公开(公告)号：EP1575905A1

公开(公告)日：2005-09-21

申请号：EP03789263.5

申请日：2003-12-13

Applicant: BASF Aktiengesellschaft

Inventor： SOHN, Martin ,  STROEFER, Eckhard ,  NEVEJANS, Filip ,  PENZEL, Ulrich ,  PALLASCH, Hans-Jürgen ,  SANDER, Michael ,  SCHWARZ, Hans, Volkmar ,  MACKENROTH, Wolfgang

IPC: C07C263/10 ,  C07C263/20 ,  C07C265/14

CPC classification number: C07C263/20 ,  C07C263/10 ,  C07C265/14

Abstract: The invention relates to a method for producing isocyanates by reacting amines with phosgene inside a reactor followed by separating the isocyanate out from the reaction mixture exiting the reactor and purifying this isocyanate. The invention is characterized in that the isocyanate is separated out and purified in a column with a top pressure of 1 to 950 mbar, preferably 5 to 50 mbar, particularly preferred 10 to 20 mbar, with a bottom temperature of 90 to 250 °C, preferably 120 to 170 °C, particularly preferred 130 to 150 °C, and that the pure isocyanate flow is withdrawn in liquid or gaseous form, preferably in a side-stream of the column.

公开(公告)号：EP1187808B1

公开(公告)日：2003-08-20

申请号：EP00943828.4

申请日：2000-06-16

Applicant: BASF AKTIENGESELLSCHAFT

Inventor： REIF, Martin ,  VAN DEN ABEEL, Peter ,  NEVEJANS, Filip ,  SCHWARZ, Hans, Volkmar ,  PENZEL, Ulrich ,  SCHARR, Volker

IPC: C07C263/10

CPC classification number: C07C263/10 ,  C08G18/7664 ,  C07C265/14

Abstract: The invention relates to light isocyanates, to a method for producing light isocyanates and to their use in urethane compounds, especially in polyurethane, for example polyurethane foams.

公开(公告)号：EP1073628A1

公开(公告)日：2001-02-07

申请号：EP99920644.4

申请日：1999-04-12

Applicant: BASF AKTIENGESELLSCHAFT

Inventor： PENZEL, Ulrich ,  SCHARR, Volker ,  STAROSTA, Dieter ,  BOESEL, Hilmar ,  STRÖFER, Eckhard ,  PFEFFINGER, Joachim ,  POPLOW, Frank ,  DOSCH, Jürgen ,  SCHWARZ, Hans, Volkmar ,  NÄUMANN, Fritz ,  VAN DEN ABEEL, Peter ,  JACOBS, Jan ,  NEVEJANS, Filip ,  VAN PEE, Willy

IPC: C07C263/10 ,  C07C263/20 ,  C07C265/14

CPC classification number: C07C263/10 ,  C07C263/20 ,  C07C265/14

Abstract: The invention relates to a method for producing mixtures consisting of diphenylmethane diisocyanates and polyphenylene-polymethylene-polyisocyanates containing a reduced amount of chlorinated secondary products and with a reduced iodine colour index. According to said method, a two-stage reaction of the corresponding mixtures of diphenylmethane-diamines and polyphenylene-polymethylene polyamines with phosgene is carried out in the presence of at least one inert organic solvent at a high temperature. When the phosgenation is complete, the excess phosgene and solvent are separated off and the product of the reaction is treated with heat. The method is characterised in that the mass ratios of phosgene to hydrogen chloride in the detention apparatus in the second stage of phosgenation are simultaneously 10-30:1 in the liquid phase and 1-10:1 in the gas phase.

公开(公告)号：EP1485195B1

公开(公告)日：2005-11-16

申请号：EP03706482.1

申请日：2003-02-12

Applicant: BASF Aktiengesellschaft

Inventor： OLBERT, Gerhard ,  MATTKE, Torsten ,  VANDERWAEREN, Luc ,  NEVEJANS, Filip ,  HAMMENECKER, Jan

IPC: B01J8/00 ,  B01J8/06 ,  B01J19/00 ,  B01J12/00 ,  C01B31/28

CPC classification number: B01J31/28 ,  B01J8/001 ,  B01J8/008 ,  B01J8/0085 ,  B01J8/06 ,  B01J8/067 ,  B01J12/007 ,  B01J19/002 ,  B01J19/0053 ,  B01J19/006 ,  B01J2208/00061 ,  B01J2208/00212 ,  B01J2208/00221 ,  B01J2208/00513 ,  B01J2208/0061 ,  B01J2219/0002 ,  B01J2219/0004 ,  B01J2219/00777 ,  C01B32/80 ,  Y10S585/922 ,  Y10S585/924

Abstract: The invention relates to a reactor (1) for producing phosgene involving the gas-phase reaction of carbon monoxide and chlorine in the presence of a fixed-bed catalyst. The inventive reactor comprises a bundle of parallel contact tubes (2), which extend in the longitudinal direction of the reactor and whose ends are fixed in tube bases (3), and the reactor (1) has a cap (4) at both ends thereof. The reactor also comprises baffle plates (6), which are placed in the space between the contact tubes (2) while extending perpendicular to the longitudinal direction of the reactor and which do not obstruct passage openings (7) on the reactor inner wall, said passage openings being located opposite one another in an alternating manner. The contact tubes (2) are filled with the fixed-bed catalyst, the gaseous reaction mixture is guided from one reactor end while passing through a cap (4) and the contact tubes (2), and is withdrawn from the opposite reactor end while passing through the second cap (4). A liquid heat exchange medium is guided through the space (5) between the contact tubes (2), and the reactor (1) is free from tubes in the area of the passage openings (7).

公开(公告)号：EP1187808A1

公开(公告)日：2002-03-20

申请号：EP00943828.4

申请日：2000-06-16

Applicant: BASF AKTIENGESELLSCHAFT

Inventor： REIF, Martin ,  VAN DEN ABEEL, Peter ,  NEVEJANS, Filip ,  SCHWARZ, Hans, Volkmar ,  PENZEL, Ulrich ,  SCHARR, Volker

IPC: C07C263/10

CPC classification number: C07C263/10 ,  C08G18/7664 ,  C07C265/14

Abstract: The invention relates to light isocyanates, to a method for producing light isocyanates and to their use in urethane compounds, especially in polyurethane, for example polyurethane foams.

公开(公告)号：EP1575908A1

公开(公告)日：2005-09-21

申请号：EP03785813.1

申请日：2003-12-13

Applicant: BASF Aktiengesellschaft

Inventor： SOHN, Martin ,  STROEFER, Eckhard ,  NEVEJANS, Filip ,  PENZEL, Ulrich ,  PALLASCH, Hans-Jürgen ,  VAN DEN ABEEL, Peter ,  DEBERDT, Filip ,  JACOBS, Jan D. ,  MACKENROTH, Wolfgang

IPC: C07C263/20

CPC classification number: C07C263/10 ,  C07C263/20 ,  Y10S203/08 ,  C07C265/14

Abstract: The invention relates to a method for producing isocyanates by reacting amines with phosgene in the presence of inert organic solvents inside a reactor and by subsequently processing the reaction mixture exiting the reactor. The invention is characterized in that the separating out of the solvent ensues in a two-step or multi-step, preferably two-step distillation process, and the solvent is separated out in a first apparatus under a pressure of 0.1 to 15 bar and in a second or other apparatuses under a pressure of 1 to 900 mbar. The condensation heat of the solvent vapor from the first apparatus is used for partially or completely vaporizing solvent in the second apparatus.

公开(公告)号：EP1575906A1

公开(公告)日：2005-09-21

申请号：EP03789264.3

申请日：2003-12-13

Applicant: BASF Aktiengesellschaft

Inventor： SOHN, Martin ,  STROEFER, Eckhard ,  NEVEJANS, Filip ,  PENZEL, Ulrich ,  PALLASCH, Hans-Jürgen ,  VAN DEN ABEEL, Peter ,  DEBERDT, Filip ,  JACOBS, Jan D. ,  MACKENROTH, Wolfgang

IPC: C07C263/10 ,  B01D53/70 ,  C01B7/07

CPC classification number: C01B7/0731 ,  B01D53/002 ,  B01D2257/2045 ,  B01D2257/2064 ,  C01B7/0712 ,  C01B32/80 ,  C07C263/10 ,  Y02P20/154 ,  C07C265/14 ,  C07C265/12 ,  C07C265/10

Abstract: The invention relates to a method for partially or completely separating a substance mixture consisting of hydrogen chloride and phosgene, optionally of solvents and optionally of low-boiling fractions and inert substances such as those that normally arise during the production of isocyanates by reacting amines with phosgene. The inventive method is characterized in that a partial or complete condensation of phosgene is firstly carried out followed by a distillation or stripping inside a column for removing the hydrogen chloride from the bottom product phosgene and lastly, a washing of the top product hydrogen chloride with the process solvent for absorbing the phosgene in the process solvent is carried out. A subsequent purification by means of adsorption on activated carbon or other appropriate methods can be used for removing solvent remnants.

公开(公告)号：EP1575904A1

公开(公告)日：2005-09-21

申请号：EP03789262.7

申请日：2003-12-13

Applicant: BASF Aktiengesellschaft

Inventor： SOHN, Martin ,  STROEFER, Eckhard ,  NEVEJANS, Filip ,  PENZEL, Ulrich ,  PALLASCH, Hans-Jürgen ,  LEUTHOLD, Rene ,  BRODHAGEN, Andreas ,  WÖLFERT, Andreas ,  MACKENROTH, Wolfgang ,  MAURER, Markus

IPC: C07C263/10 ,  C07C265/14

CPC classification number: C07C263/10 ,  C07C265/14

Abstract: The invention relates to a method for the continuous production of polyisocyanates by reaction of organic amines with phosgene, characterised in that the reaction occurs in at least three stages, whereby the first stage is in a mixing unit, the second stage in at least one residence time unit and the third stage in at least one material separating apparatus and the pressure in each subsequent stage is lower than in the previous stage.

公开(公告)号：EP1485195A1

公开(公告)日：2004-12-15

申请号：EP03706482.1

申请日：2003-02-12

Applicant: BASF AKTIENGESELLSCHAFT

Inventor： OLBERT, Gerhard ,  MATTKE, Torsten ,  VANDERWAEREN, Luc ,  NEVEJANS, Filip ,  HAMMENECKER, Jan

IPC: B01J8/00 ,  B01J8/06 ,  B01J19/00 ,  B01J12/00 ,  C01B31/28

CPC classification number: B01J31/28 ,  B01J8/001 ,  B01J8/008 ,  B01J8/0085 ,  B01J8/06 ,  B01J8/067 ,  B01J12/007 ,  B01J19/002 ,  B01J19/0053 ,  B01J19/006 ,  B01J2208/00061 ,  B01J2208/00212 ,  B01J2208/00221 ,  B01J2208/00513 ,  B01J2208/0061 ,  B01J2219/0002 ,  B01J2219/0004 ,  B01J2219/00777 ,  C01B32/80 ,  Y10S585/922 ,  Y10S585/924

Abstract: The invention relates to a reactor (1) for producing phosgene involving the gas-phase reaction of carbon monoxide and chlorine in the presence of a fixed-bed catalyst. The inventive reactor comprises a bundle of parallel contact tubes (2), which extend in the longitudinal direction of the reactor and whose ends are fixed in tube bases (3), and the reactor (1) has a cap (4) at both ends thereof. The reactor also comprises baffle plates (6), which are placed in the space between the contact tubes (2) while extending perpendicular to the longitudinal direction of the reactor and which do not obstruct passage openings (7) on the reactor inner wall, said passage openings being located opposite one another in an alternating manner. The contact tubes (2) are filled with the fixed-bed catalyst, the gaseous reaction mixture is guided from one reactor end while passing through a cap (4) and the contact tubes (2), and is withdrawn from the opposite reactor end while passing through the second cap (4). A liquid heat exchange medium is guided through the space (5) between the contact tubes (2), and the reactor (1) is free from tubes in the area of the passage openings (7).

公开(公告)号：EP1575908B1

公开(公告)日：2006-08-09

申请号：EP03785813.1

申请日：2003-12-13

Applicant: BASF Aktiengesellschaft

Inventor： SOHN, Martin ,  STROEFER, Eckhard ,  NEVEJANS, Filip ,  PENZEL, Ulrich ,  PALLASCH, Hans-Jürgen ,  VAN DEN ABEEL, Peter ,  DEBERDT, Filip ,  JACOBS, Jan D. ,  MACKENROTH, Wolfgang

IPC: C07C263/20

CPC classification number: C07C263/10 ,  C07C263/20 ,  Y10S203/08 ,  C07C265/14

Abstract: The invention relates to a method for producing isocyanates by reacting amines with phosgene in the presence of inert organic solvents inside a reactor and by subsequently processing the reaction mixture exiting the reactor. The invention is characterized in that the separating out of the solvent ensues in a two-step or multi-step, preferably two-step distillation process, and the solvent is separated out in a first apparatus under a pressure of 0.1 to 15 bar and in a second or other apparatuses under a pressure of 1 to 900 mbar. The condensation heat of the solvent vapor from the first apparatus is used for partially or completely vaporizing solvent in the second apparatus.