CATALYSTS AND METHODS FOR ALCOHOL DEHYDRATION

摘要

Provided is a method for preparing a diaryl ether compound through the dehydration of an aromatic alcohol compound in the presence of a halogenated rare earth element oxide catalyst, wherein the used dehydration catalyst may be regenerated by a halogenation step. The rare earth element oxide is an oxide of a light rare earth element, an oxide of a medium rare earth element, an oxide of a heavy rare earth element, an oxide of yttrium, or a mixtures of two or more thereof.

主权项

1. A method for preparing a diaryl ether compound, the method comprising:
providing a reaction vessel having loaded therein a dehydration catalyst comprising a halogenated rare earth element oxide; dehydrating an aromatic alcohol compound over the dehydration catalyst to form a diaryl ether compound; and regenerating the dehydration catalyst by halogenating it with a halogen source.