IMPROVED PROCESS FOR CONVERTING ALKANE TO UNSATURATED CARBOXYLIC ACID

PROBLEM TO BE SOLVED: To provide an improved process for converting alkane to an unsaturated carboxylic acid.SOLUTION: A method for preparing an unsaturated carboxylic acid by the selective partial oxidation of an alkane includes the steps of: (i) reacting an alkane with oxygen or an oxygen-containi...

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Hauptverfasser:	LUNDQUIST ERIC GUSTAVE, ZOLOTOROFE DONALD LEE, LEMONDS ANDREW MICHAEL
Format:	Patent
Sprache:	eng
Schlagworte:	ACYCLIC OR CARBOCYCLIC COMPOUNDS APPARATUS THEREFOR CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY GENERAL METHODS OF ORGANIC CHEMISTRY METALLURGY ORGANIC CHEMISTRY PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL THEIR RELEVANT APPARATUS TRANSPORTING
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide an improved process for converting alkane to an unsaturated carboxylic acid.SOLUTION: A method for preparing an unsaturated carboxylic acid by the selective partial oxidation of an alkane includes the steps of: (i) reacting an alkane with oxygen or an oxygen-containing gas such as air in the presence of a catalyst to prepare the product containing at least one unsaturated carboxylic acid and a certain concentration of a saturated carboxylic acid; and (ii) reducing the concentration of the impurities of a saturated carboxylic acid by reducing the selectivity of partial oxidation to a saturated carboxylic acid and breaking, converting or separating at least some of a saturated carboxylic acid.