Processing to obtain high-purity gallium

From: JOM | Date: March 1, 2003| Author: | Copyright information

Overview

Gallium has become increasingly popular as a substrate material for electronic devices. Aside from ore, gallium can be obtained from such industrial sources as the Bayer process caustic liquor that is a byproduct of bauxite processing, flue dust removed from the fume-collection system in plants that produce aluminum by the electrolytic process, zinc refinery residues, gallium scrap materials, and coal fly ash. The purification process for gallium can start with solvent-extraction processes where the concentrations of impurities, especially metals, are reduced to the ppm range. This ...

Read all of this article with a FREE trial to HighBeam Research

Related newspaper, magazine, and trade journal articles from HighBeam Research

(Including press releases, facts, information, and biographies)

What price neutrinos: Russian science. (supply of gallium at the Soviet-American Gallium Experiment is being stolen, thereby affecting research and detection of neutrinos)(Brief Article)
; ...collaboration called the Soviet-American Gallium Experiment, or SAGE (no-one can quite...heart of the detector is a metal called gallium-60 tonnes or, perhaps more pertinently...liable to vanish unless it is nailed down. Gallium is particularly difficult to nail down...
Canadian company considers Nevada gallium mine
; ...DEVELOPMENT High technology has caused the gallium market to take off. So, to take advantage...a detailed study of its Painted Hills gallium and rare earth property in Humboldt County...50 million and $100 million worth of gallium to make development a possibility. That...
War Eagle Completes Successful First Phase Investigation Into the Recovery of Germanium and Gallium From Coal Flyash in Spain
; ...into the recovery of germanium (Ge) and gallium (Ga) from flyash generated at the ELCOGAS...rather less germanium, but up to 76% of gallium over a six hour leach period and the average...shown conclusively that germanium and gallium can be recovered from the flyash and that...
Geo to Increase Gallium Capacity.
; ...Specialty Chemicals Inc. will construct a new gallium metal extraction facility in Pinjarra...expanding its capacity to extract and purify gallium metal, says George Ahearn, the company...solidify our position as a world leader in gallium production. The communications business...
Gold Canyon Receives Cordero Resource Estimate: 337,360 Kilograms Gallium Indicated; 384,640 Kilograms Gallium Inferred
; ...Report and resource estimate for its Cordero Gallium Project located in Humboldt County, Nevada...Cordero to contain 337,360 kilograms of gallium in an indicated category and 384,640 kilograms of gallium in an inferred category. Table 1 Cordero...
Uptake of gallium-67 in transfected cells and tumors absent or enriched in the transferrin receptor
; Gallium-67 has been a controversial tumor-imaging agent in nuclear...This controversy centers on why tumors are variable in gallium-avidity, whether 67Ga uptake is a transferrinindependent...content. The uptake of 67Ga, both as a citrate salt and as a gallium-transferrin complex, was examined in these pairs ...
General Minerals Corporation Identifies Anomalous Indium and Gallium Zones at the Malku Khota Silver Project
; ...sections of drill core for indium and gallium. Previously, those drill cores were analyzed...system are also anomalous in indium and gallium. Indium prices recently have ranged between...kilogram (US$0.20- US$1.00 per gram) and the gallium price has ranged between US$330- US$400...
GEO Expands Gallium Extraction Capacity At Its Site in Germany.(Brief Article)(Statistical Data Included)
; ...the electronics chemicals and materials market as a whole, GEO Gallium SA is expanding the capacity of its gallium plant in Stade, Germany, by more than 50 percent. Virgin gallium metal is used in the compound semiconductor, telecommunications...
Recovery of gallium from Bayer liquor using ion exchange technique - a case study
; Abstract Gallium adsorption studies were carried out using synthesized hydroxamic...establish the suitable conditions for the preferential extraction of gallium. The kinetics of gallium adsorption was found to be higher than vanadium. Using the data...
Gold Canyon Reports Greater Than 90% Recovery of Gallium at Cordero
; ...recoveries in excess of 90% of the contained gallium from mineralized rock at the Company's Cordero gallium project located in north-central Nevada...recovery ranges from 91.6 to 96.8% of the total gallium contained in mineralization at Cordero...