New discovery of unavoidable ions source in chalcopyrite flotation pulp: Fluid inclusions

Deng, Jiushuai; Wen, Shuming; Xian, Yongjun; Liu, Jian

doi:10.1016/j.mineng.2012.10.010

Cited by 28 publications

(7 citation statements)

References 21 publications

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“…investigated the adsorption behaviors of copper ions on the chalcopyrite surfaces and found a new viewpoint about self-activation of the copper ions. e same group also studied the types, structures, and compositions in natural pure chalcopyrite and measured the total concentrations of Cu (C CuT ) and Fe (C FeT ) released from the inclusions [18,19]. Zhang et al investigated the effect of Fe (III) ions on the flotation of spodumene, albite, and quartz minerals using sodium oleate (NaOL) and found Fe (III) as an activator for the flotation [20].…”

Section: +mentioning

confidence: 99%

Effect of Copper and Iron Ions on the Sulphidizing Flotation of Copper Oxide in Copper Smelting Slag

Pan

Peng

2018

Advances in Materials Science and Engineering

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e treatment of smelting slag has attracted much attention nowadays. is study investigates the influence of Na 2 S, CuSO 4 , and FeCl 3 on sulphidizing flotation of copper oxide. e results show that a proper Cu 2+ concentration can increase the sulphidizing effect of copper oxide, while Fe 3+ inhibits the sulphidizing effect. Further analysis shows that Cu 2+ ions can reduce the surface potential, increase the S 2− adsorption, then generate more polysulfide, and therefore promote the sulphidizing flotation. However, Fe 3+ ions would increase the surface potential, reduce the S 2− adsorption, generate more sulfur element, and therefore inhibit the sulphidizing flotation.

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Section: +mentioning

confidence: 99%

Effect of Copper and Iron Ions on the Sulphidizing Flotation of Copper Oxide in Copper Smelting Slag

Pan

Peng

2018

Advances in Materials Science and Engineering

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“…Therefore, to some extent, grinding media determines the flotation behavior of minerals (Li and Gao, 2017). It is well known that using the cast iron media in grinding has a detrimental effect on the flotation of sulfide minerals (Adam et al, 1984;Peng et al, 2003aPeng et al, , 2003bDeng et al, 2013;Long et al, 2020). Also, it is believed that using inert grinding media, such as ceramic and zirconia media, can improve the flotation recovery of sulfide minerals compared with cast iron media which results in the generation of iron oxyhydroxide species coating on the mineral surfaces (Huang and Grano, 2006;Bruckard, 2011;Corin et al, 2018;.…”

Section: Introductionmentioning

confidence: 99%

Effect of grinding media on the flotation behavior of fluorite using sodium oleate as a collector

Yao¹,

Li²,

Zhang³

et al. 2020

Physicochem. Probl. Miner. Process.

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Grinding, an essential procedure before flotation, to some extent, determines the flotation behavior of minerals. In this study, the effect of grinding media on the flotation behavior of fluorite using sodium oleate (NaOl) as a collector was investigated via micro-flotation experiments, zeta potential measurements, scanning electron microscopy-energy dispersive spectrometry (SEM-EDS) and X-ray photoelectron spectroscopy (XPS) analyses. The results indicated that, compared with the fluorite particles ground by ceramic media, the ones ground by cast iron media adsorbed less NaOl, resulting in lower flotation recovery. The lower flotation recovery of fluorite particles ground by cast iron media resulted from the coating of the hydrophilic Fe precipitates generated in the grinding, including Fe(0), Fe(OH)2, and Fe(OH)3 on their surfaces. These Fe precipitates may cover the Ca active sites and increase the hydration membrane which can inhibit the further NaOl adsorption. This research reveals the effect of grinding media on the flotation behavior of fluorite and guides for media selection in disposing of fluorite ore.

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“…Xanthate adsorption on sphalerite depends on the nature of the flotation pulp, e.g., the pulp pH, the ionic composition of the flotation water, and release of the components of fluid inclusions [7][8][9][10]. The adsorption process also depends on the properties of the sphalerite crystals, e.g., crystal lattice defects, and doping and substitution by impurity atoms [7,[11][12][13].…”

Section: Introductionmentioning

confidence: 99%

Mechanism Study of Xanthate Adsorption on Sphalerite/Marmatite Surfaces by ToF-SIMS Analysis and Flotation

et al. 2019

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In this work, the active sites and species involved in xanthate adsorption on sphalerite/marmatite surfaces were studied using adsorption capacity measurements, single mineral flotation, and time-of-flight secondary ion mass spectrometry (ToF-SIMS) analysis. The effects of Fe concentration on the xanthate adsorption capacity, Cu activation, and the flotation response of sphalerite/marmatite were determined. A discovery was that xanthate can interact with Fe atoms in the crystal of sphalerite/marmatite, as well as with Zn and Cu on the surface. We detected C2S2− fragment ions from dixanthogen, and dixanthogen may have been adsorbed on the surface of marmatite. The amounts of Cu and copper xanthate adsorbed on the marmatite surface were lower than those on the sphalerite surface, because Fe occupies Cu and Zn exchange sites. These results help to address the long-standing controversy regarding the products and mechanisms of xanthate adsorption on Fe-bearing sphalerite surfaces.

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New discovery of unavoidable ions source in chalcopyrite flotation pulp: Fluid inclusions

Cited by 28 publications

References 21 publications

Effect of Copper and Iron Ions on the Sulphidizing Flotation of Copper Oxide in Copper Smelting Slag

Effect of Copper and Iron Ions on the Sulphidizing Flotation of Copper Oxide in Copper Smelting Slag

Effect of grinding media on the flotation behavior of fluorite using sodium oleate as a collector

Mechanism Study of Xanthate Adsorption on Sphalerite/Marmatite Surfaces by ToF-SIMS Analysis and Flotation

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