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:
May. 23, 2017
Filed:
May. 08, 2014
Nippon Kayaku Kabushiki Kaisha, Tokyo, JP;
Yuuta Nakazawa, Yamaguchi, JP;
Yoshiko Shoya, Yamaguchi, JP;
Masaki Nakahara, Yamaguchi, JP;
Eiji Nishimura, Yamaguchi, JP;
Kazuo Shiraishi, Gunma, JP;
Tatsuhiko Kurakami, Yamaguchi, JP;
Ryota Hiraoka, Yamaguchi, JP;
Nippon Kayaku Kabushiki Kaisha, Tokyo, JP;
Abstract
Provided is a catalyst having high activity and yield of a target product for producing an unsaturated aldehyde and/or an unsaturated carboxylic acid and further having high mechanical strength. The catalyst is a catalyst prepared by a method in which a catalyst formulation satisfies specified atomic ratios; and in the preparation thereof, a molybdenum component raw material is an ammonium molybdate, a solvent for dissolving the ammonium molybdate is water, a bismuth component raw material is bismuth nitrate, and a solvent for dissolving bismuth nitrate is a nitric acid aqueous solution, and the weight of water for dissolving the ammonium molybdate, the weight of the nitric acid aqueous solution for dissolving the bismuth nitrate, and the acid concentration of the nitric acid aqueous solution are satisfied with specified ranges, respectively.