Crystallization of sodium carbonate decahydrate from liquors...

Details Crystallization of sodium carbonate decahydrate from liquors... Crystallization of sodium carbonate decahydrate from liquors...

2006-03-28

2006-03-28

Silverman, Stanley S. (Department: 1754)

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Alkali metal

C023S30200R

Reexamination Certificate

active

07018594

ABSTRACT:
A process for recovering sodium carbonate decahydrate crystals from solutions and mother liquors supersaturated in sodium bicarbonate concentration. Feed liquors containing higher levels of sodium bicarbonate than traditionally fed to a sodium carbonate decahydrate crystallizer are used to create a mother liquor within a sodium carbonate decahydrate crystallizer that is supersaturated with respect to sodium bicarbonate. Substantially pure sodium carbonate decahydrate crystals may be precipitated from the supersaturated mother liquor without substantially precipitation of sodium bicarbonate containing crystals.

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