Process for the removal of vanadium from wet process phosphoric acid
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United States of America Patent
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Dec 15, 1992
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N/A
app pub date -
Jun 6, 1990
filing date -
Jun 6, 1990
priority date (Note) -
Expired
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Abstract
A process for removal of vanadium from wet process phosphoric acid comprising the steps of; (i) adsorbing an anionic pentavalent complex of vanadium, derived from the wet process phosphoric acid, onto an anion exchange resin or into an organic layer; and (ii) reducing the vanadium complex to trivalent and/or tetravalent vanadium so as to selectively strip vanadium from the anion exchange resin or from the organic layer.
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