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:
May. 17, 1977
Filed:
Aug. 14, 1975
Applicant:
Inventors:
Naoyuki Takahashi, Hiroshima, JA;
Nobuaki Murakami, Nagasaki, JA;
Assignee:
Mitsubishi Jukogyo Kabushiki Kaisha, Tokyo, JA;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C01B / ;
U.S. Cl.
CPC ...
423235 ; 423400 ; 423396 ;
Abstract
A process for removing nitrogen oxide contained in a waste gas is disclosed which includes oxidizing the nitrogen oxide to nitrogen dioxide by mixing the gas with nitric acid vapor in the presence of porous adsorbing agent such as silica gel, colloid earth, alumina, molecular sieves or the like and removing the nitrogen dioxide by absorption with an alkali aqueous solution.