Catalyst For Methacrylic Acid Production, Process For Producing The Same, And Process For Producing Methacrylic Acid Using The Catalyst
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Apr 16, 2015
app pub date -
May 16, 2013
filing date -
May 18, 2012
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Abstract
An object of the present invention is to provide a process for producing a catalyst for gas-phase contact oxidation of methacrolein, isobutyraldehyde or isobutyric acid to produce methacrylic acid in a high yield and a high selectivity, and a catalyst wherein an alkali metal element, particularly cesium among alkali metal elements, is added by a specific method in a partially neutralized salt of a hetero polyacid which contains Mo, V, P, an alkali metal element and NH4 as essential active ingredients, the catalyst being characterized by having extremely high catalytic performance.
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