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.:

US 7045111 B1

PDF
Full Text
Expired
Date of Patent:
May. 16, 2006

Filed:

Aug. 11, 2005
Applicants:

Richard J. Degroot, Southfield, MI (US);

Dov Shellef, Great Neck, NY (US);

Inventors:

Richard J. DeGroot, Southfield, MI (US);

Dov Shellef, Great Neck, NY (US);

Assignee:

Poly Systems USA, Inc., Great Neck, NY (US);

Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C01D 5/02 (2006.01); C01B 7/09 (2006.01);
U.S. Cl.
CPC ...
Abstract

A process for co-producing anhydrous hydrogen bromide and a purified bisulfate salt by (a) reacting a bromide salt with sulfuric acid to produce crude hydrogen bromide and crude bisulfate salt; (b) purifying the crude hydrogen bromide to produce anhydrous hydrogen bromide; and (c) removing bromide from the crude bisulfate salt to form a purified bisulfate salt. There are also provided improvements in the bisulfate purification and bromine removal, whereby bromine is removed from the system by a distillation process and the bromide is removed from the crude bisulfate via a spray drying process.


Find Patent Forward Citations

DeGroot, Richard. (2006). High yield co-production of anhydrous hydrogen bromide and sodium bisulfate (U.S. Patent No. 7045111). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7045111

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