Method for producing methacrylic acid from isobutane
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United States of America Patent
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Aug 23, 2005
Grant Date -
Dec 2, 2004
app pub date -
Jun 28, 2002
filing date -
Jun 29, 2001
priority date (Note) -
Expired
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Abstract
A process prepares methacrylic acid from isobutane by subjecting isobutane to a partial catalytic dehydrogenation in the gas phase and charging an oxidation zone with the isobutenic product gas mixture after the components other than isobutane and isobutene have been substantially removed from the product gas mixture. The oxygen required to charge the oxidation zone is introduced accompanied by nitrogen.
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