公开(公告)号：AT335721T

公开(公告)日：2006-09-15

申请号：AT03785813

申请日：2003-12-13

Applicant: BASF AG

Inventor： SOHN MARTIN ,  STROEFER ECKHARD ,  NEVEJANS FILIP ,  PENZEL ULRICH ,  PALLASCH HANS-JUERGEN ,  VAN DEN ABEEL PETER ,  DEBERDT FILIP ,  JACOBS JAN D ,  MACKENROTH WOLFGANG

IPC: C07C263/20

Abstract: The invention relates to a process for preparing isocyanates by reaction of amines with phosgene in the presence of inert organic solvents in a reactor and subsequent work-up of the reaction mixture leaving the reactor, wherein the solvent is separated off in a two-stage or multistage, preferably two-stage, distillation process in which the solvent is separated off at a pressure of 0.1-15 bar in a first apparatus and at 1-900 mbar in a second apparatus or further apparatuses, with the heat of condensation of the solvent vapor from the first apparatus being used for partial or complete vaporization of solvent in the second apparatus.

公开(公告)号：DE102004014677A1

公开(公告)日：2005-10-13

申请号：DE102004014677

申请日：2004-03-25

Applicant: BASF AG

Inventor： WALSDORFF CHRISTIAN ,  SEIDEMANN LOTHAR ,  SESING MARTIN ,  FIENE MARTIN ,  GRASLER THOMAS ,  METELKINA OLGA ,  STROEFER ECKHARD ,  SOHN MARTIN

IPC: B01J8/18 ,  B01J8/24 ,  C01B7/04 ,  B01J23/46

Abstract: The invention relates to a process for carrying out exothermic chemical equilibrium reactions in a fluidized-bed reactor, wherein there is a temperature distribution in the fluidized bed of the fluidized-bed reactor and the temperature difference between the lowest temperature and the highest temperature is at least 10 K. The invention further relates to a fluidized-bed reactor for carrying out chemical reactions in a fluidized bed ( 5 ), wherein at least one heat exchanger ( 12, 28 ) is located in the fluidized bed ( 5 ) to control the temperature distribution.

公开(公告)号：AU2003294849A1

公开(公告)日：2004-07-14

申请号：AU2003294849

申请日：2003-12-13

Applicant: BASF AG

Inventor： SOHN MARTIN ,  STROEFER ECKHARD ,  NEVEJANS FILIP ,  PENZEL ULRICH ,  PALLASCH HANS-JURGEN ,  ABEEL PETER VAN DEN ,  DEBERDT FILIP ,  JACOBS JAN D ,  MACKENROTH WOLFGANG

IPC: C07C263/20

Abstract: The invention relates to a process for preparing isocyanates by reaction of amines with phosgene in the presence of inert organic solvents in a reactor and subsequent work-up of the reaction mixture leaving the reactor, wherein the solvent is separated off in a two-stage or multistage, preferably two-stage, distillation process in which the solvent is separated off at a pressure of 0.1-15 bar in a first apparatus and at 1-900 mbar in a second apparatus or further apparatuses, with the heat of condensation of the solvent vapor from the first apparatus being used for partial or complete vaporization of solvent in the second apparatus.

公开(公告)号：AU2003293871A1

公开(公告)日：2004-07-14

申请号：AU2003293871

申请日：2003-12-13

Applicant: BASF AG

Inventor： SOHN MARTIN ,  STROEFER ECKHARD ,  NEVEJANS FILIP ,  PENZEL ULRICH ,  PALLASCH HANS-JURGEN ,  LEUTHOLD RENE ,  BRODHAGEN ANDREAS ,  WOLFERT ANDREAS ,  MACKENROTH WOLFGANG ,  MAURER MARKUS

IPC: C07C263/10 ,  C07C265/14

Abstract: The invention relates to a process for preparing polyisocyanates by reacting organic amines with phosgene, wherein the reaction is carried out in at least three stages, with the first stage being carried out in a mixing apparatus, the second stage in at least one residence apparatus and the third stage in at least one separation apparatus and the pressure in each successive stage being lower than that in the previous stage.

公开(公告)号：PT1646604E

公开(公告)日：2008-02-11

申请号：PT04740321

申请日：2004-06-25

Applicant: BASF AG

Inventor： PINKOS ROLF ,  STROEFER ECKHARD ,  DEBERDT FILIP ,  STEINBRENNER ULRICH ,  SOHN MARTIN ,  QUASCHNING VERONIKA ,  MOEHWALD HELMUT ,  THIELE KAI ,  JACOBS JAN D

IPC: C07C209/78 ,  C07C209/86 ,  C07C211/50

公开(公告)号：AT372317T

公开(公告)日：2007-09-15

申请号：AT05700737

申请日：2005-01-07

Applicant: BASF AG

Inventor： KNOESCHE CARSTEN ,  SOHN MARTIN ,  PENZEL ULRICH ,  PALLASCH HANS-JUERGEN ,  GEORGI GUNTER ,  MACKENROTH WOLFGANG ,  SCHWARZ HANS VOLKMAR ,  MAIXNER STEFAN ,  MOLZ GERALD ,  STROEFER ECKHARD

IPC: C07C209/84 ,  C07C211/50

Abstract: The invention relates to a process for distillatively preparing TDA from a reactant stream comprising TDA, high boilers and low boilers in a dividing wall column in which a dividing wall is disposed in the longitudinal direction of the column to form an upper combined column region ( 2 ), a lower combined column region ( 3 ), a feed section ( 4 ) having a rectifying section ( 5 ) and stripping section ( 6 ), and also a withdrawal section ( 7 ) having a rectifying section ( 9 ) and stripping section ( 8 ), which comprises the following steps: a. feeding the reactant stream ( 13 ) into the feed section ( 4 ) of the dividing wall column ( 1 ); b. drawing off a low boiler fraction via the top of the column ( 11 ); c. drawing off TDA via a side draw ( 14 ) in the withdrawal section ( 7 ) of the dividing wall column ( 1 ); d. drawing off a low boiler fraction via the bottom of the column ( 12 ).

公开(公告)号：DE102004001456A1

公开(公告)日：2005-08-11

申请号：DE102004001456

申请日：2004-01-08

Applicant: BASF AG

Inventor： KNOESCHE CARSTEN ,  SOHN MARTIN ,  PENZEL ULRICH ,  PALLASCH HANS-JUERGEN ,  GEORGI GUNTER ,  MACKENROTH WOLFGANG ,  SCHWARZ HANS VOLKMAR ,  MAIXNER STEFAN ,  MOLZ GERALD ,  STROEFER ECKHARD

IPC: C07C209/84 ,  C07C211/50

Abstract: The invention relates to a process for distillatively preparing TDA from a reactant stream comprising TDA, high boilers and low boilers in a dividing wall column in which a dividing wall is disposed in the longitudinal direction of the column to form an upper combined column region ( 2 ), a lower combined column region ( 3 ), a feed section ( 4 ) having a rectifying section ( 5 ) and stripping section ( 6 ), and also a withdrawal section ( 7 ) having a rectifying section ( 9 ) and stripping section ( 8 ), which comprises the following steps: a. feeding the reactant stream ( 13 ) into the feed section ( 4 ) of the dividing wall column ( 1 ); b. drawing off a low boiler fraction via the top of the column ( 11 ); c. drawing off TDA via a side draw ( 14 ) in the withdrawal section ( 7 ) of the dividing wall column ( 1 ); d. drawing off a low boiler fraction via the bottom of the column ( 12 ).

公开(公告)号：DE10311865A1

公开(公告)日：2004-09-30

申请号：DE10311865

申请日：2003-03-17

Applicant: BASF AG

Inventor： STROEFER ECKHARD ,  WEBER MARKUS ,  WOELFERT ANDREAS ,  MUELLER CHRISTIAN ,  SOHN MARTIN ,  LANG NEVEN ,  KNOESCHE CARSTEN ,  KLOETZER MATTHIAS ,  HENDREICH REGINA ,  MORGENSCHWEIS KONRAD ,  FIENE MARTIN ,  THIELE KAI ,  MURRAR IMBRIDT

IPC: C01B7/04 ,  C07C263/10 ,  C07C265/14

Abstract: A method for the production of polyurethane components, especially isocyanates, involves using a system made up of components used in micro-technology.

公开(公告)号：DE10310888A1

公开(公告)日：2004-09-23

申请号：DE10310888

申请日：2003-03-11

Applicant: BASF AG

Inventor： BRODHAGEN ANDREAS ,  SOHN MARTIN ,  NEVEJANS FILIP ,  STROEFER ECKHARD ,  WOELFERT ANDREAS ,  OEHLENSCHLAEGER STEFFEN

IPC: B01J19/24 ,  C07C263/10 ,  C07C265/14

Abstract: Production of polyisocyanates comprises mixing an amine with phosgene, reacting the amine with the phosgene in a tubular reactor, and passing the reactor effluent to a distillation column. Independent claims are also included for: (1) tubular reactor consisting of one or more horizontal and/or vertical segments connected together by sections whose diameter is smaller than that of the narrowest horizontal or vertical segment; (2) use of the above reactor for carrying out gas-liquid reactions; and (3) use of the above reactor for producing isocyanates by reacting primary amines with phosgene.

公开(公告)号：AU2003293872A1

公开(公告)日：2004-07-14

申请号：AU2003293872

申请日：2003-12-13

Applicant: BASF AG

Inventor： SOHN MARTIN ,  STROEFER ECKHARD ,  NEVEJANS FILIP ,  PENZEL ULRICH ,  PALLASCH HANS-JURGEN ,  SANDER MICHAEL ,  SCHWARZ HANS VOLKMAR ,  MACKENROTH WOLFGANG

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

Abstract: The present invention relates to a process for preparing isocyanates by reaction of amines with phosgene in a reactor and subsequent separation of the isocyanate from the reaction mixture leaving the reactor and purification of the isocyanate, wherein the separation and purification of the isocyanate is carried out in a column having a pressure at the top of 1-950 mbar, preferably 5-50 mbar, particularly preferably 10-20 mbar, and a temperature at the bottom of 90-250° C., preferably 120-170° C., particularly preferably 130-150° C., and the pure isocyanate stream is preferably taken off in liquid or gaseous form at a side offtake of the column.