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.
提供的是一种制备二芳基醚化合物的方法,通过在卤化稀土元素氧化物催化剂的存在下脱
水芳香醇化合物,其中使用的脱
水催化剂可以通过卤化步骤再生。稀土元素氧化物是轻稀土元素的氧化物、中稀土元素的氧化物、重稀土元素的氧化物、
钇的氧化物或两种或更多的混合物。