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:
Jun. 26, 2018
Filed:
Oct. 08, 2015
Applicant:
Chemtreat, Inc., Glen Allen, VA (US);
Inventors:
John Richardson, Hanover, VA (US);
Kevin White, Richmond, VA (US);
Benjamin Niemaseck, Chesterfield, VA (US);
Douglas McIlwaine, Ashland, VA (US);
James Wilkins, Midlothian, VA (US);
Assignee:
CHEMTREAT, INC., Glen Allen, VA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C01B 11/02 (2006.01);
U.S. Cl.
CPC ...
C01B 11/024 (2013.01);
Abstract
Methods and systems for producing high purity gaseous chlorine dioxide are provided. A solid chlorite reactant is contacted with an ozone-containing reactant gas, or a gas containing both ozone and a component that reacts with any hydroxide byproduct (such as carbon dioxide), to produce chlorine dioxide. The reaction can be monitored and controlled to ensure that excess chlorite reactant is provided and to prevent ozone from passing into the product gas.