Abstract: An improved method of purifying sodium carbonate from a natural source whereby a dissolved sodium carbonate product is treated with a cationic compound, such as a quaternary amine, to react with carbon-containing contaminants and filtering the product. The filtered modified sodium carbonate solution is then crystallized and dried. The modified sodium carbonate has a greater reactivity or uptake of carbon dioxide for the manufacture of sodium bicarbonate than conventional sodium carbonates.
Type:
Application
Filed:
September 9, 1999
Publication date:
May 31, 2001
Applicant:
James Milo Shepard
Inventors:
JAMES MILO SHEPARD, VICTOR EUGENE BRAMAN, KENNETH DOUGLAS BOYLE, CARTER JAY MOORE