公开(公告)号：US20220097032A1

公开(公告)日：2022-03-31

申请号：US17426979

申请日：2019-02-02

Applicant: DALIAN INSTITUTE OF CHEMICAL PHYSICS, CHINESE ACADEMY OF SCIENCES

Inventor： Hongchao LIU ,  Shiping LIU ,  Wenliang ZHU ,  Zhongmin LIU ,  Xiangang MA ,  Yong LIU ,  Ziqiao ZHOU ,  Youming NI

IPC: B01J29/18 ,  B01J6/00

Abstract: Provided are a molecular sieve catalyst, a preparation method therefor, an application thereof. The molecular sieve catalyst contains a modified Na-MOR molecular sieve, and the modification comprises: organic ammonium salt exchange, dealumination treatment, and ammonium ion exchange. The catalyst obtained by the method is used in dimethyl ether for one-step production of methyl acetate. The catalyst has high activity and stable performance, and the needs of industrial production can be satisfied.