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 ...
The separation and recovery of gallium and indium from zinc refinery residue, using liquid−liquid extraction, has been investigated. The major components with the exception of zinc can be removed by extraction with tri-n-butyl phosphate at low aqueous acidity, and gallium and indium can be separated from the remaining major …
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
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 ...
The two most popular examples are eutectic gallium-indium (EGaIn, 75 wt% gallium and 25 wt% indium) with a melting point of 15.7 °C and Galinstan (a eutectic typically composed of 68 wt% of gallium, 22 wt% of indium and 10 wt% of tin) with a melting point of ≈11 °C. We note that the melting point of Galinstan is often reported at −19 °C ...
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 …
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.
DOI: 10.1016/j.jenvman.2023.119043 Corpus ID: 263244181; Recovery technologies for indium, gallium, and germanium from end-of-life products (electronic …
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 …
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.
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.
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 ...
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 …
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.
The separation and recovery of indium and gallium from discarded CIGS has recently attracted extensive attention. Thermal approaches (oxidation roasting (Gustafsson et al., 2014), and chlorination roasting (Gustafsson et al., 2015) are proposed to treat discarded CIGS. Anna et al. first separated selenium by oxidation roasting, and …
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 of indium and gallium, the pH value, concentration of extractant and stripping agents, organic-aqueous ratio and reaction time …
A proposed conceptual flowsheet for the recovery of indium and gallium from leach solutions of zinc refinery residues is shown in Fig. 14. The leachate is first neutralized using limestone to pH 2 and after solids/liquid separation, Cu(II) is then recovered using SX with LIX 984N or ion exchange (IX) with a chelating resin depending …
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 ...
DOI: 10.1016/j.seppur.2021.120087 Corpus ID: 243972797; Efficient separation and recovery of gallium and indium in spent CIGS materials @article{Hu2021EfficientSA, title={Efficient separation and recovery of gallium and indium in spent CIGS materials}, author={Die Hu and Bao-zhong Ma and Xiang Li and Yingwei Lv and Wenjuan Zhang …
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. The extraction profiles of indium(III) and gallium(III) have been investigated as a function of type and molarity of the acid, nature of organic diluent and …
Gallium (Ga) and indium (In) are rare metals widely used in the high-tech industry. Gallium-based liquid metal (G-LM) waste is produced during the preparation of liquid metal and related products. G-LM waste is a potential source of gallium and indium.In this study, the saturated vapor pressure, separation coefficient, and gas–liquid …
DOI: 10.1016/j.jclepro.2023.137053 Corpus ID: 258175760; Efficient separation and recovery of valuable gallium and indium from gallium-based liquid metal waste …
Sustainable gallium purification techniques include solvent extraction, ionic liquid extraction, and nanofiltration. 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. …
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 ...
The metal is usually present in electronic devices as gallium arsenide (GaAs), gallium nitride (GaN) or indium gallium nitride (InGaN) (Sturgill et al., 2000, Lu …
The recovery of indium, gallium, and germanium from EoL products is currently carried out using different technologies such as pyrometallurgy, …
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).
Commercial gallium recovery process employed in Guizhou branch of Chalco was summarized. ... light emitting diodes (LEDs) followed by the recovery of gallium (Ga) and indium (In) by strong acids leaching and selective leaching with desferrioxamine E (DFOE). The pre-treated spent SMD LED powder fraction (<500 μm) …
Separation and Recovery of Valuable Elements from Spent CIGS Materials. A separation–recovery method was proposed in this study to recover valuable elements …