公开(公告)号：US20160250623A1

公开(公告)日：2016-09-01

申请号：US15028438

申请日：2014-09-12

Applicant: NANJING UNIVERSITY OF TECHNOLOGY

Inventor： Rizhi CHEN ,  Yaohui BAO ,  Hong JIANG ,  Yiqun FAN ,  Weihong XING

IPC: B01J29/03 ,  B01J37/06

CPC classification number: B01J29/0341 ,  B01J29/0316 ,  B01J29/0325 ,  B01J29/0333 ,  B01J37/06 ,  B01J2229/186 ,  B01J2229/32 ,  C07C37/58 ,  Y02P20/52 ,  C07C39/04

Abstract: The invention relates to a catalyst for benzene hydroxylation for preparation of phenol and a preparation method thereof, wherein said catalyst uses a mesoporous material as carrier, and the catalyst is prepared by first modifying the surface of the carrier using aminosilane, then immersing with acetylacetonate salt of metal, and finally washing and drying. Advantage of the invention is that a reactive metal is loaded on the silane-modified mesoporous material to form a homogeneous-heterogeneous composite catalyst, wherein, the reactive metal component is present in a reaction system in a homogeneous form, which ensures high catalytic performance of the catalyst component, and it is loaded on the carrier through bridging action of aminosilane, which improves the acting force between the metal component and the carrier, enhances stability of the catalyst, and facilitates separation of the catalyst from the product. The catalyst has a simple preparation process, has excellent catalytic performance, and can be applied to the reaction system of benzene hydroxylation for preparation of phenol.

Abstract translation: 本发明涉及一种用于制备苯酚的苯羟基化催化剂及其制备方法，其中所述催化剂使用介孔材料作为载体，催化剂通过首先用氨基硅烷改性载体的表面，然后用乙酰丙酮盐 的金属，最后洗涤和干燥。 本发明的优点是将反应性金属负载在硅烷改性介孔材料上以形成均相 - 非均相复合催化剂，其中反应性金属组分以均匀形式存在于反应体系中，这确保了高的催化性能 催化剂组分，并通过氨基硅烷的桥接作用负载在载体上，改善了金属组分与载体之间的作用力，提高了催化剂的稳定性，有利于催化剂与产物的分离。 该催化剂具有简单的制备方法，具有优异的催化性能，可应用于苯羟基化反应体系制备苯酚。