Method for preparing bisphenol in the presence of a modified acidic ion-exchange resin
申请人:Mitsui Chemicals, Inc.
公开号:EP1908519A1
公开(公告)日:2008-04-09
The present invention provides the use of an ion-exchange resin catalyst, as a catalyst for preparing bisphenol from phenol compounds and ketone, which has a higher selectivity to bisphenol and a longer life time, as compared to a conventional ion-exchange resin, and a method for preparing the same.
The present invention also provides a method for preparing bisphenol comprising reacting phenol compounds with ketone, wherein the modified acidic ion-exchange resin in which at least one kind of cationic compound selected from the following (b), (c) and (d) ionically binds to an acidic functional group, is used as a catalyst: (b) a quaternary ammonium ion, (c) a bis(phosphoranylidene) ammonium ion, and (d) an N-substituted nitrogen-containing aromatic cation.
本发明提供了一种离子交换树脂催化剂的用途,作为从苯酚化合物和酮制备双酚的催化剂,与传统的离子交换树脂相比,该催化剂对双酚具有更高的选择性和更长的使用寿命,并提供了制备该催化剂的方法。
本发明还提供了一种制备双酚的方法,包括使苯酚化合物与酮反应,其中改性酸性离子交换树脂用作催化剂,该树脂中至少有一种阳离子化合物与酸性官能团离子结合,这些阳离子化合物选自以下(b)、(c)和(d):(b)季铵离子、(c)双(亚磷酰)铵离子和(d)N-取代的含氮芳香阳离子。