细粒滑石对孔雀石硫化浮选的影响

doi:10.12068/j.issn.1005-3026.2022.05.015

东北大学学报（自然科学版） ›› 2022, Vol. 43 ›› Issue (5): 709-717.DOI: 10.12068/j.issn.1005-3026.2022.05.015

细粒滑石对孔雀石硫化浮选的影响

刘宇彤，印万忠，盛秋月，姚金

(东北大学资源与土木工程学院，辽宁沈阳110819)

修回日期:2021-07-08 接受日期:2021-07-08 发布日期:2022-06-20
通讯作者: 刘宇彤
作者简介:刘宇彤(1997-)，女，黑龙江哈尔滨人，东北大学硕士研究生; 印万忠(1970-)，男，浙江临安人，东北大学教授，博士生导师.
基金资助:
国家自然科学基金资助项目(51874072，51974064)；中央高校基本科研业务费专项资金资助项目(N2101025).

Effect of Fine Talc on Sulfurized Flotation of Malachite

LIU Yu-tong， YIN Wan-zhong， SHENG Qiu-yue， YAO Jin

School of Resources & Civil Engineering， Northeastern University， Shenyang 110819， China.

Revised:2021-07-08 Accepted:2021-07-08 Published:2022-06-20
Contact: YIN Wan-zhong
About author:-
Supported by:
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摘要/Abstract

摘要： 通过浮选试验发现细粒滑石的加入降低了孔雀石的硫化浮选可浮性，细粒滑石含量越多，对孔雀石的可浮性影响越大;通过Zeta电位测试、吸附量测试、SEM-EDS分析和EDLVO理论计算研究分析了细粒滑石影响孔雀石硫化浮选的原因.结果表明:适量的Na₂S在孔雀石矿物表面的吸附是其硫化-黄药浮选成功的关键，而细粒滑石会吸附罩盖在孔雀石矿物表面，且滑石矿物表面不会发生Na₂S的吸附，因此，细粒滑石减弱了孔雀石矿物表面的硫化效果，使其可浮性降低.

关键词: 孔雀石;滑石;浮选;吸附罩盖;EDLVO理论

Abstract: It is found that the addition of fine-grained talc reduces the floatability of malachite on sulfurized flotation by flotation test， and the higher the content of fine-grained talc， the greater the influence on the floatability of malachite.Zeta potential measurements， adsorption tests， SEM-EDS test and EDLVO theory calculation illustrated the reason for the influence of fine-grained talc on sulfurized flotation of malachite. The results show that the adsorption of appropriate amount of Na₂S on the surface of malachite is the key to the success of sulfidization-xanthate flotation. The fine-grained talc adsorbs on the surface of malachite， and the adsorption of Na₂S doesn’t occur on the surface of talc. Therefore， the fine-grained talc weakens the effect of sulfidization on the surface of malachite and reduces the floatability of malachite.

Key words: malachite; talc; flotation; adsorption cover; EDLVO theory

中图分类号:

TD923

刘宇彤，印万忠，盛秋月，姚金. 细粒滑石对孔雀石硫化浮选的影响[J]. 东北大学学报（自然科学版）, 2022, 43(5): 709-717.

LIU Yu-tong， YIN Wan-zhong， SHENG Qiu-yue， YAO Jin. Effect of Fine Talc on Sulfurized Flotation of Malachite[J]. Journal of Northeastern University(Natural Science), 2022, 43(5): 709-717.

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细粒滑石对孔雀石硫化浮选的影响

Effect of Fine Talc on Sulfurized Flotation of Malachite

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