CATALYST FOR DEHYDRATING GLYCERIN AND METHOD FOR PRODUCING ACROLEIN

PROBLEM TO BE SOLVED: To provide a catalyst for dehydrating glycerin, which enables acrolein to be produced while reducing the amount of the propionaldehyde to be produced as a by-product and to provide a method for producing the acrolein by using the catalyst.SOLUTION: The catalyst for dehydrating...

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Bibliographische Detailangaben
Hauptverfasser:	ARITA YOSHIO, OKADA MASAKI
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 a catalyst for dehydrating glycerin, which enables acrolein to be produced while reducing the amount of the propionaldehyde to be produced as a by-product and to provide a method for producing the acrolein by using the catalyst.SOLUTION: The catalyst for dehydrating glycerin contains the metal phosphate including phosphorus and at least one element selected from group 2 elements and has >1 ratio M/P of the molar number M of an alkaline earth metallic element, a metal element of an aluminum group or a rare-earth metal element to the molar number P of the phosphorus and has an apatite crystal at the least. The method for producing the acrolein comprises a step of dehydrating the glycerin in the presence of the catalyst for dehydrating the glycerin.