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.
申请公布号
WO2005095292(A1)
申请公布日期
2005.10.13
申请号
WO2005EP02078
申请日期
2005.02.28
申请人
CIBA SPECIALTY CHEMICALS WATER TREATMENTS LIMITED;WHITTAKER, TONY;NORMAN, PETER;SMITH, DARRYL