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:
Feb. 04, 2003
Filed:
Nov. 03, 2000
Tomoya Inoue, Kurashiki, JP;
Hiroshi Ishida, Kurashiki, JP;
Asahi Kasei Kogyo Kabushiki Kaisha, Osaka, JP;
Abstract
Disclosed is a process for producing an oxide catalyst for use in producing (meth)acrylonitrile from propane or isobutane by ammoxidation in the gaseous phase, the oxide catalyst comprising a compound oxide containing Mo, V and Sb as essential component elements, which process comprises subjecting a solution or slurry, in water and/or an alcohol, of a raw-material mixture comprising a Mo compound, a V compound and an Sb compound as essential raw materials to a specific oxidation treatment using an oxidizing gas and/or an oxidizing liquid before subjecting the solution or slurry to drying and subsequent calcination. Further, also disclosed is a process for producing a base-treated oxide catalyst by treating the above-mentioned oxide catalyst with an aqueous basic solution.