Method for the manufacture of crystals of sodium carbonate monoh

Details Method for the manufacture of crystals of sodium carbonate monoh Method for the manufacture of crystals of sodium carbonate monoh

1978-03-24

1981-04-07

Bernstein, Hiram

Chemistry of inorganic compounds

Carbon or compound thereof

Oxygen containing

23301, 23302T, B01D 902

Patent

active

042605946

ABSTRACT:
Method for the manufacture of crystals of sodium carbonate monohydrate, comprises crystallizing sodium carbonate monohydrate from a carbonated aqueous liquor of sodium hydroxide above 35.degree. C. and separating the crystals of sodium carbonate monohydrate and a mother liquor. The sodium carbonate monohydrate is crystallized on crystalline seeds of sodium carbonate monohydrate obtained by evaporation, between 35.degree. and 107.5.degree. C., of a solution of sodium carbonate free from sodium hydroxide.

REFERENCES:
patent: 3628919 (1971-12-01), Beauchamp
patent: 3842157 (1974-10-01), Neumann
patent: 3843768 (1974-10-01), Neumann
patent: 3975503 (1976-08-01), Hauschild et al.
Condensed Chemical Dictionary-Hawley, 8th Ed., Van Nostrand Reinhold 10, N.Y. 1971.

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