Title:
METHOD OF SYNTHESIZING MALEIC ANHYDRIDE
Document Type and Number:
Japanese Patent JPS53124217
Kind Code:
A
Abstract:
Maleic anhydride is produced by the oxidation of 1,3-butadiene, n-butylenes, crotonaldehyde and furan with molecular oxygen in the vapor phase in the presence of catalytic oxides of antimony, molybdenum, at least one element selected from the group consisting of niobium, zirconium, titanium and tantalum and optionally a reducing agent capable of reducing at least part of the molybdenum in the catalyst to a valence state below +6 selected from the group consisting of hydrazine hydrate, molybdenum, tungsten, magnesium, aluminum, and nickel. This catalyst may optionally contain one or more elements selected from the group consisting of Li, Ag, Ce, Cd, Co, As, Si, Zn, Ge, Bi, Ru, Pt, U, Al and Ni. Especially desirable yields of maleic anhydride are obtained from 1,3-butadiene in the presence of a catalyst wherein molybdenum metal is used as a reducing agent.
Inventors:
AANESUTO SHII MIRUBAAGAA
YUUNISU KEI TEI UON
YUUNISU KEI TEI UON
Application Number:
JP3803578A
Publication Date:
October 30, 1978
Filing Date:
March 30, 1978
Export Citation:
Assignee:
STANDARD OIL CO
International Classes:
B01J23/00; B01J23/28; B01J23/30; B01J23/88; B01J31/00; C07B61/00; C07D307/60; C07C51/25; C07C51/31; (IPC1-7): B01J23/16; B01J23/28; B01J23/30; B01J23/88; B01J31/02; C07D307/60
Domestic Patent References:
| JPS4839429A | 1973-06-09 |
Foreign References:
| DE1099111B | 1961-02-09 |