Carbonation process for the manufacture of sodium bicarbonate

Details Carbonation process for the manufacture of sodium bicarbonate Carbonation process for the manufacture of sodium bicarbonate

C - Chemistry, Metallurgy

01

D

23/15

C01D 7/10 (2006.01) C01B 31/24 (2006.01) C01D 7/00 (2006.01)

Patent

CA 1125473

-24- PR-5078/5207/5208 CARBONATION PROCESS FOR THE MANUFACTURE OF SODIUM BICARBONATE Abstract of the Disclosure Sodium bicarbonate of controlled crystal size, habit and bulk density is produced by dispersing carbon dioxide into a saturated solution of sodium carbonate and sodium bicarbonate or a slurry of sodium bicarbonate in a saturated solution of sodium carbonate and sodium bicarbonate for reaction therewith. The reaction is carried out generally at a temperature of about 50° to about 120°C in the presence of sufficient Ca++ ion so that a specified amount of Ca++ ion is found in the crystallized sodium bicarbonate.

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