公开(公告)号：EP2323973A1

公开(公告)日：2011-05-25

申请号：EP09781542.7

申请日：2009-08-06

申请人： BASF SE

发明人： PENZEL, Ulrich ,  MATTKE, Torsten ,  WÖLFERT, Andreas ,  JACOBS, Johannes ,  CHENG, Tsung-Chieh ,  HEINEN, Kerstin ,  STROEFER, Eckhard ,  MAIXNER, Stefan ,  MACKENROTH, Wolfgang ,  TRAGUT, Christian ,  THIELE, Kai ,  WON, Myung Un

IPC分类号： C07C263/10

CPC分类号： C07C263/10 ,  C07C265/14

摘要： The invention relates to a method for producing isocyanates through reaction of the corresponding amines with phosgene in the liquid phase, optionally in the presence of at least one inert medium, in which first the amine and the phosgene are mixed in a mixing chamber (1) to form a reaction mixture and the reaction mixture is fed to a reactor, wherein the amine is added through an opening (3) that is disposed coaxially to the mixing chamber (1) and wherein the phosgene is added through feed openings (5) in at least two planes (7, 9) disposed perpendicular to the axis (11) of the mixing chamber (1), or the phosgene is added through the opening (3) that is coaxial to the mixing chamber and the amine is added through the feed openings (5) in at least two planes (7, 9) disposed perpendicular to the axis (11) of the mixing chamber (1). At least one plane (9) is disposed upstream in the main flow direction of the reaction mixture and at least one plane (7) is disposed downstream relative to the opening (3) disposed coaxially to the mixing chamber (1). The average residence time of the reaction mixture in the mixing chamber (1) is no more than 20 ms.

公开(公告)号：EP4378576A1

公开(公告)日：2024-06-05

申请号：EP22210271.7

申请日：2022-11-29

申请人： BASF SE

发明人： MAIXNER, Stefan ,  KUD, Alexander ,  LIPP, Stefan ,  REINDEL, Klaus ,  WON, Myung Un ,  PARK, Man Gyun ,  PARAKADAVIL, Shah

IPC分类号： B01J19/26 ,  B01J4/00 ,  C07C263/10 ,  C07C265/14

CPC分类号： B01J19/26 ,  B01J2219/0024520130101 ,  B01J2219/003620130101 ,  B01J4/002 ,  C07C263/10

摘要： The invention relates to an apparatus and a process for preparing isocyanates by reacting the corresponding amines with phosgene in the liquid phase, wherein either the amine as a first reactant and the phosgene as a second reactant or the phosgene as a first reactant and the amine as a second reactant are mixed in a mixing chamber (1) to form a reaction mixture and the reaction mixture is fed to a reactor, the first reactant being added through a coaxial inlet (3) penetrating a back plane (2) of the mixing chamber (1) and extending coaxially into the mixing chamber (1) with an orifice (4) opening out into the mixing chamber (1) at a distance L1 to the back plane (2), and the second reactant being added through radial orifices (5) opening out into the mixing chamber (1) in at least a first plane (6) arranged perpendicular to the axis (8) of the mixing chamber (1), wherein all radial orifices (5) are arranged upstream of the orifice (4) of the coaxial inlet (3) in the main flow direction of the reaction mixture.

公开(公告)号：EP2323973B1

公开(公告)日：2012-03-21

申请号：EP09781542.7

申请日：2009-08-06

申请人： BASF SE

发明人： PENZEL, Ulrich ,  MATTKE, Torsten ,  WÖLFERT, Andreas ,  JACOBS, Johannes ,  CHENG, Tsung-Chieh ,  HEINEN, Kerstin ,  STROEFER, Eckhard ,  MAIXNER, Stefan ,  MACKENROTH, Wolfgang ,  TRAGUT, Christian ,  THIELE, Kai ,  WON, Myung Un

IPC分类号： C07C263/10

CPC分类号： C07C263/10 ,  C07C265/14

摘要： The invention relates to a method for producing isocyanates through reaction of the corresponding amines with phosgene in the liquid phase, optionally in the presence of at least one inert medium, in which first the amine and the phosgene are mixed in a mixing chamber (1) to form a reaction mixture and the reaction mixture is fed to a reactor, wherein the amine is added through an opening (3) that is disposed coaxially to the mixing chamber (1) and wherein the phosgene is added through feed openings (5) in at least two planes (7, 9) disposed perpendicular to the axis (11) of the mixing chamber (1), or the phosgene is added through the opening (3) that is coaxial to the mixing chamber and the amine is added through the feed openings (5) in at least two planes (7, 9) disposed perpendicular to the axis (11) of the mixing chamber (1). At least one plane (9) is disposed upstream in the main flow direction of the reaction mixture and at least one plane (7) is disposed downstream relative to the opening (3) disposed coaxially to the mixing chamber (1). The average residence time of the reaction mixture in the mixing chamber (1) is no more than 20 ms.