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:
Aug. 19, 1997
Filed:
Sep. 01, 1995
Nippon Shokubai Co., Ltd., Osaka, JP;
Abstract
There is provided a denitration catalyst excellent in denitration activity and durability in a high temperature region, for catalytically reducing NOx in an exhaust gas using a reducing agent such as ammonia. This denitration catalyst is (1) one containing a titanium-tungsten oxide obtained by coprecipitating a soluble titanium compound and a soluble tungsten compound from an aqueous medium under the conditions of a temperature of 60.degree. C. or less and a pH of the range of 5 to 8, and drying and calcining to coprecipitate formed; or (2) one comprising said titanium-tungsten oxide (component A), and an oxide of at least one element (component B) selected from the group consisting of cerium (Ce), lanthanum (La), praseodymium (Pr), neodymium (Nd), nickel (Ni) and tin (Sn).