公开(公告)号：DE50206003D1

公开(公告)日：2006-05-04

申请号：DE50206003

申请日：2002-10-29

Applicant: BASF AG

Inventor： WOELFERT ANDREAS DR ,  RUETTER HEINZ DR ,  RITTINGER STEFAN DR ,  WEHINGER MARK ,  ALEMANY AURELIE ,  SCHMIDT WILLI

IPC: C07C209/86 ,  C07D295/00 ,  B01D3/00 ,  B01D3/14 ,  B01D3/36 ,  B01D11/04 ,  C07C209/84 ,  C07C211/04 ,  C07C211/08 ,  C07D207/04 ,  C07D211/04 ,  C07D211/12 ,  C07D265/30 ,  C07D295/02 ,  C07D295/03

Abstract: Separation of mixture of amine(s), water, low-boiling fraction and optionally high-boiling fraction includes optional distillative separation of low and high-boiling fractions, extraction of mixture with aqueous sodium hydroxide solution; and distillation of resultant aqueous-organic phase to recover anhydrous amine(s) from sump or side in separation part of column and amine/water azeotrope. Separation of a mixture containing amine(s) (I), water, low-boiling fraction (II) and optionally high-boiling fraction (III) comprises: (i) optional distillative separation of a first low-boiling fraction; (ii) optional distillative separation of a first high-boiling fraction; (iii) extraction of the mixture with aqueous sodium hydroxide (NaOH) solution, giving a first aqueous phase containing NaOH solution and a second aqueous-organic phase (IV) containing amines, other low-boiling fractions and optionally other high-boiling fractions; and (iv) distillation of the aqueous-organic phase to recover anhydrous amines as sump discharge or side discharge in the separation part of the column, an amine/water azeotrope, which is recycled to (iii), as side discharge in the concentration part and further low-boiling fraction as top discharge.

公开(公告)号：AT319676T

公开(公告)日：2006-03-15

申请号：AT02024433

申请日：2002-10-29

Applicant: BASF AG

Inventor： WOELFERT ANDREAS DR ,  RUETTER HEINZ DR ,  RITTINGER STEFAN DR ,  WEHINGER MARK ,  ALEMANY AURELIE ,  SCHMIDT WILLI

IPC: C07D295/00 ,  B01D3/00 ,  B01D3/14 ,  B01D3/36 ,  B01D11/04 ,  C07C209/84 ,  C07C209/86 ,  C07C211/04 ,  C07C211/08 ,  C07D207/04 ,  C07D211/04 ,  C07D295/02 ,  C07D295/03 ,  C07D211/12 ,  C07D265/30

Abstract: Separation of mixture of amine(s), water, low-boiling fraction and optionally high-boiling fraction includes optional distillative separation of low and high-boiling fractions, extraction of mixture with aqueous sodium hydroxide solution; and distillation of resultant aqueous-organic phase to recover anhydrous amine(s) from sump or side in separation part of column and amine/water azeotrope. Separation of a mixture containing amine(s) (I), water, low-boiling fraction (II) and optionally high-boiling fraction (III) comprises: (i) optional distillative separation of a first low-boiling fraction; (ii) optional distillative separation of a first high-boiling fraction; (iii) extraction of the mixture with aqueous sodium hydroxide (NaOH) solution, giving a first aqueous phase containing NaOH solution and a second aqueous-organic phase (IV) containing amines, other low-boiling fractions and optionally other high-boiling fractions; and (iv) distillation of the aqueous-organic phase to recover anhydrous amines as sump discharge or side discharge in the separation part of the column, an amine/water azeotrope, which is recycled to (iii), as side discharge in the concentration part and further low-boiling fraction as top discharge.

公开(公告)号：AT273268T

公开(公告)日：2004-08-15

申请号：AT02024434

申请日：2002-10-29

Applicant: BASF AG

Inventor： WOELFERT ANDREAS DR ,  RUETTER HEINZ DR ,  RITTINGER STEFAN DR ,  WEHINGER MARK ,  ALEMANY AURELIE ,  SCHMIDT WILLI

IPC: C07D211/12 ,  C07C209/16 ,  C07C209/84 ,  C07C209/86 ,  C07C211/08 ,  C07D207/04 ,  C07D207/06 ,  C07D211/04 ,  C07D211/14 ,  C07D265/30 ,  C07D295/02 ,  C07D295/027 ,  C07D295/03