发明名称 |
Colloidal silica/polyelectrolyte blends for natural water clarification |
摘要 |
This invention relates to the clarification of natural waters containing turbidity-causing components. This method comprises the addition of a stable colloidal silica suspension and water based polymeric coagulant to the turbid water. The components of the invention may be added independently, or blended together so that addition is simultaneous. The colloidal silica may also be conditioned by passing over a cationic exchange resin prior to addition of cationic polymer.
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申请公布号 |
US5667697(A) |
申请公布日期 |
1997.09.16 |
申请号 |
US19960701224 |
申请日期 |
1996.08.21 |
申请人 |
NALCO CHEMICAL COMPANY |
发明人 |
SALMEN, KRISTINE S.;CHOO, PEK LEE;PICCO, DAVID A.;KOBAYASHI, MICHIO |
分类号 |
C02F1/52;C02F1/54;C02F1/56;D21H17/29;D21H17/45;D21H17/56;D21H17/68;(IPC1-7):C02F1/56 |
主分类号 |
C02F1/52 |
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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