发明名称 |
DEWATERING PROCESS |
摘要 |
<p>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, characterised 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).</p> |
申请公布号 |
WO2005095286(A1) |
申请公布日期 |
2005.10.13 |
申请号 |
WO2005EP02077 |
申请日期 |
2005.02.28 |
申请人 |
CIBA SPECIALTY CHEMICALS WATER TREATMENTS LIMITED;WHITTAKER, TONY;NORMAN, PETER;SMITH, DARRYL |
发明人 |
WHITTAKER, TONY;NORMAN, PETER;SMITH, DARRYL |
分类号 |
C02F1/56;C02F9/00;C02F11/14;(IPC1-7):C02F1/56 |
主分类号 |
C02F1/56 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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