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:
Jan. 02, 1990
Filed:
Jul. 24, 1987
Makoto Imanari, Ami, JP;
Takeo Koshikawa, Ami, JP;
Akihiro Yamauchi, Koganei, JP;
Masayuki Hanada, Kitakyushu, JP;
Morio Fukuda, Kitakyushu, JP;
Kiyoshi Nagano, Kitakyushu, JP;
Mitsubishi Petrochemical Co., Ltd., Tokyo, JP;
Mitsubishi Jukogyo Kabushiki Kaisha, Tokyo, JP;
Sakai Chemical Industry Co., Ltd., Osaka, JP;
Catalysts & Chemicals Industries, Co., Ltd., Tokyo, JP;
Mitsubishi Petrochemical Engineering Co., Ltd., Tokyo, JP;
Abstract
A catalyst for removing nitrogen oxides in an exhaust gas, said catalyst containing a first group of many pores having a diameter of 1.times.10.sup.2 .ANG. to less than 1.times.10.sup.3 .ANG. and a second group of many pores having a diameter of 1.times.10.sup.3 .ANG. to 1.2.times.10.sup.5 .ANG., the pore volume of the first group being at least 10% based on the total pore volume of the first group and the second group, and said catalyst comprising titanium and at least one metal selected from molybdenum, tungsten and vanadium as metal elements of catalytically active ingredients.