2-((5-Mercapto-1,3,4-thiadiazol-2-yl)thio)acetic acid as a novel chalcopyrite depressant for selective flotation separation of molybdenite from chalcopyrite

Pan, Cheng-Lin; Wei, Xiang-Xiang; Zhang, Xu-Gang; Xu, Yong-Wei; Xu, Pengfei; Luo, Yong‐Chun

doi:10.1016/j.mineng.2022.107625

Cited by 11 publications

(1 citation statement)

References 45 publications

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“…Therefore, organic depressants have become one of the research focuses in recent years because of their biodegradability, excellent selectivity, high flexibility, potential modifications, and rich sources. The adsorption mechanisms of multiple depressants such as L-cysteine [102], rhodanine-3-acetic acid [103], disodium carboxymethyl trithiocarbonate [104], thioglycolic acid [105], 3-amino-5-mercapto-1,2,4-triazole [106], 2-((5-mercapto-1,3,4-thiadiazol-2-yl)thio)acetic acid [107], and 5-amino-1,3,4-thiadiazole-2-thiol [108] on a chalcopyrite surface were studied using DFT supplemented with micro-flotation and bench-scale flotation experiments and various advanced characterization technologies, including ultraviolet-visible (UV-vis) spectroscopy, FTIR, contact angle and XPS analysis, time-of-flight secondary ion mass spectrometry (Tof-SIMS) measurements, adsorption capacity, and zeta potential measurements, which helped to offer a theoretical basis of the molecular design of organic depressants with respect to chalcopyrite.…”

Section: Copper Sulfide Mineralsmentioning

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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