公开(公告)号：CA2640958A1

公开(公告)日：2007-08-30

申请号：CA2640958

申请日：2007-02-13

Applicant: BASF AG

Inventor： LEITNER ANDREAS ,  HADERLEIN GERD ,  SCHEIDEL JENS ,  AECHTNER TOBIAS ,  PFAB PETER ,  LUYKEN HERMANN

IPC: B01J31/24 ,  B01J31/18

Abstract: Preparation of nickel(0)-phosphorus ligand complexes (Q) containing at least a nickel(0) as central atom and at least a ligand containing phosphorus comprises reacting a nickel(II) compound with a reducing agent in the presence of the ligand to obtain a reaction mixture and extracting the obtained reaction mixture by adding at least a dinitrile, at least a hydrocarbon and at least two immiscible phases. Preparation of nickel(0)-phosphorus ligand complexes (Q) containing at least a nickel(0) as central atom and at least a ligand containing phosphorus comprises reacting a nickel(II) compound with a reducing agent in the presence of the ligand to obtain a reaction mixture, and extracting the obtained reaction mixture by adding at least a dinitrile, at least a hydrocarbon and at least two immiscible phases, where: the amount of nickel(0) content in the reaction mixture is at most 1.3 wt.%; the molar ratio of: the reducing agent to the nickel(II) compound is 1:1-1000:1, which is calculated as the molar ratio of the redox equivalent, and the ligand containing phosphorus to the nickel(II) compound is at most 30:1, which is calculated as the molar ratio of phosphorus and nickel atoms. Independent claims are included for: (1) a mixture comprising (Q), obtained by the above process; and (2) a method for the isomerization of unsaturated nitrile to linear unsaturated nitrile using (Q) as catalyst, which is regenerated by circulation method.

公开(公告)号：DE102004063381A1

公开(公告)日：2006-07-06

申请号：DE102004063381

申请日：2004-12-23

Applicant: BASF AG

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

IPC: C07C253/30 ,  B01J31/22 ,  B01J38/00 ,  C07C253/10 ,  C07C253/34 ,  C07C255/07

Abstract: Producing 3-pentenonitrile comprises isomerizing a 2-methyl-3-butenonitrile feed stream in the presence of a dissolved or dispersed catalyst, distilling the product stream to separate an overhead stream (2) from a catalyst-containing bottoms stream, distilling stream (2) to obtain an overhead stream enriched in (Z)-2-methyl-2-butenonitrile and a bottoms stream (5), and distilling stream (5) to produce a bottoms stream containing 3-pentenonitrile and an overhead stream containing 2-methyl-3-butenonitrile.

公开(公告)号：DE102004049339A1

公开(公告)日：2006-04-13

申请号：DE102004049339

申请日：2004-10-08

Applicant: BASF AG

Inventor： BARTSCH MICHAEL ,  BAUMANN ROBERT ,  HADERLEIN GERD ,  AECHTNER TOBIAS ,  SCHEIDEL JENS ,  LUYKEN HERMANN ,  PFAB PETER ,  SIEGEL WOLFGANG ,  WEISKOPF VERENA

IPC: C07B63/00 ,  C07B63/04

Abstract: A process for purifying phosphorus chelate ligands by extraction, by using polar extractants.

公开(公告)号：FR2824064B1

公开(公告)日：2006-03-10

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

公开(公告)号：CA2554736A1

公开(公告)日：2005-08-11

申请号：CA2554736

申请日：2005-01-27

Applicant: BASF AG

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

IPC: C07C253/10 ,  C07C255/07

Abstract: The invention relates to a method for producing 3-pentenenitrile, characterised by the following steps: (a) isomerisation of an educt stream containing 2-methyl-3-butenenitrile on at least one dissolved or dispersed isomerisation catalyst to form a stream (1), which contains the isomerisatio n catalyst(s), 2-methyl-3-butenenitrile, 3-pentenenitrile and (Z)-2-methyl-2- butenenitrile; (b) distillation of the stream (1) to obtain a stream (2) as the overhead product, which contains 2-methyl-3-butenenitrile, 3- pentenenitrile and (Z)-2-methyl-2-butenenitrile and a stream (3) as the bott om product, which contains the isomerisation catalyst(s); (c) distillation of t he stream (2) to obtain a stream (4) as the overhead product, which is enriched with (Z)-2-methyl-2-butenenitrile in comparison to stream (2), (in relation to the sum of all pentenenitriles in stream (2)) and a stream (5) as the bottom product, which is enriched with 3-pentenenitrile and 2-methyl-3-butenenitril e in comparison to stream (2), (in relation to the sum of all pentenenitriles in stream (2); (d) distillation of stream (5) to obtain a stream (6) as the bottom product, which contains 3-pentenenitrile and a stream (7) as the head product, which contains 2-methyl-3-butenenitrile.

公开(公告)号：CA2553778A1

公开(公告)日：2005-08-11

申请号：CA2553778

申请日：2005-01-27

Applicant: BASF AG

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

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

Abstract: The invention relates to a method for the extractive separation of nickel(0) complexes and phosphorus-containing ligands and/or free phosphorus-containin g ligands from a reaction discharge of a hydrocyanation of unsaturated mononitries to dinitriles, by means of a hydrocarbon, the hydrocarbon and th e reaction discharge being separated into two phases at a temperature T (in ~C ). The invention is characterised in that the content of nickel(0) complexes an d phosphorus-containing ligands and/or free phosphorus-containing ligands in t he reaction discharge of the hydrocyanation is at least y wt. %, depending on t he temperature T, and a maximum of 60 wt. % independently of the temperature T. The numerical value of the minimum content y is indicated by the equation y = 0,5 T + 20, T being a dimensionless numerical value.

公开(公告)号：DE19820114A1

公开(公告)日：1999-11-11

申请号：DE19820114

申请日：1998-05-06

Applicant: BASF AG

Inventor： PFEFFINGER JOACHIM ,  PFAB PETER ,  STROEFER ECKHARD

IPC: C07C263/04 ,  C07C263/20 ,  C07C265/14 ,  C08G18/72 ,  C07C265/04 ,  C07C265/10 ,  C07C269/04

Abstract: A process for the simultaneous production of (cyclo)aliphatic polyisocyanates comprises mixing the starting materials for isocyanate production via a phosgene free process to form the corresponding isocyanate and the resulting mixture is separated to form the pure isocyanate fraction.

公开(公告)号：AU8439098A

公开(公告)日：1999-01-04

申请号：AU8439098

申请日：1998-06-18

Applicant: BASF AG

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

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：BRPI0507197A

公开(公告)日：2007-06-26

申请号：BRPI0507197

申请日：2005-01-27

Applicant: BASF AG

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

IPC: C07C253/10 ,  C07C255/07

Abstract: A process is described for preparing 3-pentenenitrile, characterized by the following process steps: (a) isomerizing a reactant stream which comprises 2-methyl-3-butenenitrile over at least one dissolved or dispersed isomerization catalyst to give a stream 1 which comprises the at least one isomerization catalyst, 2-methyl-3-butenenitrile, 3-pentenenitrile and (Z)-2-methyl-2-butenenitrile, (b) distilling stream 1 to obtain a stream 2 as the top product which comprises 2-methyl-3-butenenitrile, 3-pentenenitrile and (Z)-2-methyl-2-butenenitrile, and a stream 3 as the bottom product which comprises the at least one isomerization catalyst, (c) distilling stream 2 to obtain a stream 4 as the top product which, compared to stream 2, is enriched in (Z)-2-methyl-2-butenenitrile, based on the sum of all pentenenitriles in stream 2, and a stream 5 as the bottom product which, compared to stream 2, is enriched in 3-pentenenitrile and 2-methyl-3-butenenitrile, based on the sum of all pentenenitriles in stream 2, (d) distilling stream 5 to obtain a stream 6 as the bottom product which comprises 3-pentenenitrile and a stream 7 as the top product which comprises 2-methyl-3-butenenitrile.

公开(公告)号：CA2582813A1

公开(公告)日：2006-04-27

申请号：CA2582813

申请日：2005-10-12

Applicant: BASF AG

Inventor： BARTSCH MICHAEL ,  BASSLER PETER ,  PFAB PETER ,  DECKERT PETRA ,  SIEGEL WOLFGANG ,  AECHTNER TOBIAS ,  HADERLEIN GERD ,  LUYKEN HERMANN ,  SCHEIDEL JENS

IPC: B01J38/56 ,  B01D11/04 ,  B01J31/18 ,  B01J31/24 ,  B01J31/40 ,  C07C253/10

Abstract: A process for extractively removing homogeneously dissolved catalysts from a reaction effluent of a hydrocyanation of unsaturated mononitriles to dinitriles with a hydrocarbon H, including performing the steps of a) concentrating the reaction effluent before step b) by distillation at pressures of from 0.1 to 5000 mbar and temperatures of from 10 to 150° C., b) adding a hydrocarbon H to the concentrated reaction effluent to obtain a stream I, and c) feeding stream I, without prior separation of the liquid phases, into an extraction apparatus and extracting it at a temperature T with the hydrocarbon H to obtain a stream II comprising the hydrocarbon H enriched with the catalyst and a stream III having a low catalyst content.