Process for the production of acrylic acid from propane
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United States of America Patent
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Feb 19, 2008
Grant Date -
Aug 17, 2006
app pub date -
Sep 9, 2003
filing date -
Sep 10, 2002
priority date (Note) -
Expired
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Abstract
The invention concerns a method for producing acrylic acid from propane, which consists in passing a gas mixture including propane, water, vapor, and optionally an inert gas and/or molecular oxygen, on a catalyst of formula (I): Mo.sub.1V.sub.aSb.sub.bNb.sub.cSi.sub.dO.sub.x, wherein: a ranges between 0.006 and 1, inclusively; b ranges between 0.006 and 1, inclusively; c ranges between 0.006 and 1, inclusively; d ranges between 0 and 3.5, inclusively; and x is the amount of oxygen bound to the other elements and depends on their state of oxidation, for oxidizing propane into acrylic acid, and which is carried out in the presence of molecular oxygen, the propane/molecular oxygen mol ratio in the initial gas mixture is not less than 0.5.
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