Process for separating arsenic from acid solutions which contain it
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United States of America Patent
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Apr 12, 1988
Grant Date -
N/A
app pub date -
Mar 26, 1987
filing date -
Aug 1, 1985
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A process for separating arsenic from acid aqueous solutions containing arsenic and other metal ions. The process involves bringing the acid aqueous solution into contact with a water-immiscible organic diluent consisting of hydrocarbons, alcohols or their mixtures, in which there is dissolved as solvent at least one polyol. The solvent thereby extracts the arsenic, which is then re-extracted with a counter-solvent.
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