公开(公告)号：US11623868B2

公开(公告)日：2023-04-11

申请号：US17250534

申请日：2019-08-02

Applicant: BASF SE

Inventor： Hannah Schreyer ,  Andrei-Nicolae Parvulescu ,  Ulrich Mueller ,  Christian Riemann ,  Ralf Boehling ,  Christoph Schappert ,  Bernd Hinrichsen ,  Stefan Dumser ,  Stefanie Clade

IPC: B01J29/76 ,  C01B39/48 ,  B01D53/86 ,  B01D53/94 ,  B01J37/00 ,  B01J37/04 ,  B01J37/06 ,  B01J37/10 ,  B01J37/30 ,  B01J39/02 ,  B01J39/14

Abstract: Disclosed herein is a continuous process for preparing zeolitic material with a CHA-type framework structure comprising SiO2 and X2O3 and the zeolitic material so-obtained. The processes comprises (i) preparing a mixture comprising one or more sources of SiO2, one or more sources of X2O3, seed crystals, one or more tetraalkylammonium cation R5R6R7R8N+-containing compounds as structure directing agent, and a liquid solvent system; (ii) continuously feeding the mixture prepared in (i) into a continuous flow reactor at a liquid hourly space velocity; and (iii) crystallizing the zeolitic material with a CHA-type framework structure from the mixture in the continuous flow reactor.