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. 27, 1999
Filed:
May. 09, 1997
Koichi Wada, Kanagawa-ken, JP;
Akira Iwamoto, Yamaguchi-ken, JP;
Yoshimasa Seo, Yamaguchi-ken, JP;
Atsusi Sudo, Gunma-ken, JP;
Fumio Sakai, Gunma-ken, JP;
Kazuo Shiraishi, Gunma-ken, JP;
Hideaki Miki, Yamaguchi-ken, JP;
Nippon Kayaku Co., Ltd., Tokyo, JP;
Abstract
A catalyst for the production of unsaturated aldehyde and unsaturated acid, obtained by loading a catalytically active component on a carrier and calcining the loaded catalyst, characterized by an average particle diameter of the catalyst of 4 to 16 mm, an average particle diameter of the carrier of 3 to 12 mm, a calcining temperature of 520 to 600.degree. C. and an amount of the catalytically active component loaded on the carrier of 5 to 80% by weight �weight of the catalytically active component)/(weight of the catalytically active component+weight of the carrier+weight of a strength improver)!, and a process for producing unsaturated aldehyde and unsaturated acid with the catalyst.