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.

Date of Patent:
Dec. 01, 2015

Filed:

Dec. 01, 2011
Applicants:

Anthony Matthew Johnston, Double Bay, AU;

Brian Scott Haynes, Frenchs Forest, AU;

Inventors:

Anthony Matthew Johnston, Double Bay, AU;

Brian Scott Haynes, Frenchs Forest, AU;

Assignees:

ORICA INTERNATIONAL PTE LTD, Singapore, SG;

THE UNIVERSITY OF SYDNEY, Sydney, New South Wales, AU;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C01B 21/26 (2006.01); C01B 21/38 (2006.01); C01B 21/40 (2006.01);
U.S. Cl.
CPC ...
C01B 21/38 (2013.01); C01B 21/26 (2013.01); C01B 21/40 (2013.01);
Abstract

A process for producing nitric acid is disclosed in which a gaseous oxidizer feed composed at least substantially of ammonia, steam and an oxidizing gas is exposed to conditions whereby the ammonia is oxidized to produce a reaction mixture including nitrogen monoxide and water vapor. The reaction mixture is then cooled in a heat exchanger whereby: a) the nitrogen monoxide is oxidized and the water vapor is caused to condense, b) the products of the nitrogen monoxide oxidation react with and are absorbed by the condensed water, and c) substantially all of the nitrogen monoxide in the reaction mixture is converted to nitric acid. Also disclosed is a nitric acid solution when produced by the disclosed process.


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