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. 01, 1991
Filed:
Dec. 27, 1988
Applicant:
Inventors:
Yutaka Sasaki, Kanagawa, JP;
Hiroshi Utsumi, Kanagawa, JP;
Masato Otani, Kanagawa, JP;
Kazuo Morishita, Kanagawa, JP;
Assignee:
Nitto Chemical Industry Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01J / ; B01J / ; B01J / ; C01C / ;
U.S. Cl.
CPC ...
502214 ; 423376 ; 502209 ; 502210 ; 502211 ; 502212 ; 502213 ;
Abstract
A process for preparing a metal oxide catalyst for a fluidized bed process, which comprises adjusting the pH of an aqueous slurry containing an iron compound, an antimony compound, a phosphorus compound, and a silica carrier material as essential elements, with the atomic ratio of phosphorus to antimony being at least 0.1:1, to a pH of 3 or less, spray drying the slurry, and calcining the resulting particles; which catalyst exhibits excellent activity and physical properties suitable for use in a fluidized bed process and can be obtained with good reproducibility.