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公开(公告)号：EP3523272B1
公开(公告)日：2020-09-23
申请号：EP17780119.8
申请日：2017-10-09
申请人： BASF SE
IPC分类号： C07C209/72 , C07C209/84 , C07C209/86
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公开(公告)号：EP3523272A1
公开(公告)日：2019-08-14
申请号：EP17780119.8
申请日：2017-10-09
申请人： BASF SE
IPC分类号： C07C209/72 , C07C209/84 , C07C209/86
摘要： Process for hydrogenating toluenediamine (TDA) tar containing TDA and high boilers relative to TDA, including the step of contacting the toluenediamine tar with a heterogeneous hydrogenation catalyst comprising at least one metal selected from the group consisting of Ni, Co, Ru, Pd, Pt on at least one catalyst support selected from the group consisting of carbon, TiO2 and ZrO2, and with hydrogen under hydrogenating conditions.
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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
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).
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