公开(公告)号：EP4389278A1

公开(公告)日：2024-06-26

申请号：EP22215534.3

申请日：2022-12-21

申请人： BASF SE

发明人： WLOKA, Veronika ,  HEIDEMANS, Thomas ,  LOTTENBURGER, Ines ,  STOECKLE, Stefan

IPC分类号： B01J23/755 ,  B01J38/12 ,  B01J38/48 ,  C07C2/10

CPC分类号： B01J21/06 ,  B01J21/063 ,  B01J23/755 ,  B01J38/12 ,  B01J38/485 ,  B01J21/04 ,  C07C2/10

摘要： The invention concerns a process for regenerating a used catalyst which has been used for the oligomerization of C3 to C6 olefins, the catalyst in the fresh state having had an active material composition of 10 to 70 % by weight of NiO, 5 to 30 % by weight TiO2 and/or ZrO2, 0 to 20 % by weight Al2O3 and the balance to 100 % by weight SiO2, comprising the steps of a) calcining the used catalyst at a temperature of 300 to 600°C in the presence of an oxygen containing gas, b) applying nickel in an amount corresponding to from 1 to 5 % by weight of the used catalyst mass to the catalyst obtained in step a), and c) drying and calcining the catalyst obtained in step b).