Hydrothermal production of clear sodium silicate solutions

Details Hydrothermal production of clear sodium silicate solutions Hydrothermal production of clear sodium silicate solutions

1985-06-06

1988-09-13

Doll, John

Chemistry of inorganic compounds

Silicon or compound thereof

Oxygen containing

423332, 423333, C01B 3322

Patent

active

047708662

ABSTRACT:
A process for the hydrothermal production of clear sodium silicate solutions by reacting sand and aqueous NaOH solution wherein an excess of 5 to 10% by weight of sand is used and the reaction is conducted in a rotating pressure vessel until 90 to 95% complete, after which it is transferred and completes in a blow-off vessel.

REFERENCES:
patent: Re1297 (1962-04-01), Vanderburgh
patent: Re1674 (1964-05-01), Vanderburgh
patent: Re1675 (1964-05-01), Vanderburgh
patent: Re28540 (1975-09-01), Ball
patent: 4499062 (1985-02-01), Christophliemk et al.
Chemical Engineering 5, 76 (1962).
Robert A. Perry, Chemical Engineers' Handbook, McGraw-Hill Book Company, New York, 1973, pp. 19-63.

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