Process for producing acrylic acid
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United States of America Patent
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Mar 26, 2013
Grant Date -
Oct 20, 2011
app pub date -
Dec 24, 2009
filing date -
Dec 26, 2008
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Abstract
A process for producing acrylic acid of the present invention comprises the step of conducting gas-phase oxidative dehydrogenation of a composition containing propionaldehyde using a solid catalyst containing molybdenum and vanadium as essential components, thereby obtaining acrylic acid. The obtained acrylic acid is preferably purified by crystallization, and a monomeric component containing the purified acrylic acid is polymerized to thereby give a hydrophilic resin such as an absorbent resin and a water-soluble resin.
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