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:
Aug. 14, 2018
Filed:
Jun. 06, 2011
Applicant:
Felice Dimascio, Rocky Hill, CT (US);
Inventor:
Felice DiMascio, Rocky Hill, CT (US);
Assignee:
Ecolab USA Inc., St. Paul, MN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C02F 1/00 (2006.01); C02F 1/48 (2006.01); C02F 1/72 (2006.01); C02F 1/76 (2006.01); C02F 1/78 (2006.01); C02F 1/469 (2006.01); C02F 1/467 (2006.01); C25B 1/26 (2006.01); C25B 1/34 (2006.01); C25C 1/00 (2006.01);
U.S. Cl.
CPC ...
C02F 1/4695 (2013.01); C02F 1/4678 (2013.01); C25B 1/26 (2013.01); Y02W 10/37 (2015.05);
Abstract
The invention is directed to an apparatus and methods of its use to generate chlorine dioxide. The apparatus comprises three cation exchange resin chambers in fluidic communication to convert chlorite salt into chlorine dioxide. Unlike previous converters, the invention utilizes an novel method of acidifying some of the chlorite to produce a more effective process. The invention can achieve a 100% theoretical yield which is s significant improvement over the 80% theoretical yield in previous attempts using non-acidifying chemistry. The method also avoids the need for expensive catalysts.