Jan Jacobs

Author:

Jan Jacobs

ISBN #:

0792382544

Author:

Jan Jacobs

ISBN #:

9020424122

Author:

Jan Jacobs

ISBN #:

9066330058

US Patent:

6916953, Jul 12, 2005

Filed:

Aug 27, 2002

Appl. No.:

10/227865

Inventors:

Christian Walsdorff - Ludwigshafen, DE
Martin Fiene - Niederkirchen, DE
Eckhard Ströfer - Mannheim, DE
Klaus Harth - Altleiningen, DE
Jan D. Jacobs - Baton Rouge LA, US
Filip Deberdt - Muinzen, BE

Assignee:

BASF Aktiengesellschaft - Ludwigshafen

International Classification:

C07C263/10
C07C263/00
C07C263/18
C07C263/20

US Classification:

560341, 560330, 560336, 560338, 205436, 205438, 205455, 205456, 205551

Abstract:

Process for preparing organic isocyanates, which comprises the steps.

US Patent:

7408083, Aug 5, 2008

Filed:

Jun 25, 2004

Appl. No.:

10/564059

Inventors:

Ulrich Steinbrenner - Neustadt, DE
Eckhard Stroefer - Mannheim, DE
Martin Sohn - Lohra, DE
Veronika Quaschning - Mannheim, DE
Helmut Moehwald - Annweiler, DE
Kai Thiele - Schwarzheide, DE
Filip Deberdt - Muizen, BE
Jan D. Jacobs - Baton Rouge LA, US
Rolf Pinkos - Bad Durkheim, DE

Assignee:

BASF Aktiengesellschaft - Ludwigshafen

International Classification:

C07C 209/78

US Classification:

564331, 564332, 564333

Abstract:

A process is described for preparing diaminodiarylmethanes comprising the steps.

US Patent:

7524405, Apr 28, 2009

Filed:

Dec 13, 2003

Appl. No.:

10/539610

Inventors:

Martin Sohn - Mannheim, DE
Eckhard Stroefer - Mannheim, DE
Filip Nevejans - St.Gillis-Waas, BE
Ulrich Penzel - Tettau, DE
Hans-Juergen Pallasch - Kallstadt, DE
Peter Van Den Abeel - Brasschaat, BE
Filip Deberdt - Muizen, BE
Jan D. Jacobs - Baton Rouge LA, US
Wolfgang Mackenroth - Bad Duerkheim, DE

Assignee:

BASF Aktiengesellschaft - Ludwigshafen

International Classification:

B01D 3/00
C07C 263/20

US Classification:

203 80, 203 27, 203DIG 8, 560347, 560352

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.

US Patent:

7584629, Sep 8, 2009

Filed:

Dec 13, 2003

Appl. No.:

10/538759

Inventors:

Martin Sohn - Mannheim, DE
Eckhard Stroefer - Mannheim, DE
Filip Nevejans - St. Gillis-Waas, BE
Ulrich Penzel - Tettau, DE
Hans-Juergen Pallasch - Kallstadt, DE
Peter Van Den Abeel - Brasschaat, BE
Filip Deberdt - Muizen, BE
Jan D. Jacobs - Baton Rouge LA, US
Wolfgang Mackenroth - Bad Duerkheim, DE

Assignee:

BASF Aktiengesellschaft - Ludwigshafen

International Classification:

F25J 3/00
C07C 69/96

US Classification:

62617, 560347, 558270, 558274

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.