公开(公告)号：US20210261423A1

公开(公告)日：2021-08-26

申请号：US17254050

申请日：2019-06-18

Applicant: BASF SE

Inventor： Andrei-Nicolae PARVULESCU ,  Robert MCGUIRE ,  Ulrich MUELLER ,  Toshiyuki YOKOI ,  Hermann GIES ,  Bernd MARLER ,  Dirk DEVOS ,  Ute KOLB ,  Feng-Shou XIAO ,  Weiping ZHANG ,  Xiangju MENG ,  Yong WANG

IPC: C01B39/48 ,  C01B39/02 ,  B01J29/70 ,  B01J35/00 ,  C07C1/20 ,  B01J6/00 ,  B01J37/30

Abstract: A process for preparing a zeolitic material having an AEI-type framework structure having SiO2 and X2O3 in its framework, X standing for a trivalent element, may involve: (1) preparing a mixture of structure directing agent(s) and a first zeolitic material with SiO2 and X2O3 in its framework, the first zeolitic material having a FER, TON, MTT, FAU, GIS, MOR, BEA, MFI, and LTA framework; (2) heating the mixture to obtain a second zeolitic material having an AEI-type framework with SiO2 and X2O3 in its framework; (3) optionally calcining the second zeolitic material; (4) optionally subjecting the zeolitic material from (2) or (3) to ion-exchange, preferably ion-exchanging ionic extra-framework element(s) in the zeolite framework for H+ and/or NH4+; (5) calcining the zeolitic material from (2), (3), or (4) at greater than 600 to 900° C., the calcining atmosphere containing less than 10 vol.-% of H2O. Such zeolites can convert oxygenates to olefins.