A reagent scheme for galena/sphalerite flotation separation: Insights from first-principles calculations
发布时间：2022-04-12
点击次数：
影响因子：4.765
DOI码：10.1016/j.mineng.2021.106885
发表刊物：Minerals Engineering
关键字：Galena; Sphalerite; Flotation; Static calculation; Ab initio molecular dynamic simulation; Density functional theory
摘要：Galena (PbS) is an important and abundant source of lead (Pb) metal. It often coexists with other sulphide minerals such as sphalerite (ZnS). Flotation has been extensively used to separate galena and sphalerite. Herein, a reagent scheme comprising aerofloat collectors and Zn2+ and SO32− depressants is developed for the flotation separation of galena from sphalerite-rich sulphide ore. The flotation results demonstrate that Zn2+ and SO32− provide a synergistic depression effect on sphalerite and the aerofloat collectors exhibit more selectivity towards galena. Static calculations and ab initio molecular dynamics simulations were employed to investigate the mechanism of the adopted reagent scheme on galena/sphalerite flotation separation at the atomic scale. The reagent scheme used here has great potential for beneficiating other galena-containing sulfide ores. The calculation and simulation results can help in the design of novel collectors and depressants exhibiting excellent selectivity for the flotation separation of galena/sphalerite.
论文类型：期刊论文
通讯作者：田孟杰
学科门类：工学
一级学科：矿业工程
文献类型：J
卷号：167
是否译文：否
发表时间：2021-06-15
收录刊物：SCI
发布期刊链接：https://www.sciencedirect.com/science/article/pii/S089268752100114X#f0030
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