Activated silica sol
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United States of America Patent
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Nov 12, 1996
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N/A
app pub date -
Oct 27, 1995
filing date -
Oct 27, 1995
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Abstract
A stable activated silica sol is made by reacting sodium aluminum sulfate and a solution of silica. This solution removes suspended particles from aqueous streams rapidly and effectively. The silica sol is stable for many days and thus can be prepared off-site and transported to the point of use. Further, the activated silica or colloidal silica sol solution of the invention can be continuously added to water and waste water streams, or paper making pulps, stocks and furnishes, without danger of solidifying in the transport systems.
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