Process for the dewatering of aqueous suspensions
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United States of America Patent
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Jul 13, 2010
Grant Date -
Aug 16, 2007
app pub date -
Feb 28, 2005
filing date -
Mar 12, 2004
priority date (Note) -
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Abstract
A process of dewatering an aqueous suspension comprising treating the suspension with a dewatering amount of a reverse phase polymer, and subjecting the suspension to a mechanical dewatering to form a cake, characterised in that the reverse phase polymer only partially inverts to bring about flocculation and thickening of the suspension, and then fully inverts during the further dewatering to form a cake.
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