公开(公告)号：PT1979306E

公开(公告)日：2013-06-11

申请号：PT07703818

申请日：2007-01-12

Applicant: BASF SE

Inventor： DEBERDT FILIP ,  BOCK MICHAEL ,  PALLASCH HANS-JUERGEN ,  MOORS JOHNNY

IPC: C07C209/78 ,  C07C209/84 ,  C07C211/50 ,  C07C263/10 ,  C07C265/12

公开(公告)号：BRPI0707139A2

公开(公告)日：2011-04-19

申请号：BRPI0707139

申请日：2007-01-12

Applicant: BASF SE

Inventor： BOCK MICHAEL ,  PALLASCH HANS-JUERGEN ,  DEBERDT FILIP ,  MOORS JOHNNY

IPC: C07C209/78 ,  C07C209/84 ,  C07C211/50 ,  C07C263/10 ,  C07C265/12

Abstract: The invention provides a process for the simultaneous preparation of 4,4′-diphenylmethanediamine and also diphenylmethane diisocyanate and polyphenylenepolymethylene polyisocyanates, which comprises the steps a) preparation of a mixture of diphenylmethanediamine and polyphenylenepolymethylenepolyamines by acid condensation of aniline and formaldehyde and subsequent work-up of the mixture, b) splitting-off of part of the mixture prepared in step a), c) distillation of the mixture separated off in step b) in a column, d) recirculation of the bottom product from step c) to the end product from step a) and condensation of the overhead product from step c), e) distillation of the overhead product from step c) in a column, f) recirculation of the overhead product from step e) to the end product from step a), g) isolation of the 4,4′-diphenylmethanediamine obtained as bottom product in step e), h) reaction of the mixture from step a) with phosgene and subsequent work-up of the reaction product.

公开(公告)号：AT483681T

公开(公告)日：2010-10-15

申请号：AT03784115

申请日：2003-07-30

Applicant: BASF SE

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

IPC: C07C263/10 ,  B01J23/46 ,  C01B7/04 ,  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：ES2753382T3

公开(公告)日：2020-04-08

申请号：ES05752554

申请日：2005-05-21

Applicant: BASF SE

Inventor： WÖLFERT ANDREAS ,  PALLASCH HANS-JÜRGEN ,  STROEFER ECKHARD ,  PENZEL ULRICH ,  DEBERDT FILIP

IPC: C07C263/10 ,  C07C265/12 ,  C07C265/14

Abstract: Procedimiento para la preparación de isocianatos mediante reacción de aminas con fosgeno, en el que el flujo de fosgeno, que se alimenta al mezclado de amina y fosgeno, (i) está esencialmente libre de isocianatos y (ii) presenta un contenido en masa de cloruro de hidrógeno inferior al 0,4 % en masa, en el que la cantidad necesaria de HCl en el flujo de producto de partida que contiene fosgeno (11) se facilita mediante adición de HCl en el fosgeno fresco (1) o se ajusta en el flujo de fosgeno reconducido (10) mediante procesamiento en el procesamiento de fosgeno (IX) con consideración de la cantidad alimentada de fosgeno fresco (1).

公开(公告)号：HUE045895T2

公开(公告)日：2020-01-28

申请号：HUE05752554

申请日：2005-05-21

Applicant: BASF SE

Inventor： WOELFERT ANDREAS ,  PALLASCH HANS-JUERGEN ,  STROEFER ECKHARD ,  PENZEL ULRICH ,  DEBERDT FILIP

IPC: C07C263/10 ,  C07C265/12 ,  C07C265/14

公开(公告)号：AT488494T

公开(公告)日：2010-12-15

申请号：AT03789264

申请日：2003-12-13

Applicant: BASF SE

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

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

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.