Applied Surface Science 442 (2018) 92–100 Contents lists available at ScienceDirect Applied Surface Science journal homepage: www.elsevier.com/locate/apsusc Full Length Article The role of S(II) and Pb(II) in xanthate ﬂotation of smithsonite: Surface properties and mechanism Kai Jia, Qiming Feng, Guofan Zhang , Wanying Ji, Wukai Zhang, Bingqian Yang School of Mineral Processing and Bioengineering, Central South University, Changsha 410083, Hunan, China ar ti c l e i nf o ab stra ct Article history: Smithsonite is a readily dissolvable carbonate mineral that is naturally hydrophilic, making recovery of Received 7 November 2017 this ore by ﬂotation difﬁcult. The ﬂotation results showed that conditioning with only sodium sulﬁde Revised 7 February 2018 (Na S) did not successfully allow the smithsonite samples to ﬂoat, whereas treatment with a combination Accepted 12 February 2018 of S(II), Pb(II) and xanthate (with Na S as the sulfurizing reagent, lead ions (Pb(II)) as the activator, and Available online 14 February 2018 xanthate as the collector) improved the ﬂotation of smithsonite, achieving a mass recovery of 95.8%. A combination of analytical techniques, including X-ray diffraction (XRD), atomic force microscopy Keywords: (AFM) and X-ray photoelectron spectroscopy (XPS), in conjunction with depth proﬁling, was used to Smithsonite investigate
Applied Surface Science – Elsevier
Published: Jun 1, 2018
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