公开(公告)号：BR9810181A

公开(公告)日：2000-08-08

申请号：BR9810181

申请日：1998-06-18

Applicant: BASF AG

Inventor： WATZENBERGER OTTO ,  PFAB PETER ,  FER ECKHARD STR

IPC: B01D3/00 ,  C01B21/14

Abstract: PCT No. PCT/EP98/03714 Sec. 371 Date Dec. 8, 1999 Sec. 102(e) Date Dec. 8, 1999 PCT Filed Jun. 18, 1998 PCT Pub. No. WO98/57886 PCT Pub. Date Dec. 23, 1998A very pure aqueous solution of free hydroxylamine is prepared by a process in which the dilute, aqueous hydroxylamine solution is concentrated in a column by removing hydroxylamine-containing vapors via a side take-off in the bottom of the column, and very pure hydroxylamine is obtained by condensing the vapors. The novel process can be carried out simply, in a gentle manner and on a large scale and gives electronic grade hydroxylamine.

公开(公告)号：AT368676T

公开(公告)日：2007-08-15

申请号：AT05701205

申请日：2005-01-27

Applicant: BASF AG

Inventor： SCHEIDEL JENS ,  JUNGKAMP TIM ,  BARTSCH MICHAEL ,  HADERLEIN GERD ,  BAUMANN ROBERT ,  LUYKEN HERMANN ,  DECKERT PETRA ,  PFAB PETER ,  SIEGEL WOLFGANG ,  AECHTNER TOBIAS

IPC: C07F9/00 ,  C07C253/34 ,  C07C255/04 ,  C07F9/02

Abstract: A process for extractively removing nickel(0) complexes having phosphorus ligands and/or free phosphorus ligands from a reaction effluent of a hydrocyanation of unsaturated mononitriles to dinitriles by extraction by means of a hydrocarbon, a phase separation of the hydrocarbon and of the reaction effluent into two phases being effected at a temperature T (in ° C.), wherein the content of nickel(0) complexes having phosphorus ligands and/or free phosphorus ligands in the reaction effluent of the hydrocyanation, depending on the temperature T, is at least y % by weight and, irrespective of the temperature T, is a maximum of 60% by weight, where the numerical value of the minimum content y is given by the equation y=0.5.T+20 and T is to be used in the equation as a dimensionless numerical value.

公开(公告)号：AT368644T

公开(公告)日：2007-08-15

申请号：AT03724984

申请日：2003-04-09

Applicant: BASF AG

Inventor： STAROSTA DIETER ,  PFAB PETER ,  KRASE VOLKER ,  SCHMIDT ANDEAS ,  KLOETZER MATTHIAS ,  OTTERBACH ANDREAS

IPC: C07C263/04 ,  B01J6/00 ,  B01J10/00 ,  B01J19/00 ,  C07C265/14 ,  F28D9/00

公开(公告)号：BRPI0507258A

公开(公告)日：2007-06-26

申请号：BRPI0507258

申请日：2005-01-27

Applicant: BASF AG

Inventor： SCHEIDEL JENS ,  JUNGKAMP TIM ,  BARTSCH MICHAEL ,  HADERLEIN GERD ,  BAUMANN ROBERT ,  LUYKEN HERMANN ,  DECKERT PETRA ,  PFAB PETER ,  SIEGEL WOLFGANG ,  AECHTNER TOBIAS

IPC: C07F9/00 ,  C07C253/34 ,  C07C255/04 ,  C07F9/02

Abstract: A process for extractively removing nickel(0) complexes having phosphorus ligands and/or free phosphorus ligands from a reaction effluent of a hydrocyanation of unsaturated mononitriles to dinitriles by extraction by means of a hydrocarbon, a phase separation of the hydrocarbon and of the reaction effluent into two phases being effected at a temperature T (in ° C.), wherein the content of nickel(0) complexes having phosphorus ligands and/or free phosphorus ligands in the reaction effluent of the hydrocyanation, depending on the temperature T, is at least y % by weight and, irrespective of the temperature T, is a maximum of 60% by weight, where the numerical value of the minimum content y is given by the equation y=0.5.T+20 and T is to be used in the equation as a dimensionless numerical value.

公开(公告)号：AU2003227583A1

公开(公告)日：2003-10-20

申请号：AU2003227583

申请日：2003-04-09

Applicant: BASF AG

Inventor： SCHMIDT ANDEAS ,  KLOTZER MATTHIAS ,  OTTERBACH ANDREAS ,  STAROSTA DIETER ,  PFAB PETER ,  KRASE VOLKER

IPC: B01J10/00 ,  B01J19/00 ,  C07C263/04 ,  C07C265/14 ,  F28D9/00 ,  B01J6/00

公开(公告)号：FR2824064A1

公开(公告)日：2002-10-31

申请号：FR0205191

申请日：2002-04-25

Applicant: BASF AG

Inventor： LAQUA GERHARD ,  KLOTZER MATTHIAS ,  KRASE VOLKER ,  PFAB PETER ,  PFEFFINGER JOACHIM ,  SCHMIDT ANDREAS

IPC: C07C263/00 ,  C07C265/04 ,  C07C269/00 ,  C07C271/12 ,  C07C263/12

公开(公告)号：DE10111645A1

公开(公告)日：2002-09-19

申请号：DE10111645

申请日：2001-03-10

Applicant: BASF AG

Inventor： KLOETZER MATTHIAS ,  KRASE VOLKER ,  MORGENSCHWEIS KONRAD ,  PFAB PETER ,  SCHMIDT ANDREAS ,  STAROSTA DIETER

IPC: C07C263/04 ,  C07C265/14 ,  C08G18/08 ,  B01D3/00 ,  B01J19/24 ,  C07C263/18 ,  C08G18/22 ,  C08J11/04

公开(公告)号：CA2293319A1

公开(公告)日：1998-12-23

申请号：CA2293319

申请日：1998-06-18

Applicant: BASF AG

Inventor： STROEFER ECKHARD ,  SCHELLING HEINER ,  WATZENBERGER OTTO ,  PFAB PETER

IPC: B01D3/00 ,  C01B21/14

Abstract: The invention relates to a method for the production of highly pure aqueous solution from free hydroxylamine, wherein the diluted aqueous hydroxylamine solution is concentrated in a column, the vapor containing hydroxylamine is removed from the bottom of the column via a side-stream and highly pure hydroxylamine is obtained through condensation of the vapors. The inventive method is simple and mild, can be used in large-scale production and yields "electronic grade" hydroxylamine.

公开(公告)号：CA2293319C

公开(公告)日：2008-11-25

申请号：CA2293319

申请日：1998-06-18

Applicant: BASF AG

Inventor： STROFER ECKHARD ,  PFAB PETER ,  WATZENBERGER OTTO ,  SCHELLING HEINER

IPC: B01D3/00 ,  C01B21/14

Abstract: The invention relates to a method for the production of highly pure aqueous solution from free hydroxylamine, wherein the diluted aqueous hydroxylamine solution is concentrated in a column, the vapor containing hydroxylamine is removed from the bottom of the column via a side-stream and highly pure hydroxylamine is obtained through condensation of the vapors. The inventive method is simple and mild, can be used in large-scale production and yields "electronic grade" hydroxylamine.

公开(公告)号：DE502005001142D1

公开(公告)日：2007-09-13

申请号：DE502005001142

申请日：2005-01-27

Applicant: BASF AG

Inventor： SCHEIDEL JENS ,  JUNGKAMP TIM ,  BARTSCH MICHAEL ,  HADERLEIN GERD ,  BAUMANN ROBERT ,  LUYKEN HERMANN ,  DECKERT PETRA ,  PFAB PETER ,  SIEGEL WOLFGANG ,  AECHTNER TOBIAS

IPC: C07F9/00 ,  C07C253/34 ,  C07C255/04 ,  C07F9/02

Abstract: A process for extractively removing nickel(0) complexes having phosphorus ligands and/or free phosphorus ligands from a reaction effluent of a hydrocyanation of unsaturated mononitriles to dinitriles by extraction by means of a hydrocarbon, a phase separation of the hydrocarbon and of the reaction effluent into two phases being effected at a temperature T (in ° C.), wherein the content of nickel(0) complexes having phosphorus ligands and/or free phosphorus ligands in the reaction effluent of the hydrocyanation, depending on the temperature T, is at least y % by weight and, irrespective of the temperature T, is a maximum of 60% by weight, where the numerical value of the minimum content y is given by the equation y=0.5.T+20 and T is to be used in the equation as a dimensionless numerical value.