Understanding the role of sodium hydroxide in the selective flotation separation of spodumene from feldspar and quartz

Zhu, Guangli; Zhao, Yuehao; Zheng, Xiayu; Wang, Yuhua; Lu, Dongfang

doi:10.1016/j.mineng.2020.106648

Cited by 13 publications

(2 citation statements)

References 16 publications

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“…The -Si-O- bond on the spodumene surface was easier to be break than the -Al-O- bond, so that more Si component are transferred to the liquid phase, and Al component accumulates on the surface, thereby increasing the adsorption capacity of collector on the spodumene [14] . Moreover, the surface of gangue minerals such as feldspar and quartz in the slurry cannot be selectively dissolved, which increases the difference in floatability between them and spodumene [15] .…”

Section: Introductionmentioning

confidence: 99%

Ultrasonic pretreatment of spodumene with different size fractions and its influence on flotation

Chu

Chen

et al. 2022

Ultrasonics Sonochemistry

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The potential of ultrasonic pretreatment enhancing selective surface dissolution to improve the floatability of spodumene with different size fractions was verified and investigated. For coarse particles of −0.15 + 0.0385 mm, compared with traditional pretreatment methods, ultrasonic pretreatment could optimize the physicochemical properties of the surface, markedly increased the amount of NaOL adsorbed on the mineral surface, and improved the floatability of the spodumene. For fine particles of −0.0385 mm, both pretreatment methods (Ultrasonic and Traditional) could greatly increase the flotation recovery, but ultrasonic pretreatment had no obvious advantage compared with traditional method. ICP combined with XPS analysis were conducted to investigate the dissolution mechanism of spodumene surface in different pretreatment system. Si species on the surface of coarse particles were easily dissolved into the solution under the effect of ultrasound, which increases the relative content of Al and Li species on the surface. This was conducive to the adsorption of the collectors on the surface. However, the selective dissolution of the fine particle surface was weakened by excessive energy intake in the ultrasonic system, which neutralized the advantage brought by the large amount of dissolution, making the results obtained by the two preprocessing methods the same.

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Section: Introductionmentioning

confidence: 99%

Ultrasonic pretreatment of spodumene with different size fractions and its influence on flotation

Chu

Chen

et al. 2022

Ultrasonics Sonochemistry

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“…They concluded that NaOH does not affect the particle size distribution of spodumene, feldspar, and quartz. However, it is beneficial for separating spodumene from other minerals because it can increase collector adsorption on the mineral surface [ 55 ].…”

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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Flotation separation of spodumene and albite with activation of calcium ion hydrolysate components

Zhang

Zhou

et al. 2022

Rare Met.

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Understanding the role of sodium hydroxide in the selective flotation separation of spodumene from feldspar and quartz

Cited by 13 publications

References 16 publications

Ultrasonic pretreatment of spodumene with different size fractions and its influence on flotation

Ultrasonic pretreatment of spodumene with different size fractions and its influence on flotation

Molecular Design and Spodumene Flotation—A Review

Flotation separation of spodumene and albite with activation of calcium ion hydrolysate components

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