separation gallium extraction

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 …

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 …

A 3-stage separation of gallium from zinc using liquid-liquid extraction in flow is presented in Fi gure 2 . In stage 1 (extraction), the aqueous feed consisted of a solution of 1 M ZnCl

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 …

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

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 …

Gallium was extracted and separated using 5-nonyl-2-hydroxyacetophenone oxime (NHAO), which was employed for the first time in this study. Traditional log D M -log [Extractant] analysis shows that the extractant has separated Ga as a complex of 2:1 …

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 …

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 ...

A method for the extraction of gallium(III) with LIX 26 in n-decanol as a moderator has been studied. The extraction of gallium(III) was found to be quantitative with 10 vol% LIX 26 (alkyl…

The extraction behavior of Al(III), Ga(III) and In(III) was investigated using bis(1,1,3,3-tetramethylbutyl)phosphinic acid (MBP) and its sulfur analogues, bis(1,1,3,3-tetramethylbutyl)monothiophosphinic acid (MTP) and bis(1,1,3,3-tetra-methylbutyl)dithiophosphinic acid (DTP) as extradants. A typical chelate extraction …

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 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 …

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 …

Gallium (Ga), indium (In), and germanium (Ge) play an important role in the modern high-tech material field. Due to their low content and scattered distribution in the crust, and the increasing demand for these metals in recent years, their supply risks have sharply increased. Therefore, the recycling of these metals is of great significance. In this work, a …

1. Introduction. Gallium, known as the food of the electronics industry, has become a vital support material for high technology [1], [2].Gallium is widely used in the semiconductor industry, 3C digital industry, solar cells, medicine and so on [3], [4].The booming electronics industry has further established the strategic position of gallium, …

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.

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

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 ...

Several techniques have been reported to recover gallium from its resources, such as fractional precipitation, electrochemistry, solvent extraction (Kinoshita et al., 2004, Thakare and Malkhede, 2014), ion exchange (Rao et al., 2003), and liquid membrane (Kumbasar and Tutkun, 2006). Owing to the limitations of the aforementioned techniques …

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 …

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 …

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 ).

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.

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 …

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 …

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 ...

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 …

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 …

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

Solvent extraction and stripping experiments have been performed to separate indium from gallium in sulfuric acid solutions. In the extraction process, the separation factor between indium and ...

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 ...

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.

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 ...

The aqueous biphasic system homogenizes upon cooling, which allows homogeneous liquid–liquid extraction of gallium from carbonated Bayer process …

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 ...

Decyl alcohol can effectively control the formation of the third phase, but the increase of its concentration will increase the amount of sodium extraction, resulting in …

A method is proposed for the extraction and individual separation of trivalent gallium, indium and thallium with sec-octylphenoxy acetic acid (CA-12), sec-nonylphenoxy acetic acid (CA-100) and naphthenic acid (NA) from chloride media.The distribution equilibria of gallium (III), indium (III), thallium (III) and thallium (I) between …