Difference of solidophilic atoms in collectors: Enlightenments for flotation separation of spodumene and feldspar

Zhou, Hepeng; Xie, Fang; X, Luo; Zhang, Boyuan; Yang, Siqi; Zhang, Yongbing

doi:10.1016/j.apsusc.2023.156363

Cited by 11 publications

(3 citation statements)

References 38 publications

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“…From the actual results of the closed-circuit flotation study on real mineral samples, a recovery and Li 2 O concentration grade of 67.82% and 5.13% were achieved with NaOL, and 75.14% and 5.77% with BAA, indicating the feasibility of flotation using BAA. They concluded that compared to NaOL, the solidophilic oxygen atoms of BAA possess a stronger electronegativity, resulting in a higher adsorption capacity on the surface of spodumene and, consequently, a greater collecting ability [ 69 ].…”

Section: Relevant Sectionsmentioning

confidence: 99%

Molecular Design and Spodumene Flotation—A Review

Retamal,

Robles,

Quezada

et al. 2024

IJMS

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Spodumene flotation stands as the most commonly used method to concentrate lithium minerals. However, it faces significant challenges related to low collector recoveries and similarity in the surface characteristics of the minerals, which make the effective separation of this valuable mineral difficult. For this reason, numerous researchers have conducted studies to address and confront this problem. In this work, an exhaustive bibliographic search was carried out using keywords and search queries, and the results were structured in three sections according to temporal, methodological, and thematic criteria. The first section covers the period from 1950 to 2004, focusing on experimental tests. The second section covers from 2004 to the present and focuses on flotation tests and measurement analysis. Simultaneously, the third section spans from 2011 to the present and is based on molecular dynamics simulations. Topics covered include spodumene surface properties, the influence of metal ions, pre-treatment techniques, and the use of collectors. Ultimately, molecular dynamics simulations are positioned as a tool that accurately represents experimental phenomena. In this context, specialized software such as Materials Studio or Gromacs prove to be reliable instruments that allow a detailed study of mineral surfaces and other elements to be carried out, which justifies their consideration for future research in this scientific field.

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Section: Relevant Sectionsmentioning

confidence: 99%

Molecular Design and Spodumene Flotation—A Review

Retamal,

Robles,

Quezada

et al. 2024

IJMS

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“…By combining experiments with DFT calculations, the flotation behaviors and adsorption mechanisms of collectors including oleic acid [241][242][243], arsenic acid (BAA) [243], and a mixture of OL and DDA [244] on a spodumene surface were uncovered. The results showed that the oleic acid anion is adsorbed on the spodumene surface through the formation of a multicomponent ring [242].…”

Section: Other Minerals 81 Lithium-bearing Mineralsmentioning

confidence: 99%

“…Compared with oleic acid, the electronegativity of the solidophilic O atoms of BAA is stronger, with the strength of the C-O bond being greater than that of the As-O bond. Hence, when BAA is adsorbed on the mineral surface, the bonding strength of solidophilic O atoms to the adsorption sites is higher [243]. Moreover, a certain amount of DDA is able to significantly enhance the adsorption of NaOL on the spodumene (001) surface, and its interaction mechanism involves the bonding of DDA ions to oleate and the subsequent adsorption on the surface Al sites.…”

Section: Other Minerals 81 Lithium-bearing 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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