[PDF] Recovery of Gallium, Indium, and Arsenic from …
DOI: 10.1021/ACSSUSCHEMENG.9B01724 Corpus ID: 201226798; Recovery of Gallium, Indium, and Arsenic from Semiconductors Using Tribromide Ionic Liquids @article{VandenBossche2019RecoveryOG, title={Recovery of Gallium, Indium, and Arsenic from Semiconductors Using Tribromide Ionic Liquids}, author={Arne Van …
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Recovery of Indium and Gallium from Spent IGZO Targets …
Indium, gallium, and zinc oxide (IGZO) is a semiconducting material that is widely used in the manufacturing of semiconductors, touch panels, displays, etc. This work aims to shed some light on the recovery and separation of indium, gallium, and zinc from spent IGZO targets by solvent extraction (SX). The process involved leaching, SX in high …
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Recovery of gallium (and indium) from spent LEDs: Strong …
Indium and gallium recovery from spent CIGS PVs achieves over 90% extraction yields via H 2 SO 4 with citric acid-H 2 O 2 and alkali. Although bioleaching is slower than chemical leaching (several ...
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Recovery of indium and gallium from synthetic leach …
The use of two ionic liquids verified the indium recovery from the discarded LCD screen, and 99.7 % of indium ions were separated and extracted into the stripping solution. Recovery of gallium from leach solutions of zinc refinery residues by stepwise solvent extraction with N235 and Cyanex 272
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Efficient separation and recovery of gallium and indium in …
Spent copper indium gallium selenide (CIGS) materials are considered a viable resource for the recovery of Cu, In, Ga, and Se. The oxidative roasting-leaching-extraction separation scheme for the recovery of these valuable metals is proposed. Spent CIGS materials were first roasted to transform Cu, In, and Ga from selenides to oxides …
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Assessment of metal extraction from e-waste using …
The highest level of indium recovery efficiency was achieved at the optimum conditions, which included a 4 mol/L acidity level in the aqueous phase, an indium concentration of 197.79 ppm, an ionic ...
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Recovery of Gallium, Indium, and Arsenic from …
indium. For each particular experiment and element the best wavelength, with the least interference, was used to quantify the metal content. A blank sample was prepared, as well as three solutions containing 1, 5 and 10 mg L-1 of gallium, arsenic and indium. These samples were used to construct a c alibration curve.
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Recovery of gallium (and indium) from spent LEDs: Strong …
This work was financially supported by the SIDEREC project [siderophores assisted biorecovery of technology critical elements: gallium (Ga), germanium (Ge), and indium (In), from end-of-life products] in the frame of the ERA·MIN joint call 2018 on raw materials for sustainable development and the circular economy (Project ANR-19-MIN2-0001).
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Recovery technologies for indium, gallium, and …
The recovery of indium, gallium, and germanium from EoL products is currently carried out using different technologies such as pyrometallurgy, …
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Recovery of Gallium, Indium, and Arsenic from …
Leaching of semiconductors (GaN, GaAs, and InAs) and light-emitting diodes (LEDs) in a nonvolatile tribromide ionic liquid, and the selective recovery of gallium, indium, and arsenic from this ionic liquid were investigated. To prevent the formation of the highly toxic arsine (AsH3), usually formed when leaching metal arsenides with acids, the …
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The Separation and Recovery of Indium, Gallium, and Zinc …
A recovery process of indium, gallium, and zinc has been studied. The process was arranged to leach the targets by nitric acid and extract the rare metal individually. To optimized the separation ...
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Recovery of indium and gallium from synthetic leach …
@article{Nusen2016RecoveryOI, title={Recovery of indium and gallium from synthetic leach solution of zinc refinery residues using synergistic solvent extraction with LIX 63 and Versatic 10 acid}, author={Sankum Nusen and Torranin Chairuangsri and Zhaowu Zhu and Chu Yong Cheng}, journal={Hydrometallurgy}, year={2016}, volume={160}, …
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Recovery of Gallium, Indium, and Arsenic from
The leaching of semiconductors (GaN, GaAs and InAs) and LEDs in a nonvolatile tribromide ionic liquid and the selective recovery of gallium, indium and arsenic from this ionic liquid was investigated.
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New Technology for Indium, Germanium and Gallium Recovery …
A flowsheet for the recovery in an electrolytic zinc plant of In, Ge and Ga is given. Continuous experiments have shown that it is technically reliable, economically reasonable and novel in terms of a process to recover In, Ge and Ga from the zinc leach residue. ... New Technology for Indium, Germanium and Gallium Recovery in an Electrolytic ...
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Temperature dependence of negative bias under
Temperature dependence of negative bias under illumination stress and recovery in amorphous indium gallium zinc oxide thin film transistors Md Delwar Hossain Chowdhury; Md Delwar Hossain Chowdhury 1. Advanced Display Research Center and Department of Information Display, Kyung Hee University, Seoul 130-701, ...
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Separations and recovery of indium and gallium using …
Semantic Scholar extracted view of "Separations and recovery of indium and gallium using bis(2,4,4-trimethylpentyl)phosphinic acid (Cyanex 272)" by B. Gupta et al.
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Time-temperature dependence of positive gate bias stress and recovery …
We have analyzed the time-temperature dependence of positive bias stress (PBS) and recovery in amorphous indium-gallium-zinc-oxide (a-IGZO) Thin-film-transistors (TFTs) incorporating SiO2 back channel passivation. The data are fitted to stretched exponentials, yielding the time constant τ and stretch parameter β as fitting …
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Recovery of gallium from leach solutions of zinc refinery …
The development of CIGS faces problems; for example, many crucial metals, including indium and gallium, are used in CIGS production [8,10]. These elements are sparse on Earth and are complicated ...
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Separations and recovery of indium and gallium using …
The extraction of indium(III) and gallium(III) along with the associated metal ions from hydrochloric acid medium by bis(2,4,4-trimethylpentyl)phosphinic acid (Cyanex 272) has been studied.
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(PDF) Recycling and recovery of spent copper—indium—gallium…
Abstract and Figures. Copper—indium—gallium—diselenide (CIGS) is a fast-evolving commercial solar cell. The firm demand for global carbon reduction and the rise of potential environmental ...
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Recovery technologies for indium, gallium, and …
Indium and gallium recovery from spent CIGS PVs achieves over 90% extraction yields via H 2 SO 4 with citric acid-H 2 O 2 and alkali. Although bioleaching is …
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Recovery technologies for indium, gallium, and germanium …
Indium and gallium recovery from spent CIGS PVs achieves over 90% extraction yields via H 2 SO 4 with citric acid-H 2 O 2 and alkali. Although bioleaching is slower than chemical leaching (several days versus several hours), indirect bioleaching shows potential, achieving 70% gallium extraction yield. Solvent extraction and …
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Recent advances in the recovery of germanium during the …
With the substantial strategic value of germanium, scholars have done a lot of research on its comprehensive utilization. In 1969, the Port-Maghera (P-M) Electric Zinc Plant in Italy realized the method of simultaneous recovery of three valuable metals, gallium, germanium, and indium, from zinc leaching residues for the first time in the …
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Mechanism of positive bias stress-assisted recovery in amorphous-indium
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A Review on the Recovery and Separation of Gallium …
Gallium and indium are crucial metals in various industries, such as the medical and telecommunication industries. They can find applications as pure metals, …
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Efficient separation and recovery of gallium and …
Separation and Recovery of Valuable Elements from Spent CIGS Materials. A separation–recovery method was proposed in this study to recover valuable elements …
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Recovery of zinc, gallium and indium from La Oroya zinc …
Abstract. Process flowsheets for the recovery of zinc, indium and gallium from La Oroya zinc ferrite residue (19˙5%Zn, 26˙6%Fe, 0˙052%Ga, 0˙075%In) using Na 2 CO 3 roasting are proposed. While several leaching flowsheets are discussed, the flowsheet where zinc ferrite is roasted with Na 2 CO 3 and MnCO 3, followed by two stages of …
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Recovery technologies for indium, gallium, and germanium …
Indium and gallium recovery from spent CIGS PVs achieves over 90% extraction yields via H 2 SO 4 with citric acid-H 2 O 2 and alkali. Although bioleaching is slower than chemical leaching (several ...
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Clean and efficient recovery of gallium–indium alloy from gallium …
Under the optimal conditions (1–5 Pa; 1523 K; 120 min), the recovery rates of gallium and indium were 85.14 and 95.23 %, and the content of Ga–In alloy in the product was 99.46 %. Compared with the traditional hydrometallurgical process for recovering gallium and indium, this process generates no exhaust gas or waste.
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Recovery technologies for indium, gallium, and …
Indium and gallium recovery from spent CIGS PVs achieves over 90% extraction yields via H2SO4 with citric acid-H2O2 and alkali. Although bioleaching is slower than chemical leaching (several days versus several hours), indirect bioleaching shows potential, achieving 70% gallium extraction yield. Solvent
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