Method for the preparation of water glass solutions

C - Chemistry – Metallurgy – 01 – B

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C01B 33/32 (2006.01)

Patent

CA 1145918

ABSTRACT OF THE DISCLOSURE This invention is directed to a novel method for the production of water glass solutions whereby flue dust is reacted with from about 6 to 15% by weight aqueous alkali metal hydroxide solution at elevated temperatures and the reaction product is then filtered. Preferably, the reaction takes place at a temperature of from about 120 to 190°C and at a pressure of from 2.9 to 18.6 bars.

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