Role of tannin pretreatment in flotation separation of magnesite and dolomite

Gong, Xiufeng; Yao, Jin; Guo, Jun; Yang, Bin; Sun, Haoran; Yin, Wanzhong; Wang, Yulian; Fu, Yafeng

doi:10.1007/s12613-023-2708-4

Int J Miner Metall Mater

2024

DOI: 10.1007/s12613-023-2708-4

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Role of tannin pretreatment in flotation separation of magnesite and dolomite

Xiufeng Gong,

Jin Yao,

Jun Guo

et al.

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2024

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Cited by 6 publications

References 51 publications

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Effect of Surface Dissolution on the Floatability of Brucite in Three Anionic Collector Systems

Gong,

Yao,

Yin

et al. 2024

Surface & Interface Analysis

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This study investigated the relation between the solubility and floatability of the soluble mineral brucite, focusing on the concentration characteristics of dissolved Mg2+ in brucite under three dissolution methods and the surface characteristics after dissolution. Some common rules of brucite flotation in three anionic collectors were discovered. Results of a flotation test showed that for three anionic collector systems of sodium oleate, sodium dodecyl sulfonate, and oxidized paraffin soap, the flotation recovery rate of brucite increased with the time of dissolution and decreased with the removal of dissolved Mg2+, but the flotation recovery rate is lower than that of untreated brucite. Inductively coupled plasma spectroscopy indicated that the content of dissolved Mg2+ in brucite slurry increases with increasing brucite content or dissolution time. Zeta potential measurements showed that the ability of dissolved Mg2+ to increase the surface potential of brucite follows the order of H2SO4 action > HCl action > H2O action. Adsorption capacity measurements showed that the presence of dissolved Mg2+ after dissolution is not beneficial for the adsorption of the three collectors on the surface of brucite. The capacity of the adsorption collectors follows the order of brucite after H2O dissolution > brucite after HCl dissolution > brucite after H2SO4 dissolution. Scanning electron microscopy and X‐ray photoelectron spectroscopy analyses indicated that the surface dissolution promoted the dissolution of Mg2+ on brucite surface in the solution, reducing the number of Mg sites on brucite surface and deteriorating the collection effect of the collector.

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Effect of Surface Dissolution on the Floatability of Brucite in Three Anionic Collector Systems

Gong,

Yao,

Yin

et al. 2024

Surface & Interface Analysis

View full text Add to dashboard Cite

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Effect of Sodium Polyphosphate on the Flotation Separation of Brucite and Dolomite Using a Sodium Dodecyl Sulfonate Collector

Gong,

Yao,

Yang

et al. 2024

Mining, Metallurgy & Exploration

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Key technologies and development trends for efficient flotation recovery of lepidolite

Jiao,

Zhang,

Wei

et al. 2024

Green and Smart Mining Engineering

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Role of tannin pretreatment in flotation separation of magnesite and dolomite

Cited by 6 publications

References 51 publications

Effect of Surface Dissolution on the Floatability of Brucite in Three Anionic Collector Systems

Effect of Surface Dissolution on the Floatability of Brucite in Three Anionic Collector Systems

Effect of Sodium Polyphosphate on the Flotation Separation of Brucite and Dolomite Using a Sodium Dodecyl Sulfonate Collector

Key technologies and development trends for efficient flotation recovery of lepidolite

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