公开(公告)号：JPH1095763A

公开(公告)日：1998-04-14

申请号：JP17038197

申请日：1997-06-26

Applicant: BASF AG

Inventor： KRAUS RUPERT DR ,  TESCH HELMUT DR ,  BRUCHMANN BERND DR ,  SEYFERT WILFRIED DR ,  NEVEJANS FILIP ,  VAN DEN ABEEL PETER

IPC: C07C263/10 ,  C07C263/18 ,  C07C263/20 ,  C07C265/00 ,  C08G18/70 ,  C08G101/00

Abstract: PROBLEM TO BE SOLVED: To obtain the subject solution which does not contain a noticable amount of coloration components at all and contain a relatively low amount of hydrolyzable chlorine by directly treating them with hydrogen at a relatively low temperature and pressure without additive temperature treatment and stress. SOLUTION: A solution containing at least one kind of isocyanate is phosgenated then treated with hydrogen before the perfect removal of the solvent. The treatment with hydrogen is carried out under the pressure of 0.5×10 -2.8×10 Pa at 70-150 deg.C in the phosgenation reagent. In a preferred embodiment, at least one of the isocyanate is an isocyanate in the group of diphenylmethane diisocyanates.

公开(公告)号：WO2004080587A8

公开(公告)日：2004-11-11

申请号：PCT/EP2004001673

申请日：2004-02-20

Applicant: BASF AG ,  BRODHAGEN ANDREAS ,  SOHN MARTIN ,  NEVEJANS FILIP ,  STROEFER ECKHARD ,  WOELFERT ANDREAS ,  OEHLENSCHLAEGER STEFFEN

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

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

CPC classification number: B01J19/242 ,  B01J19/243 ,  B01J2219/00166 ,  B01J2219/182 ,  B01J2219/185 ,  B01J2219/187 ,  C07C263/10 ,  C07C265/14

Abstract: The invention relates to a method for producing polyisocyanates by reacting primary amines with phosgene, comprising the following steps: a) mixing the amine with the phosgene; b) reacting the amine with the phosgene in a reactor, inside of which the mixture stays for a period of time and, optionally; c) transferring the discharge from the reactor from step b) into a distillation column. The invention is characterized in that the reactor cited in step b) is provided in the form of a tubular reactor.

Abstract translation: 本发明涉及一种通过伯胺与光气，其包括以下步骤：a反应来制备多异氰酸酯）混合在住宅中反应器中的光气的胺的胺我光气b）中反应，如果在反应器的流出物的适当的，c）中的转换 步骤b）在蒸馏塔中，其特征在于，步骤b）中的停留时间反应器设计为管式反应器。

公开(公告)号：IN237581B

公开(公告)日：2010-01-01

申请号：IN1858CH2004

申请日：2004-08-20

Applicant: BASF AG

Inventor： OLBERT GERHARD ,  MATTKE TORSTEN ,  VANDERWAEREN LUC ,  NEVEJANS FILIP ,  HAMMENECKER JAN

IPC: B01J8/00 ,  B01J8/06 ,  B01J12/00 ,  B01J19/00 ,  C01B32/80

Abstract: A reactor (1) for preparing phosgene by gas-phase reaction of carbon monoxide and chlorine in the presence of a solid catalyst, which reactor has a bundle of parallel catalyst tubes (2) aligned in the longitudinal direction of the reactor whose ends are fixed in tube plates (3) and have a cap (4) at each end of the reactor (1), and has deflection plates (6) which are aligned perpendicular to the longitudinal direction of the reactor in the intermediate space (5) between the catalyst tubes (2) and leave free passages (7) located alternately opposite one another on the interior wall of the reactor, and in which the catalyst tubes (2) are charged with the solid catalyst, the gaseous reaction mixture is passed from one end of the reactor via one cap (4) through the catalyst tubes (2) and is taken off from the opposite end of the reactor (1) via the second cap (4) and a liquid heat transfer medium is passed through the intermediate space (5) around the catalyst tubes (2), where the reactor (1) has no tubes in the region of the passages (7), is proposed.

公开(公告)号：ES2270145T3

公开(公告)日：2007-04-01

申请号：ES03785813

申请日：2003-12-13

Applicant: BASF AG

Inventor： SOHN MARTIN ,  STROEFER ECKHARD ,  NEVEJANS FILIP ,  PENZEL ULRICH ,  PALLASCH HANS-JURGEN ,  VAN DEN ABEEL PETER

IPC: C07C263/20

Abstract: Procedimiento para la obtención de isocianatos mediante reacción de aminas con fosgeno en presencia de disolventes orgánicos inertes en un reactor, y subsiguiente elaboración de la mezcla de reacción que abandona el reactor, caracterizado porque la separación de disolventes se efectúa en un procedimiento de destilación de dos o más etapas, y separándose el disolvente en una primera instalación a una presión de 0, 1 a 15 bar, y en una segunda instalación, o instalación adicional, a 1 hasta 900 mbar, siendo el nivel de presión en la segunda instalación más reducido que en la primera instalación; situándose la temperatura de cola de la primera columna, según presión, entre 60ºC a 0, 1 bar y 270ºC a 15 bar, y la de la segunda columna, según presión, entre 75ºC a 1 mbar y 250ºC a 900 mbar, y empleándose el calor de condensación del vapor de disolvente de la primera instalación para la evaporación parcial o completa de disolvente en la segunda instalación.

公开(公告)号：BR0307973A

公开(公告)日：2004-12-21

申请号：BR0307973

申请日：2003-02-12

Applicant: BASF AG

Inventor： OLBERT GERHARD ,  MATTKE TORSTEN ,  VANDERWAEREN LUC ,  NEVEJANS FILIP ,  HAMMENECKER JAN

IPC: B01J8/00 ,  B01J8/06 ,  B01J12/00 ,  B01J19/00 ,  C01B32/80 ,  C01B31/28

Abstract: A reactor (1) for preparing phosgene by gas-phase reaction of carbon monoxide and chlorine in the presence of a solid catalyst, which reactor has a bundle of parallel catalyst tubes (2) aligned in the longitudinal direction of the reactor whose ends are fixed in tube plates (3) and have a cap (4) at each end of the reactor (1), and has deflection plates (6) which are aligned perpendicular to the longitudinal direction of the reactor in the intermediate space (5) between the catalyst tubes (2) and leave free passages (7) located alternately opposite one another on the interior wall of the reactor, and in which the catalyst tubes (2) are charged with the solid catalyst, the gaseous reaction mixture is passed from one end of the reactor via one cap (4) through the catalyst tubes (2) and is taken off from the opposite end of the reactor (1) via the second cap (4) and a liquid heat transfer medium is passed through the intermediate space (5) around the catalyst tubes (2), where the reactor (1) has no tubes in the region of the passages (7), is proposed.

公开(公告)号：AU2003293873A1

公开(公告)日：2004-07-14

申请号：AU2003293873

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: C01B7/07 ,  C01B32/80 ,  C07C263/10 ,  B01D53/70

Abstract: The invention relates to a process for the partial or complete separation of a mixture comprising hydrogen chloride and phosgene, possibly solvents and possibly low boilers and inerts as are typically obtained in the preparation of isocyanates by reaction of amines with phosgene, which comprises firstly carrying out a partial or complete condensation of phosgene, then a distillation or stripping step in a column to remove the hydrogen chloride from the bottom product phosgene and subsequently a scrub of the top product hydrogen chloride by means of the process solvent to absorb the phosgene in the process solvent. An after-purification by means of adsorption on activated carbon or by another suitable method can subsequently be carried out to remove solvent residues.

公开(公告)号：DE10260027A1

公开(公告)日：2004-07-08

申请号：DE10260027

申请日：2002-12-19

Applicant: BASF AG

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

IPC: C07C263/20 ,  C07C263/18 ,  C07C263/10 ,  B01D1/00 ,  B01D5/00

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：ES2253661T3

公开(公告)日：2006-06-01

申请号：ES03706482

申请日：2003-02-12

Applicant: BASF AG

Inventor： OLBERT GERHARD ,  MATTKE TORSTEN ,  VANDERWAEREN LUC ,  NEVEJANS FILIP ,  HAMMENECKER JAN

IPC: B01J8/00 ,  B01J8/06 ,  B01J12/00 ,  B01J19/00 ,  C01B32/80 ,  C01B31/28

Abstract: Procedimiento para la obtención de fosgeno mediante reacción en fase gaseosa de monóxido de carbono y de cloro en presencia de un catalizador en lecho fijo, en uno o varios reactores (1) de forma cilíndrica, con un haz de tubos de contacto (2) dispuestos paralelamente entre sí, ordenados en la dirección longitudinal del reactor, que están fijados en sus extremos en platos de tubos (3), respectivamente con una caperuza (4) en ambos extremos del reactor (1), así como con chapas de desviación (6) dispuestas perpendicularmente con respecto a la dirección longitudinal del reactor, en cavidades intermedias (5) entre los tubos de contacto (2), que dejan libres, sobre la pared interna del reactor, orificios de paso (7) contrapuestos entre sí de manera alternativa, estando cargados los tubos de contacto (2) con el catalizador en lecho fijo, conduciéndose la mezcla de la reacción en estado gaseoso desde un extremo del reactor por una caperuza (4) a través de los tubos de contacto (2) y descargándosepor el extremo opuesto del reactor a través de una segunda caperuza (4) y conduciéndose a través de la cavidad intermedia (5) alrededor de los tubos de contacto (2) un agente intercambiador de calor líquido, caracterizado porque se dejan libres de tubos el o los reactores (1) en la zona de los orificios de paso (7) para la realización del procedimiento.

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.