Extraction and separation of cobalt(II), copper(II) and manganese(II) by Cyanex272, PC-88A and their mixtures

Wang, Fuchun; He, Fanghui; Zhao, Junmei; Sui, Na; Xu, Lin; Liu, Huizhou

doi:10.1016/j.seppur.2012.03.018

Cited by 84 publications

(31 citation statements)

References 20 publications

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“…While solvent extraction has industrial applications in the recovery and purification of metals from lixiviation liquors and residues of materials [21], few works have proposed solvent extraction to recover cobalt [22,23], copper [24], and other metals of spent batteries [25]. This work focused on the recovery of cobalt by solvent extraction, measuring the effect of parameters such as time, pH, and concentration of the extractant.…”

Section: Anode Cathodementioning

confidence: 99%

Recovery of Cobalt from Spent Lithium-Ion Mobile Phone Batteries Using Liquid–Liquid Extraction

et al. 2019

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The aim of this paper was to propose and test a continuous cobalt recovery process from waste mobile phone batteries. The procedure started with dismantling, crushing, and classifying the materials. A study on leaching with sulfuric acid and hydrogen peroxide was carried out with subsequent selective separation of cobalt by means of liquid–liquid extraction. The best extraction conditions were determined based on a sequence of experiments that consisted of selecting the best extractant for cobalt, then assessing the impact of extractant concentration, pH, and contact time on the extraction yield. With these conditions, an extraction isotherm was obtained and correlated with a mathematical model to define the number of extraction stages for a countercurrent process using the McCabe–Thiele method. Then, a similar study was done for stripping conditions and, as a last step, cobalt electroplating was performed. The proposed process offers a solution for the treatment of these batteries, avoiding potential problems of contamination and risk for living beings, as well as offering an opportunity to recover valuable metal.

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Section: Anode Cathodementioning

confidence: 99%

Recovery of Cobalt from Spent Lithium-Ion Mobile Phone Batteries Using Liquid–Liquid Extraction

et al. 2019

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“…The separation/purification of cobalt and manganese is hardly achieved by the hydrometallurgical method because cobalt and manganese have similar chemical properties. However, several methods, such as leaching by ammonia-ammonium carbonate [2,3], precipitation [4][5][6] and solvent extraction [7][8][9][10][11][12][13], have been reported for the separation/purification of cobalt and manganese.…”

Section: Introductionmentioning

confidence: 99%

Application of Co and Mn for a Co-Mn-Br or Co-Mn-C2H3O2 Petroleum Liquid Catalyst from the Cathode Material of Spent Lithium Ion Batteries by a Hydrometallurgical Route

Joo

Shin

et al. 2017

Metals

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Abstract:We investigated the preparation of CMB (cobalt-manganese-bromide) and CMA (cobaltmanganese-acetate) liquid catalysts as petroleum liquid catalysts by simultaneously recovering Co and Mn from spent Li-ion battery cathode material. To prepare the liquid catalysts, the total preparation process for the liquid catalysts consisted of physical pre-treatments, such as grinding and sieving, and chemical processes, such as leaching, solvent extraction, and stripping. In the physical pre-treatment process, over 99% of Al was removed from material with a size of less than 0.42 mm. In the chemical process, the leaching solution as obtained under the following conditions: 2 mol/L sulfuric acid, 10 vol % H 2 O 2 , 0.1 of solid/liquid ratio, and 60 • C. In the solvent extraction process, the optimum concentration of bis (2,4,4-trimethylpentyl) phosphinic acid (Cyanex 272), the equilibrium pH, the degree of saponification, the organic phase/aqueous phase ratio isotherm, and the stripping study for the extraction of Co and Mn were investigated. As a result, Co and Mn were recovered by 0.85 M Cyanex 272 with 50% saponification in counter current two extraction stages. Finally, a CMB and CMA liquid catalyst containing 33.1 g/L Co, 29.8 g/L Mn, and 168 g/L Br and 12.67 g/L Co, 12.0 g/L Mn, and 511 g/L C 2 H 3 O 2 , respectively, was produced by 2 M hydrogen bromide and 50 vol % acetic acid; it was also found that a shortage in the concentration can be compensated with cobalt and manganese salts.

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“…However, difficulties still remain in the separation of Co(II) from Mn(II), which is often present in natural and secondary cobalt resources . Commercial organophosphorous extractants, such as PC‐88A (2‐ethylhexylphosphonic acid mono‐2‐ethylhexyl ester) and Cyanex 272 (bis(2,4,4‐trimethylpentyl) phosphinic acid) are typically used in hydrometallurgy for Co(II) separation, however, these extractants are also selective for Mn(II) . Cyanex 301 (bis‐(2,4,4‐trimethylpentyl)dithiophosphinic acid), which includes a sulfur atom in its molecule, appears to be the only extractant capable of selectively extracting Co(II) in the presence of Mn(II).…”

Section: Introductionmentioning

confidence: 99%

Separation of cobalt(II) from manganese(II) using a polymer inclusion membrane withN-[N,N-di(2-ethylhexyl)aminocarbonylmethyl]glycine (D2EHAG) as the extractant/carrier

Baba

Kubota

Goto

et al. 2015

J. Chem. Technol. Biotechnol.

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Extraction and separation of cobalt(II), copper(II) and manganese(II) by Cyanex272, PC-88A and their mixtures

Cited by 84 publications

References 20 publications

Recovery of Cobalt from Spent Lithium-Ion Mobile Phone Batteries Using Liquid–Liquid Extraction

Recovery of Cobalt from Spent Lithium-Ion Mobile Phone Batteries Using Liquid–Liquid Extraction

Application of Co and Mn for a Co-Mn-Br or Co-Mn-C2H3O2 Petroleum Liquid Catalyst from the Cathode Material of Spent Lithium Ion Batteries by a Hydrometallurgical Route

Separation of cobalt(II) from manganese(II) using a polymer inclusion membrane withN-[N,N-di(2-ethylhexyl)aminocarbonylmethyl]glycine (D2EHAG) as the extractant/carrier

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