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    11.
    发明专利
    未知

    公开(公告)号：BRPI0516617A

    公开(公告)日：2008-09-16

    申请号：BRPI0516617

    申请日：2005-10-12

    Applicant: BASF AG

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

    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.

    14.
    发明专利
    未知

    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.

    IMPROVED PROCESS FOR PRODUCING NICKEL(0)-PHOSPHORUS LIGAND COMPLEXES
    15.
    发明专利
    IMPROVED PROCESS FOR PRODUCING NICKEL(0)-PHOSPHORUS LIGAND COMPLEXES 未知

    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.

    METHOD FOR PRODUCING LINEAR PENTENENITRILE
    18.
    发明专利
    METHOD FOR PRODUCING LINEAR PENTENENITRILE 未知

    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.

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