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:
Jul. 19, 1977
Filed:
Aug. 03, 1976
Applicant:
Inventors:
Masumi Saito, Kobe, JA;
Sumio Tani, Neyagawa, JA;
Shigeaki Matsui, Higashiosaka, JA;
Shigeaki Kasaoka, Okayama, JA;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01J / ; B01J / ;
U.S. Cl.
CPC ...
252472 ; 252461 ; 423 82 ; 423 83 ;
Abstract
A catalyst for reduction of nitrogen oxides in the presence of ammonia, which can be advantageously prepared by treating titanium slag with sulfuric acid at an elevated temperature, optionally followed by treatment with an alkali, and decomposing the resulting product while heating at a temperature of about 400.degree. to 700.degree. C and has a high catalytic activity with a long catalytic life and a high resistance to acid substances.