Method of removing potassium hydroxide from crystallized potassium ferrate (VI)
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United States of America Patent
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Dec 8, 1981
Grant Date -
N/A
app pub date -
Oct 6, 1980
filing date -
Oct 6, 1980
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Potassium ferrate (VI), K.sub.2 FeO.sub.4, which has been crystallized from a concentrated aqueous solution of KOH is washed with an aqueous solution of a potassium salt of an inorganic acid to remove the residual KOH. The wash solution is at an alkaline pH and contains a high concentration of the potassium salt.
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