Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Tony Whittaker0
Darryl Smith0
Peter Norman0
Date of Patent
July 6, 2010
0Patent Application Number
105917770
Date Filed
February 28, 2005
0Patent Primary Examiner
Patent abstract
A process of dewatering an 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 further dewaters the suspension, characterized in that the second flocculant is a water-soluble or water swellable polymer that is mixed into the suspension in the form of aqueous composition comprising dissolved or hydrated polymer having a Brookfield viscosity of above 30,000 cps (measured at 20° C.).
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