Amorphous alkali metal silicate process and uses

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United States of America Patent

PATENT NO 5693304
SERIAL NO

08456633

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Abstract

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A particulate amorphous alkali metal silicate is prepared by heating a mixture of silicate glass and water or aqueous solution to a temperature of about 300.degree.-400.degree. C. to provide a foamed material that is easily formed into particles of less than 20 microns. After careful hydration, a product having 1-15% water based on loss of ignition (LOI) of product at 800.degree. C. is produced that controls the activity of magnesium in solutions and is, therefore, a useful detergent ingredient.

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Patent Owner(s)

Patent OwnerAddress
PQ CORPORATIONVALLEY FORGE PA 19482-0840

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Denkewicz, Jr Raymond P La Grange, KY 33 570
von, Rehren Borgstedt Eric Jeffersonville, PA 2 5

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