Process for preparing modified V—Ti—P catalysts for synthesis of 2,3-unsaturated carboxylic acids
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United States of America Patent
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Jan 9, 2018
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Oct 8, 2014
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Sep 16, 2011
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Abstract
The invention relates to a catalyst composition comprising a mixed oxide of vanadium, titanium, and phosphorus modified with alkali metal. The titanium component is derived from a water-soluble, redox-active organo-titanium compound. The catalyst composition is highly effective at facilitating the vapor-phase condensation of formaldehyde with acetic acid to generate acrylic acid, particularly using an industrially relevant aqueous liquid feed.
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