MIXED METAL OXIDE CATALYST FOR PRODUCING UNSATURATED ALDEHYDE FROM OLEFIN

PROBLEM TO BE SOLVED: To provide a catalyst for producing an unsaturated aldehyde such as methacrolein by gas phase catalytic oxidation of an olefin such as isobutylene. SOLUTION: This catalyst contains molybdenum, bismuth, iron, and cesium and, depending on conditions, other metals such as oxides o...

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Bibliographic Details
Main Authors LIANG WUGENG, KAUFFMAN JAMES W, LINZER JOSEPH R, STEVENSON SCOTT A, LEDFORD JOHN S
Format Patent
LanguageEnglish
Published 28.10.2004
Edition7
Subjects
ACYCLIC OR CARBOCYCLIC COMPOUNDS
CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY
CHEMISTRY
METALLURGY
ORGANIC CHEMISTRY
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
THEIR RELEVANT APPARATUS
TRANSPORTING
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Summary:PROBLEM TO BE SOLVED: To provide a catalyst for producing an unsaturated aldehyde such as methacrolein by gas phase catalytic oxidation of an olefin such as isobutylene. SOLUTION: This catalyst contains molybdenum, bismuth, iron, and cesium and, depending on conditions, other metals such as oxides of tungsten, cobalt, nickel, antimony, magnesium, zinc, and phosphorus. This catalyst also has a specific relative amount ratio of cesium to bismuth, that of iron to bismuth, that of bismuth to molybdenum, and that of bismuth, iron, and cesium to molybdenum is represented by the following general formula. However, the general formula of the above is MozBiaFecCsgOx, wherein "a" is in the range from 0.1 to 1.5, "c" is in the range from 0.2 to 5.0, "g" is in the range from 0.1 to 1.5, and "x" is determined according to the valence of the component. COPYRIGHT: (C)2005,JPO&NCIPI
Bibliography:Application Number: JP20040104282