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. 06, 1978
Filed:
Feb. 01, 1977
Applicant:
Inventors:
Yasuo Nishikawa, Okayama, JA;
Akira Watanabe, Okayama, JA;
Tetsuya Sugimoto, Okayama, JA;
Kazuyasu Yabuki, Bizen, JA;
Yoshio Hatayama, Kashihara, JA;
Assignee:
Kyushu Refractories Co., Ltd., Bizen, JA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01J / ; B01J / ;
U.S. Cl.
CPC ...
2524 / ; 4232135 ;
Abstract
Disclosed is a substance which is obtained by calcining an iron hydroxide or a water-containing iron oxide and coating the surface of the resultant calcined product with alumina. This substance is useful as a catalyst in the removal of nitrogen oxides from an exhaust gas containing the nitrogen oxides.