Foam control during production of phosphoric acid
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United States of America Patent
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-
Jul 5, 1983
Grant Date -
N/A
app pub date -
Aug 18, 1981
filing date -
Aug 18, 1981
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Foam generated during the digestion of phosphate rock is removed from the slurry either by overflow, mechanical sweeps, or by vacuum from strategically located nozzles connected to vacuum lines. The foam, after liquefaction, is returned to the filter where it results in improved filtration and return of soluble P.sub.2 O.sub.5.
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Cited Art Landscape
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