公开(公告)号：DE10260082A1

公开(公告)日：2004-07-01

申请号：DE10260082

申请日：2002-12-19

Applicant: BASF AG

Inventor： SOHN MARTIN ,  STROEFER ECKHARD ,  NEVEJANS FILIP ,  PENZEL ULRICH ,  PALLASCH HANS-JUERGEN ,  LEUTHOLD RENE ,  BRODHAGEN ANDREAS ,  WOELFERT 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：DE59907555D1

公开(公告)日：2003-12-04

申请号：DE59907555

申请日：1999-06-02

Applicant: BASF AG

Inventor： SCHWARZ VOLKMAR ,  MAURER MARKUS ,  SANDER MICHAEL ,  STROEFER ECKHARD ,  LEUTHOLD RENE ,  HANTEL BURGHARD ,  RICHTER SIEGFRIED ,  THERRE JOERG

IPC: C07C263/20 ,  C07C209/62 ,  C07C211/51 ,  C07C263/10 ,  C07C263/18 ,  C07C265/14 ,  C08G18/50 ,  C08G65/26

Abstract: A process for working up distillation residues from the synthesis of tolylene diisocyanate by reaction of the distillation residues with water comprises reacting the TDI distillation residues with water in a continuous or semicontinuous process in a backmixed reactor in the presence of hydrolysate.

公开(公告)号：DE19827086A1

公开(公告)日：1999-12-23

申请号：DE19827086

申请日：1998-06-18

Applicant: BASF AG

Inventor： THERRE JOERG ,  SCHWARZ HANS VOLKMAR ,  MAURER MARKUS ,  SANDER MICHAEL ,  STROEFER ECKHARD ,  LEUTHOLD RENE ,  HANTEL BURGHARD ,  RICHTER SIEGFRIED

IPC: C07C263/20 ,  C07C209/62 ,  C07C211/51 ,  C07C263/10 ,  C07C263/18 ,  C07C265/14 ,  C08G18/50 ,  C08G65/26

Abstract: The invention relates to a method for treating distillation residues from the synthesis of toluene diisocyanate by reacting the distillation residues with water. The invention is characterized in that the TDI distillation residues are reacted with water in a continuos or semi-continuos method in a back-mixed reactor in the presence of hydrolyzates.

公开(公告)号：CA2335068A1

公开(公告)日：1999-12-23

申请号：CA2335068

申请日：1999-06-02

Applicant: BASF AG

Inventor： LEUTHOLD RENE ,  SANDER MICHAEL ,  STROFER ECKHARD ,  SCHWARZ HANS VOLKMAR ,  HANTEL BURGHARD ,  THERRE JORG ,  MAURER MARKUS ,  RICHTER SIEGFRIED

IPC: C07C263/20 ,  C07C209/62 ,  C07C211/51 ,  C07C263/10 ,  C07C263/18 ,  C07C265/14 ,  C08G18/50 ,  C08G65/26

Abstract: The invention relates to a method for treating distillation residues from th e synthesis of toluene diisocyanate by reacting the distillation residues with water. The invention is characterized in that the TDI distillation residues are reacted with water in a continuos or semi-continuos method in a back-mix ed reactor in the presence of hydrolyzates.

公开(公告)号：CA2335068C

公开(公告)日：2005-05-17

申请号：CA2335068

申请日：1999-06-02

Applicant: BASF AG

Inventor： SANDER MICHAEL ,  STROFER ECKHARD ,  THERRE JORG ,  RICHTER SIEGFRIED ,  HANTEL BURGHARD ,  LEUTHOLD RENE ,  SCHWARZ HANS VOLKMAR ,  MAURER MARKUS

IPC: C07C263/20 ,  C07C209/62 ,  C07C211/51 ,  C07C263/10 ,  C07C263/18 ,  C07C265/14 ,  C08G18/50 ,  C08G65/26

Abstract: The invention relates to a method for treating distillation residues from th e synthesis of toluene diisocyanate by reacting the distillation residues with water. The invention is characterized in that the TDI distillation residues are reacted with water in a continuos or semi-continuo s method in a back-mixed reactor in the presence of hydrolyzates.

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.