公开(公告)号：US20230278000A1

公开(公告)日：2023-09-07

申请号：US18017679

申请日：2021-07-27

Applicant: BASF SE

Inventor： Jan Pablo JOSCH ,  Stefan ENGELS

IPC: B01J19/24 ,  C01B32/80

CPC classification number: B01J19/24 ,  C01B32/80 ,  B01J2219/00036

Abstract: A unit for producing and/or processing phosgene, preferably for producing and processing phosgene, said unit being configured for at least one production mode and at least one maintenance mode and comprising a structure which defines a confined space in a production mode, wherein (i) the confined space contains at least one apparatus for producing phosgene, or for processing phosgene, or for producing and processing phosgene; (ii) the structure comprises at least one openable and lockable transfer means for temporary removal, in a maintenance mode, of at least part of at least one apparatus according to (i) from the structure through at least one of said transfer means in opened state.

公开(公告)号：US20240317590A1

公开(公告)日：2024-09-26

申请号：US18580641

申请日：2022-07-13

Applicant: BASF SE

Inventor： Jan Pablo JOSCH ,  Stefan ENGELS ,  Gerhard OLBERT ,  Torsten MATTKE

IPC: C01B32/80 ,  B01J21/18 ,  B01J37/08

CPC classification number: C01B32/80 ,  B01J21/18 ,  B01J37/08

Abstract: The invention relates to a process for producing phosgene by conversion of chlorine and CO over an activated carbon catalyst, wherein the activated carbon catalyst is dried by reducing the water content, where the drying comprises the following steps:



a) contacting the catalyst with an inert gas stream
b) determining the residual moisture content of the catalyst by determining the moisture content in the offgas stream
c) ending the drying process after attainment of the desired moisture content in the offgas stream by switching from the inert gas to the reaction gases and optionally
d) heating up the catalyst bed and/or the inert gas during the drying process.

公开(公告)号：US20230277999A1

公开(公告)日：2023-09-07

申请号：US18017678

申请日：2021-07-26

Applicant: BASF SE

Inventor： Gerhard OLBERT ,  Stefan ENGELS ,  Jan Pablo JOSCH

IPC: B01J19/24 ,  C01B32/80

CPC classification number: B01J19/24 ,  C01B32/80 ,  B01J2219/00036

Abstract: A unit for producing and processing phosgene, said unit being configured for at least one maintenance mode and at least one production mode and comprising a structure which defines a confined space in a production mode, said confined space being sub-divided into at least two sub-spaces, wherein (i) at least one sub-space contains at least one apparatus for producing phosgene; (ii) at least one sub-space, other than the at least one sub-space according to (i), contains at least one apparatus for processing phosgene; (iii) the structure comprises at least one openable and lockable access means for temporary access of at least one of the apparatuses according to (i) or (ii) from outside the structure in a maintenance mode.