Gallium solvent extraction in hydrometallurgy: An overview

Mihaylov, I.; Distin, P.A.

doi:10.1016/0304-386x(92)90062-5

Cited by 74 publications

(37 citation statements)

References 38 publications

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“…Gallium in the solution was extracted as GaCl 4 − [25][26][27], as shown in Equation (13). The concentration of major elements in the acid leachate after evaporation is shown in Table 3.…”

Section: Solvent Extractionmentioning

confidence: 99%

Recovery of Gallium from Corundum Flue Dust by Two-Stage Alkali Leaching, Carbonation, Acid Leaching and Solvent Extraction Process

Kang

Jiang

Zhou

et al. 2018

Metals

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Flue dust generated during the process of manufacturing corundum is a carrier of critical metal gallium. In this study, a process of alkali leaching-carbonation-acid leaching-solvent extraction was developed to recover and enrich gallium from corundum flue dust. Over 93% of the gallium in corundum flue dust could be recovered through a two-stage alkali leaching process, which consists of 120 min of concentrated alkali leaching in NaOH solution and a subsequent 30-min dilute alkali leaching (after dilution), with an alkali-to-ore mass ratio of 1.2:1. Liquid to solid ratios in two alkali leaching stages were 1.5:1 and 8:1, respectively. The carbonation process was employed to remove high-level Si in alkali leachate. After carbonation and HCl leaching, over 96% of gallium in the NaOH leachate could be dissolved into acid solution. After extracting gallium from the HCl leachate using N235 as extracting agent, 1% NaOH solution was used to strip gallium from the organic phase. The extraction and stripping efficiency of gallium was over 99% and 97%, respectively.

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Section: Solvent Extractionmentioning

confidence: 99%

Recovery of Gallium from Corundum Flue Dust by Two-Stage Alkali Leaching, Carbonation, Acid Leaching and Solvent Extraction Process

Kang

Jiang

Zhou

et al. 2018

Metals

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“…For the purpose of separating gallium in aqueous solutions, solvent extraction as well as ion exchange is often used. 1,2 Typical extractants for gallium(III) are 8-quinolinol derivatives, 3,4 organophosphorus compounds, 5 alkyl amines and quaternary ammonium salts. 6,7 The extractants are all used by diluting them in organic molecular solvents.…”

Section: Introductionmentioning

confidence: 99%

Extraction of Gallium(III) from Hydrochloric Acid Solutions by Trioctylammonium-based Mixed Ionic Liquids

et al. 2012

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“…The comparison of the results for CCFS and SX highlights the excellent performance of CCFS in the selective recovery of the target metal from metal mixtures. From the aspect of chloride hydrometallurgy, Ga SX has attracted attention [131,132], and studies using amines [131] and TBP proved the potential.…”

Section: Recovery Of Gallium From a Leach Liquor From Zinc Refinery Rmentioning

confidence: 99%

Foam Separation of Metal Ions and the Potential ‘Green’ Alternative to Solvent Extraction

Kinoshita

Nii

2012

SERDJ

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Foam separation has been applied to recover or remove various substances from dilute aqueous solutions in various industries because it is an environment-and cost-friendly process. The literature has been reviewed focusing on the separation of metal ions.From an operational point of view, various methods are discussed for the removal of metal ions from solution, and on the selective recovery of a specific target metal ion.The former applications are designed to purify industrial effluents, and the performance of foam separation is well proven. The latter examples are aimed at recovering valuable metals, which has been shown to be difficult due to the inherent problem of contamination in foam separation. An operation mode was developed to overcome this problem and to enhance the selectivity for separating a specific target metal from solutions containing multi-metals. The method, called continuous counter-current foam separation, was developed, and its performance was demonstrated by the experimental results for Ga(III) separation. Since both high selectivity and recovery was obtained by this method, foam separation is potentially a "solvent-free" alternative to solvent extraction.

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Gallium solvent extraction in hydrometallurgy: An overview

Cited by 74 publications

References 38 publications

Recovery of Gallium from Corundum Flue Dust by Two-Stage Alkali Leaching, Carbonation, Acid Leaching and Solvent Extraction Process

Recovery of Gallium from Corundum Flue Dust by Two-Stage Alkali Leaching, Carbonation, Acid Leaching and Solvent Extraction Process

Extraction of Gallium(III) from Hydrochloric Acid Solutions by Trioctylammonium-based Mixed Ionic Liquids

Foam Separation of Metal Ions and the Potential ‘Green’ Alternative to Solvent Extraction

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