Solvent Extraction of Indium with Trialkylphosphine Oxide from Sulfuric Acid Solutions Containing Chloride lon.

Inoue, Katsutoshi; Yoshizuka, Kazuharu

doi:10.1252/jcej.27.737

Cited by 12 publications

(4 citation statements)

References 6 publications

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“…Further, Ni and Zn could be separated and extracted with commercial extractants by adjusting the pH of SX feed [29,41]. Sn can be effectively extracted by using PC-88A diluted in EXXSOL D-80, or it can be extracted by coagulation when the optimal concentration in solution is achieved [42].…”

Section: Copper and Metal Impurities Distributionmentioning

confidence: 99%

Influence of Electrolyte Impurities from E-Waste Electrorefining on Copper Extraction Recovery

Djokić

Radovanović

Nikolovski³

et al. 2021

Metals

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In order to reflect possible issues in future sole e-waste processing, an electrolyte of complex chemical composition reflecting system of sole e-waste processing was obtained by following a specially designed pyro-electrometallurgical method. The obtained non-standard electrolyte was further used for the purpose of comprehensive metal interference evaluation on the copper solvent extraction (SX) process. Optimization of the process included a variation of several process parameters, allowing determination of the effect of the most abundant and potentially the most influential impurities (Ni, Sn, Fe, and Zn) and 14 other trace elements. Moreover, comparing three commercial extractants of different active chelating groups, it was determined that branched aldoxime reagent is favorable for Cu extraction from the chemically complex system, as can be expected in future e-waste recycling. The results of this study showed that, under optimal conditions of 20 vol.% extractant concentration, feed pH 1.5, O/A ratio 3, and 10-min phase contact time, 88.1% of one stage Cu extraction was achieved. Co-extraction of the Fe, Zn, Ni, and Sn was under 8%, while Pb and trace elements were negligible. Optimal conditions (H2SO4 180 g/L, O/A = 2, and contact time 5 min) enabled 95.3% Cu stripping and under 6% of the most influential impurities. In addition, an impurity monitoring and distribution methodology enabled a better understanding and design of the process for the more efficient valorization of metals from e-waste.

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Section: Copper and Metal Impurities Distributionmentioning

confidence: 99%

Influence of Electrolyte Impurities from E-Waste Electrorefining on Copper Extraction Recovery

Djokić

Radovanović

Nikolovski³

et al. 2021

Metals

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“…Extraction of indium(III) using phosphine oxide extractants Cyanex 925 and trioctylphosphine oxide (TOPO) has been studied [10,11].…”

Section: Solvent Extraction Research and Development Japan Vol 17mentioning

confidence: 99%

Synthesis of New Extractants Containing a Carboxylic Acid Group and Their Extraction Equilibria with Indium(III), Gallium(III) and Zinc(II)

Kai

Oshima

Baba

2010

SERDJ

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“…The potential toxicity of indium has been suggested, which also motivates study on the concentration of indium species from aqueous environments. Methods, such as chemical precipitation, solvent extraction, membrane filtration, electrochemical deposition, and adsorption, have been proposed so far for the concentration of indium(III) from water.…”

Section: Introductionmentioning

confidence: 99%

Highly Efficient Indium(III) Collection from Water by a Reaction with a Layered Titanate (Na₂Ti₃O₇)

2018

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The reaction of an aqueous solution of indium(III) chloride with a sodium titanate (Na 2 Ti 3 O 7 ) is investigated. The remaining amount of the indium(III) in the aqueous solution after the reaction with Na 2 Ti 3 O 7 has been examined to show the efficient collection of indium(III) from the aqueous solution. The maximum collected indium(III) amount for Na 2 Ti 3 O 7 is IntroductionDue to the developments of advanced optical, electronic, and magnetic devices, the use of various kinds of metals has become more important. Accordingly, the collection of metals from aqueous environments is an important issue, as a supply of metals. The practical uses of metals always accompany the release of metals to the environment, so that the collection of metals from the environment is a technology for environmental remediation. The removal of toxic metals, such as heavy metals and radioactive metals, for water purification and the collection of noble metals from environments have been examined extensively.The adsorption of target metals onto solids (adsorbents) is a way for their collection and for water purification. The collection of metal ions and metal-oxo anions onto various adsorbents by ion-exchange reactions have been examined to find suitable ion exchangers for specific target species to be collected. Inorganic ion exchangers are characterized by high cationexchange capacity and chemical stability for long-term use. [1] One can use nontoxic and environmentally benign inorganic ion exchangers, such as silicates, including clay minerals [2][3][4] and zeolites, [5,6] metal phosphates, [7] titanates, [8] and layered double hydroxides. [2,9,10] A wide variety of ion-exchangeable inorganic solids are available, although the mechanisms of the ion exchange are not fully elucidated. The reaction may include simple ion exchange, coordination, surface precipitation of polymeric species, and the dissolution of the ion exchangers and subsequent reconstruction.[a]

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Solvent Extraction of Indium with Trialkylphosphine Oxide from Sulfuric Acid Solutions Containing Chloride lon.

Cited by 12 publications

References 6 publications

Influence of Electrolyte Impurities from E-Waste Electrorefining on Copper Extraction Recovery

Influence of Electrolyte Impurities from E-Waste Electrorefining on Copper Extraction Recovery

Synthesis of New Extractants Containing a Carboxylic Acid Group and Their Extraction Equilibria with Indium(III), Gallium(III) and Zinc(II)

Highly Efficient Indium(III) Collection from Water by a Reaction with a Layered Titanate (Na₂Ti₃O₇)

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Solvent Extraction of Indium with Trialkylphosphine Oxide from Sulfuric Acid Solutions Containing Chloride lon.

Cited by 12 publications

References 6 publications

Influence of Electrolyte Impurities from E-Waste Electrorefining on Copper Extraction Recovery

Influence of Electrolyte Impurities from E-Waste Electrorefining on Copper Extraction Recovery

Synthesis of New Extractants Containing a Carboxylic Acid Group and Their Extraction Equilibria with Indium(III), Gallium(III) and Zinc(II)

Highly Efficient Indium(III) Collection from Water by a Reaction with a Layered Titanate (Na2Ti3O7)

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Highly Efficient Indium(III) Collection from Water by a Reaction with a Layered Titanate (Na₂Ti₃O₇)