Interaction mechanism of the adopted reagents in the flotation recovery of sphalerite and pyrite from a galena flotation tailing: First-principles calculations
发布时间：2022-04-12
点击次数：
影响因子：4.539
DOI码：10.1016/j.colsurfa.2021.126378
发表刊物：Colloids and Surfaces A: Physicochemical and Engineering Aspects
关键字：Sphalerite; Pyrite; Flotation separation; Cu2+; Butyl xanthate; Lime
摘要：Sphalerite (ZnS), galena (PbS) and pyrite (FeS2) are the important metallic sulphide minerals. These three sulphide minerals are often associated with each other, and large amounts of sphalerite and pyrite are lost in the galena flotation tailings. In this study, the flotation method was employed to recover sphalerite and pyrite from a galena flotation tailing waste. The reagent scheme, including Cu2+ activator and butyl xanthate (BX) collector, can efficiently recover sphalerite and pyrite to obtain a two-mineral mixed concentrate with the Zn and Fe grades of ∼17 % and ∼26 %, respectively, in the sphalerite-pyrite bulk rough flotation. Quicklime (CaO) depressant in combination with BX collector can efficiently separate sphalerite and pyrite to obtain the two products in the sphalerite/pyrite separation rough flotation: the sphalerite concentrate with the Zn grade of ∼33 % and the pyrite concentrate with the Fe grade of ∼36 %. The first-principles calculations were employed to study the interaction mechanism of the adopted reagents in the recoveries of sphalerite and pyrite from the galena flotation tailing. This study provides an important reference for the recoveries of sphalerite and pyrite from similar galena tailings.
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：617
是否译文：否
发表时间：2021-05-20
收录刊物：SCI
附件：