Brown corundum dust, which is created during the manufacturing of brown corundum using bauxite as the raw material, is a vital carrier of gallium. To ascertain the presence of the contained gallium, the brown corundum dust was measured and characterized (XRF, XRD, ICP-OES, EPMA, SEM-EDS, etc.). Gallium was extracted …

Recovery of Gallium-68 and Zinc from HNO3-Based Solution by Liquid–Liquid Extraction with Arylamino Phosphonates. ... 99% of gallium was recovered in 5 min [17]. Cyanex 301 (bis (2,4,4 ...

The absence of gallium in the sample is due to the separation of pure gallium in liquid form. The presence of gallium oxide may be due to the oxidation of liquid gallium ... Electrochemical extraction and separation of praseodymium and erbium on reactive magnesium electrode in molten salts. J. Solid State Electrochem., 19 (2015), pp. …

The separation order of indium (III), gallium (III) and zinc (II) from sulphate solution with extraction resin is found that indium (III) can be first separated by adsorbing at 1.0 mol·L-1 ...

An aminophosphonate extractant, di(2-ethylhexyl) (N, N′-di(2-ethylhexyl) amino methyl) phosphonate (abbreviated as L) was synthesized and applied for the extraction and separation of gallium and indium from chloride solution.The maximum separation factors SF Ga/In reached 995, which is higher than those obtained with its …

A rapid method for the extraction separation of gallium(III) with PC-88A in toluene has been studied. The extraction of gallium(III) was found to be quantitative with 0.025 M PC-88A in toluene in ...

This work investigates the separation of gallium and arsenic from the wafer grinding extraction solution. The wafer grinding extraction solution was generated using hot and concentrated nitric acid. In this study, adsorption technology was employed to remove the toxic arsenic from the extraction solution. Ferric hydroxide was the adsorbent ...

Wafer grinding extraction solution was passed through a supported liquid membrane (SLM) that contained PC88A (2-ethylhexyl phosphonic acid mono 2-ethylhexyl ester) as a carrier, to separate gallium from arsenic by selective permeation. The SLM separation process was conducted under various condition …

The selective extraction, separation, and recovery of gallium (Ga), one of the critical elements, is essential due to its role in clean energy technologies and its low reserves.

Although complete separation of In(III) from Ga(III) is possible using ion exchange or solvent-impregnated resins/gels, these methods are limited in industrial …

Extraction and separation of gallium, indium and thallium with several carboxylic acids from chloride media. Talanta (2003) K. Zhang et al. Recovery of gallium from strong acidic sulphate leach solutions of zinc refinery residues using a novel phosphate ester extractant. Hydrometallurgy

A rapid method for the extraction separation of gallium(III) with PC-88A in toluene has been studied. The extraction of gallium(III) was found to be quantitative with 0.025 M PC-88A in toluene in the pH range 2.0–3.0. Gallium(III) extracted in the organic phase was stripped with 2.0 M HCl and was determined spectrophotometrically by the …

Given that gallium is a low-temperature liquid metal with a melting point of 29.8 °C and can be well recycled, it is a promising liquid cathode material. ... The main purpose of this paper is to study the extraction and separation of key fragment elements based on the electrolytic refining process of spent fuel dry reprocessing. Firstly, the ...

Hydrometallurgical processes, such as solvent extraction and ion exchange, are the main processes for the separation of gallium from these associating elements. 8,10,12−14 While established, these processes usually require multiple separation stages due to the similar affinity of these compounds to extractants and ion exchangers.

Extraction and separation of gallium, indium and thallium with several carboxylic acids from chloride media Talanta, 59 ( 2003 ), pp. 905 - 912, 10.1016/S0039-9140(02)00646-X View PDF View article View in Scopus Google Scholar

A novel method for selective separation of gallium from its ores has been devised. • Characterization analysis confirmed the loading of Ga on the extractant. • 5 …

3.2.3. Mass balance. A mass balance was performed with the amounts of Ga before and after the extraction experiments, and it was found that although the percentage of Ga recovered was about , the amount of Ga recovered from 5 g of iron tailing is low (65 ± 2.23 μg) ( Table 6 ).

gallium; indium; recovery; WEEE; secondary resources; leaching; sorption; extraction; separation; recycling. 1. Introduction. Over the past decades, there has …

The separation of gallium from iron by solvent extraction from chloride media is challenging because the anionic chloridometalates, FeCl 4− and GaCl 4−, display similar chemical properties.

It can be indicated that the leaching, separation, and purification procedure have alternative processes, while electrowinning is an indispensable procedure in metal gallium production [].However, gallium electrowinning currently suffers from severe concentration polarization and hydrogen evolution reaction (HER), which causes low …

ABSTRACT Considering the growing demand for In(III) and Ga(III) for the manufacture of advanced materials, it is necessary to develop efficient separation processes for recovery of these metals from primary and secondary resources. In the present work, separation of In(III) and Ga(III) from different aqueous mediums by …

A study of liquid-liquid extraction behavior of gallium (III), indium (III), and thallium (III) with Cyanex-925 (Bis-2,4,4-trimethyl pentyl-n-octyl phosphine oxide) was undertaken. Both gallium (III) and indium (III) were coextracted in the pH range 4.0–5.0 while thallium (III) was extracted between pH 2.0 and 4.0. The gallium, indium, and …

And then extracting with the organic phase of 3% hydroximic acids+10% bis(2-ethylhexyl)hydrogen phosphate-kerosene from the raffinate of indium-extraction, above 90% of germanium, gallium and iron ...

Gallium extraction into TOPO [ 16,20,21 ] has not been studied as extensively as with TBP. ... Ketones Although ketones may be used in analytical procedures for gallium separation, particularly from sulphate …

Solvent extraction has been developed into one of the most effective methods for the extraction and separation of gallium and indium from acidic solutions because of its high efficiency, large handling capacity, simple operation and large scale and continuous production capability. The extractant having high selectivity is the key in …

It provides reference for the extraction and recovery of gallium from these secondary resources. As one of the rare metals, gallium enjoys vast application in the field of fiber communication, aerospace and electronic technique. Demand has far outstripped supply of gallium along with the development of the electronics industry.

The manufacture of semiconductor materials containing gallium and indium requires the separation of these metals owing to their coexistence in the resources of these materials. In this work, solvent extraction of In(III) and Ga(III) from a hydrochloric acid solution by ionic liquids (ILs) was investigated to separate them. The ILs were …

1. Introduction. Gallium and germanium are important strategic resources that have been used extensively in a variety of high-technology fields, such as semiconductors, infrared optics, optical fibers, medicine and catalysis (Schimmel et al., 2001, Tyszczuk et al., 2007, Depuydt et al., 2006, Fujiwara et al., 2003).So far, no independent germanium and …

The key factors influencing separating gallium from other metal ions in the solution by the solvent extraction, liquid membrane extraction, extraction leaching resin extraction …

The output of HCl is modest, whereas the other three can strip more than 90% of gallium from the loaded organic phase. Nayak and Devi studied the activity of gallium (III) extraction in an acidic ...