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:
Mar. 21, 1978
Filed:
May. 26, 1976
Applicant:
Inventors:
Tetsuo Tanaka, Kurashiki, JA;
Tadatsugu Yamamoto, Kurashiki, JA;
Yasuo Takahashi, Kurashiki, JA;
Hideaki Obana, Kurashiki, JA;
Kunio Watanabe, Kurashiki, JA;
Kunihiko Wada, Kurashiki, JA;
Kunihiko Yamashita, Kurashiki, JA;
Kusuo Ohki, Kurashiki, JA;
Assignee:
Asahi Kasei Kogyo Kabushiki Kaisha, Osaka, JA;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C01B / ;
U.S. Cl.
CPC ...
423235 ; 423236 ; 423245 ; 423351 ;
Abstract
An exhaust gas containing nitrogen oxides is efficiently purified without the necessary use of catalysts by contacting the exhaust gas with a nitrile compound at high temperature in the presence of oxygen, whereby the nitrogen oxides and the nitrile compound are selectively decomposed into harmless materials.