The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 02, 2004
Filed:
Mar. 31, 2000
Applicant:
Inventors:
Kurt R. Nielsen, Glenwood Springs, CO (US);
Leo G. Cirotski, Franklin, MA (US);
Allan L. Turner, Lakewood, CO (US);
Assignee:
American Soda, LLP, Parachute, CO (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C01D 7/50 ;
U.S. Cl.
CPC ...
C01D 7/50 ;
Abstract
A method for producing sodium bicarbonate from a nahcolite deposit comprising injecting water or other aqueous solution at a temperature of at least 250° F. into the deposit, dissolving sodium bicarbonate in the hot water to form a production solution and subjecting the production solution to multiple stages of crystallization. The sodium bicarbonate crystals may be dewatered and dried to form a commercial sodium bicarbonate product.