Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
July 13, 2010
Patent Application Number
10591878
Date Filed
February 28, 2005
Patent Primary Examiner
Patent abstract
A process of dewatering aqueous suspension employing a flocculating system comprising treating the suspension with a flocculating amount of a first flocculant and a dewatering amount of a second flocculant, and subjecting the suspension to mechanical dewatering to form a cake, wherein the first flocculant brings about flocculation and assists thickening of the suspension and the second flocculant is a water-soluble or water swellable polymer that is mixed into the suspension is a water-soluble or water swellable particulate polymer having a particle diameter of at least 20 microns.
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