Method for producing aqueous, low-alkali metal, low-alumina silica sols
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United States of America Patent
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Nov 25, 1986
Grant Date -
N/A
app pub date -
Dec 10, 1984
filing date -
Dec 10, 1983
priority date (Note) -
Expired
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Abstract
A method for producing an aqueous silica sol is described, comprising admixing a fine silica powder having an ultimate particle size of 5 to 200 millimicrons with an aqueous medium at a pH not higher than 5 while applying ultrasonic vibrations having a frequency within the range of from 10 to 100 kilohertz to the aqueous medium to thereby disperse said silica powder in said aqueous medium and thus convert the mixture into an aqueous sol.
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