公开(公告)号：EP3256252A1

公开(公告)日：2017-12-20

申请号：EP16704206.8

申请日：2016-02-12

Applicant: BASF SE ,  Dow Global Technologies LLC

Inventor： RIEDEL, Dominic ,  TELES, Joaquim Henrique ,  URBANCZYK, Daniel ,  WEGERLE, Ulrike ,  SPISKE, Luise ,  PARVULESCU, Andrei-Nicolae ,  SCHROEDER, Alexander ,  MUELLER, Ulrich ,  WEIDENBACH, Meinolf ,  WITZL, Werner

IPC: B01J38/12 ,  B01J38/48 ,  B01J29/89 ,  B01J29/90 ,  C07D301/12 ,  B01J35/02 ,  B01J35/10 ,  C01B39/08

CPC classification number: B01J29/89 ,  B01J29/90 ,  B01J35/023 ,  B01J35/1061 ,  B01J38/12 ,  B01J38/48 ,  B01J2229/183 ,  B01J2229/186 ,  C01B39/085 ,  C07D301/12 ,  Y02P20/52 ,  Y02P20/584

Abstract: The invention relates to process for the regeneration of a catalyst comprising a titanium containing zeolite as catalytically active material comprising a stage comprising introducing a feed stream comprising propene, hydrogen peroxide or a hydrogen peroxide source, and an organic solvent into a reactor containing a catalyst comprising the titanium containing zeolite, subjecting the feed stream in the reactor to epoxidation conditions in the presence of the catalyst, removing a product steam comprising propylene oxide and the organic solvent from the reactor, stopping introducing the feed stream, washing the catalyst with a liquid aqueous system and calcining the washed catalyst.