Oxidative dissolution of gallium arsenide and separation of gallium from arsenic
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United States of America Patent
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Jul 26, 1988
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app pub date -
Feb 24, 1987
filing date -
Feb 24, 1987
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Abstract
Gallium is recovered from gallium arsenide by reacting and dissolving the gallium arsenide with an oxidant and a complexing agent, especially with water insoluble hydroxamic acids with mild conditions, e.g. with aqueous hydrogen peroxide and mild temperature, to effect separation of gallium hydroxamic acid chelates from water soluble arsenic compounds.
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