Synthesis of trimethylacetyl thiobenzamide and its flotation separation performance of galena from sphalerite

Jia, Yun; Yu, Zhongbo; Huang, Yaoguo; Chen, Linlin; Wang, Ming; Zhang, Yali

doi:10.1016/j.apsusc.2021.151055

Cited by 22 publications

(2 citation statements)

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“…Galena, PbS, is the most abundant lead mineral in nature, often associated with sphalerite, chalcopyrite, and pyrite, and thus, the flotation separation reagents for it are the invariable subject of research for many scholars. Ma et al [119], Jia et al [120], and Jia et al [121] synthesized novel collectors, including S-benzoyl-N,N-diethyldithiocarbamate (BEDTC), β-oxo thioamide surfactant 3-(ethylamino)-N-phenyl-3-thioxopropanamide (EAPh-TXPA), and trimethylacetyl thiobenzamide (TTBA), respectively, and investigated their interaction mechanisms in the flotation separation of galena and sphalerite via flotation tests, adsorption measurements, FTIR and XPS analyses, and DFT calculations. The results showed that all of these collectors have stronger collection powers than traditional collectors and have greater selectivity towards galena against sphalerite.…”

Section: Lead Sulfide Mineralsmentioning

confidence: 99%

“…The BEDTC acted as a bidentate ligand, bonding with galena Pb atoms through the carbonyl O and thiol S atoms to form two different adsorption geometries, one with two distinct Pb atoms to form a bullet-shaped complex, and the other with the same surface Pb atom to form a six-membered ring complex [119]. Whereas EAPhTXPA interactes with PbS by forming Pb-O, Pb-N, and Pb-S bonds [120], TTBA interacts with PbS via the formation of Pb-O and Pb-S bonds [121]. In addition, Zhang et al [122] developed a reagent scheme consisting of aerofloat collectors as well as Zn 2+ and SO 3 2− depressants for the flotation separation of galena from sphalerite-rich sulfide minerals.…”

Section: Lead Sulfide Mineralsmentioning

confidence: 99%

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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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Section: Lead Sulfide Mineralsmentioning

confidence: 99%