Studies on extraction of gallium (III) from chloride solution using Cyphos IL 104 and its removal from photodiodes and red mud

Nayak, Sumitra; Devi, Niharbala

doi:10.1016/j.hydromet.2017.04.016

Cited by 36 publications

(9 citation statements)

References 29 publications

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“…As shown in Figure 2 , the reaction rate of Cyphos IL 104 extracting rare earth elements is rarely fast, which reaches equilibrium in 1 min. The results are in accordance with previous studies applying Cyphos IL 104 to the extraction of other metals [ 35 , 36 ]. To ensure the complete reaction, the contacting time of 10 min was chosen as the optimal parameter.…”

Section: Resultssupporting

confidence: 93%

“…Additionally, Cyphos IL 104 has shown the ability to extract Nd 3+ and separate trivalent lanthanides from each other [ 33 ]. In addition, extraction involving Cyphos IL 104 has also been successfully conducted on other metals [ 34 , 35 , 36 , 37 , 38 , 39 ]. These studies indicated that the properties of low vapor pressure, high thermal stability, and the high extraction efficiency of Cyphos IL 104 could overcome the shortcoming of conventional organic extractants.…”

Section: Introductionmentioning

confidence: 99%

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Recovery and Separation of Dysprosium from Waste Neodymium Magnets through Cyphos IL 104 Extraction

2022

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In the present study, the extraction of rare earth elements (REEs) from waste neodymium magnets using phosphorus ionic liquid Cyphos IL 104 was investigated. The objective was to recover and separate the heavy REE (Dy) from light REEs (Nd and Pr). Therefore, the experimental parameters of ionic liquid extraction, including contacting time, the initial pH value, extractant concentration, and O/A ratio, have been optimized. The highest separation factor αDy/Nd of 45.18 and αDy/Pr of 47.93 has been achieved. Following the ionic liquid extraction, the comparison of different stripping agents and the stripping parameters (the concentration of stripping agent and A/O ratio) were also explored. In short terms, this research demonstrates the optimal parameters of Cyphos IL 104 for selectively extracting high REE (Dy) and reveals its potential for recovering and separating REEs in real waste.

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Section: Resultssupporting

confidence: 93%

Section: Introductionmentioning

confidence: 99%

Recovery and Separation of Dysprosium from Waste Neodymium Magnets through Cyphos IL 104 Extraction

2022

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“…Cyphos 104 is an efficient extractant for the complete recovery of gallium(III), indium(III), zinc(II), and tin(II) from electronic waste, which is certainly important for both environmental and economic reasons. The extraction efficiency of gallium from 3 mol L −1 HCl can reach 99.8% [26], while the extraction of alkaline waste from LCD screen leach liquor resulted in indium(III), zinc(II), and tin(II) recovery with purities of 100%, 98.9%, and 100%, respectively [27]. The mechanism of indium extraction from chloride medium is described [27] by the following equation:…”

Section: Ionic Liquids Based On Phosphonium Cations For Metal Extractionmentioning

confidence: 99%

Ionic Liquids as Components of Systems for Metal Extraction

Yudaev

Chistyakov

2022

ChemEngineering

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This review addresses research and development on the use of ionic liquids as extractants and diluents in the solvent extraction of metals. Primary attention is given to the efficiency and selectivity of metal extraction from industrial wastewater with ionic liquids composed of various cations and anions. The review covers literature sources published in the period of 2010–2021. The bibliography includes 98 references dedicated to research on the extraction and separation of lanthanides (17 sources), actinides (5 sources), heavy metals (35 sources), noble metals, including the platinum group (16 sources), and some other metals.

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“…Ionic liquids (ILs) are an increasingly established class of extractant that are used either neat or diluted in a hydrophobic solvent to extract various metal ions from aqueous solutions [ 7 , 8 ]. ILs such as trioctylammonium chloride ([TOAH][Cl]) and methyltrioctylammonium chloride ([MTOA][Cl]) have been widely reported as reagents for the recovery of gallium and iron by solvent extraction [ 9 , 10 , 11 ]. Phase transport is achieved through the formation of charge-neutral supramolecular assemblies such as [MTOA][GaCl 4 ], with GaCl 4 − formed under high chloride conditions in the aqueous phase.…”

Section: Introductionmentioning

confidence: 99%

Reducing the Competition: A Dual-Purpose Ionic Liquid for the Extraction of Gallium from Iron Chloride Solutions

et al. 2020

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The separation of gallium from iron by solvent extraction from chloride media is challenging because the anionic chloridometalates, FeCl4− and GaCl4−, display similar chemical properties. However, we report here that the selective separation of gallium from iron in HCl solution can be achieved using the dual-purpose ionic liquid methyltrioctylammonium iodide in a solvent extraction process. In this case, the reduction of Fe3+ to Fe2+ by the iodide counterion was found to inhibit Fe transport, facilitating quantitative Ga extraction by the ionic liquid with minimal Fe extraction from 2 M HCl.

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Studies on extraction of gallium (III) from chloride solution using Cyphos IL 104 and its removal from photodiodes and red mud

Cited by 36 publications

References 29 publications

Recovery and Separation of Dysprosium from Waste Neodymium Magnets through Cyphos IL 104 Extraction

Recovery and Separation of Dysprosium from Waste Neodymium Magnets through Cyphos IL 104 Extraction

Ionic Liquids as Components of Systems for Metal Extraction

Reducing the Competition: A Dual-Purpose Ionic Liquid for the Extraction of Gallium from Iron Chloride Solutions

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