公开(公告)号：AU2003282140A1

公开(公告)日：2004-02-25

申请号：AU2003282140

申请日：2003-07-30

Applicant: BASF AG

Inventor： STROEFER ECKHARD ,  HARTH KLAUS ,  JACOBS JAN D ,  DEBERDT FILIP ,  WALSDORFF CHRISTIAN ,  FIENE MARTIN

IPC: B01J23/46 ,  C01B7/04 ,  C07C263/10 ,  C07C263/20 ,  C25B1/26

Abstract: Process for preparing organic isocyanates, which comprises the steps (a) making available a first partial amount of chlorine, with the chlorine of this first partial amount having a content of free and bound bromine and iodine of

公开(公告)号：DE10235476A1

公开(公告)日：2004-02-12

申请号：DE10235476

申请日：2002-08-02

Applicant: BASF AG

Inventor： WALSDORFF CHRISTIAN ,  FIENE MARTIN ,  STROEFER ECKHARD ,  HARTH KLAUS ,  JACOBS JAN D ,  DEBERDT FILIP

IPC: B01J23/46 ,  C01B7/04 ,  C07C263/10 ,  C01B7/03 ,  C01B31/28 ,  C25B1/26 ,  C07B43/10

Abstract: Process for preparing organic isocyanates, which comprises the steps (a) making available a first partial amount of chlorine, with the chlorine of this first partial amount having a content of free and bound bromine and iodine of

公开(公告)号：ES2234969T3

公开(公告)日：2005-07-01

申请号：ES02022029

申请日：1999-01-26

Applicant: BASF AG

Inventor： STROFER ECKHARD DR ,  JACOBS JAN D ,  SEYFERT WILFRIED DR ,  SCHWARZ HANS VOLKMAR DR ,  SCHWEERS OLAF DR ,  SCHARR VOLKER

IPC: C07B61/00 ,  C07C209/78 ,  C07C211/45 ,  C07C211/50 ,  C07C263/10 ,  C07C265/14

Abstract: Procedimiento para la obtención de metilendi(fenilisocianato) mediante fosgenizado de metilendi(fenilamina), obtenida mediante reacción de anilina con formaldehído en presencia de catalizadores ácidos, disponiéndose anilina, y en caso dado catalizador ácido, en un procedimiento semicontinuo, alimentándose formaldehído, y en caso dado catalizador ácido, a través de un órgano de mezcla en un circuito, en el que se mueven en circuito anilina, en caso dado catalizador ácido, y en caso dado formaldehído ya añadido, y temperándose la mezcla de reacción a una temperatura mayor que 75ºC tras alimentación de al menos un 50 % de la cantidad de formaldehído a alimentar en total, caracterizado porque el fosgenizado se lleva a cabo a temperaturas de 70ºC a 120ºC, y a una presión de 0, 8 a 5 bar, en una o varias etapas.

公开(公告)号：DE10331772A1

公开(公告)日：2005-02-03

申请号：DE10331772

申请日：2003-07-11

Applicant: BASF AG

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

IPC: C07C209/78 ,  C07C209/86 ,  C07C211/50 ,  C07C209/60

Abstract: A process is described for preparing diaminodiarylmethanes comprising the steps a) reacting an aromatic amine with a methylene-donating agent in the presence of homogeneous acid catalysts, b) removing the homogeneous acid catalyst from the reaction product, c) working up and purifying the reaction product, which comprises removing the homogeneous acid catalyst from the reaction mixture by adsorption to a solid adsorbent.

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：MXPA00007646A

公开(公告)日：2001-04-01

申请号：MXPA00007646

申请日：2000-08-04

Applicant: BASF AG

Inventor： STROFER ECKHARD ,  SCHWARZ HANS VOLKMAR ,  SCHARR VOLKER ,  PENZEL ULRICH ,  JACOBS JAN D ,  SEYFERT WILFRIED DR ,  SCHWEERS OLAF DR

IPC: C07B61/00 ,  C07C209/78 ,  C07C211/45 ,  C07C211/50 ,  C07C263/10 ,  C07C265/14