CATALYSTS AND METHODS FOR ALCOHOL DEHYDRATION

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Provided is a process for preparing a diaryl ether compound through the dehydration of an aromatic alcohol compound in the presence of a dehydration catalyst. The dehydration catalyst comprises a mixture of two or more of (a) an oxide of a light rare earth element, (b) an oxide of a medium rare earth element, (c) an oxide of a heavy rare earth element, or (d) an oxide of yttrium.