Recent Progress on Chelating Reagents in Flotation of Zinc Oxide Ores: A Review

Song, Zhengyong; Wen, Shuming; Han, Guang; Feng, Qicheng

doi:10.3390/min13101278

Cited by 4 publications

(2 citation statements)

References 74 publications

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“…Hydroxamic acids have been widely used as chelating-type collectors in recent years, mainly due to their selective formation of complexes with metal ions [27,28]. Among them, benzohydroxamic acid and salicylhydroxamic acid have been explored as collectors in the flotation of smithsonite [29]. But the application of a single collector often has its limitations, such as low selectivity and use of large amounts, and cannot achieve satisfactory results in the flotation of refractory minerals [30].…”

Section: Introductionmentioning

confidence: 99%

The Flotation Separation Mechanism of Smithsonite from Calcite and Dolomite with Combined Collectors

Chen,

Bai,

Zhang

et al. 2023

Minerals

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Smithsonite, dolomite, and calcite are carbonate minerals. The crystal structures and spatial distribution characteristics of their common surface metal sites are similar, leading to difficulty in the flotation separation of smithsonite from these carbonate gangues. In this paper, the floatability of smithsonite, dolomite, and calcite in sodium oleate, salicylhydroxamic acid, and their combined-collector system were systematically studied through single-mineral flotation tests, respectively. The results showed that it was difficult to obtain a noticeable recovery difference between smithsonite–calcite and smithsonite–dolomite in a single-collector system of sodium oleate and salicylhydroxamic acid, both at the same time. In the combined-collector system of salicylhydroxamic acid and sodium oleate with total dosage of 6 × 10−4 mol/L, molar ratio of 3:1, and pH of 8.0, the recovery difference of smithsonite–calcite and smithsonite–dolomite could reach the highest values of 38.46% and 37.98%, respectively, while obtaining the highest smithsonite recovery of 88.19%. The adsorption mechanism of the combined collectors was investigated via Fourier transform infrared spectroscopy, X-ray photoelectron spectroscopy, a collector adsorption test, and zeta potential measurements, respectively.

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Section: Introductionmentioning

confidence: 99%

The Flotation Separation Mechanism of Smithsonite from Calcite and Dolomite with Combined Collectors

Chen,

Bai,

Zhang

et al. 2023

Minerals

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“…Figure 1 illustrates the function and classification of the main flotation reagents. More specifically, information about flotation reagents for common minerals is open and readily available [7,[9][10][11]; therefore, they are summarized in Table S1 in the Supplementary Materials. readily available [7,[9][10][11]; therefore, they are summarized in Table S1 in the Supplementary Materials.…”

Section: Introduction 1classification Of Flotation Reagentsmentioning

confidence: 99%

Application of Quantum Chemistry in the Study of Flotation Reagents

Tang,

Chen,

Chen

et al. 2023

Minerals

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Flotation reagents are significant for modifying the interfacial characteristics of mineral grains to achieve the effective separation of minerals. Since the 1960s, when quantum chemistry was first introduced into the study of flotation reagents, many achievements have been made, although some controversial topics remain. The application of quantum chemistry in the research of flotation reagents for the separation of various minerals in the past decade is herein comprehensively and systematically reviewed. The main directions and gaps of current research are pointed out, the theoretical basis for the design and development of novel flotation reagents is summarized, and more importantly, the potential for the targeting design and development of efficient, selective, and environmentally friendly flotation reagent molecules by means of quantum chemistry is explored.

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