Removal of selenium (IV) and (VI) from acidic copper sulphate solutions
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United States of America Patent
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May 18, 1982
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N/A
app pub date -
Oct 24, 1980
filing date -
Aug 19, 1980
priority date (Note) -
Expired
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Abstract
A process for removing dissolved selenium IV values from an acidic aqueous copper sulphate solution includes passing the solution through a tubular member in a plug flow manner and injecting sulphur dioxide or a sulphite solution into the solution as it enters the tubular member. When the sulphate solution also contains dissolved selenium (VI) values, the ratio of dissolved selenium (IV) values to dissolved selenium (VI) values is preferably at least 3 to 1.
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