Preparation of sodium silicate solutions

Details Preparation of sodium silicate solutions Preparation of sodium silicate solutions

1983-11-07

1985-09-03

Meros, Edward J.

Chemistry of inorganic compounds

With additive

Additive contains metal, boron, or silicon

423332, 423334, C01B 3328, C01B 3332

Patent

active

045391912

ABSTRACT:
Sodium silicate solutions are prepared by dissolving sand in sodium hydroxide solution at a pressure of at least 100 psig and at a temperature of at least 130.degree. C. to produce a sodium silicate solution having a silica to sodium oxide molar ratio of between 2.4:1 and 2.8:1, and activating said sodium silicate solution by reaction with from about 50 to 200 ppm of alumina.

REFERENCES:
patent: 3956467 (1976-05-01), Bertorelli
patent: 4235856 (1980-11-01), Kostinko
patent: 4264562 (1981-04-01), Kostinko
patent: 4416805 (1983-11-01), Kostinko
patent: 4443422 (1984-04-01), Kostinko

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