Processing to obtain high-purity gallium

Autor:	Renato G. Bautista
Rok vydání:	2003
Předmět:	Materials science Waste management Metallurgy General Engineering chemistry.chemical_element Scrap Substrate (electronics) Bayer process Refinery chemistry Fly ash General Materials Science Gallium Electrolytic process Flue
Zdroj:	JOM. 55:23-26
ISSN:	1543-1851 1047-4838
DOI:	10.1007/s11837-003-0155-2
Popis:	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 article describes how ultra-purification techniques can be employed to reduce the undesirable impurities to the low ppb range. The various procedures described give an idea as to the extent of work needed to obtain and prepare high-purity gallium for electronic application.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::54709b5cd61a8ed6e12f1ab767aeb5e0 https://doi.org/10.1007/s11837-003-0155-2 Zobrazit plný text záznamu Full text from SpringerLink