Catalysts and methods for alcohol dehydration
OwnerPaul R. Elowe, David G. Barton +5inventors
InventorsPaul R. Elowe, David G. Barton, Adam Chojecki, Beata A. Kilos, Dennis W. Jewell, Adam S. Cieszlak, Bruce D. Hook
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Abstract
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.
Claims15
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.
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Dependencies are inferred from the claim text.