2019,28(6):.
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