中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

10 records (took 0.021 seconds)

    1.
    发明专利
    未知

    公开(公告)号：DE502005004359D1

    公开(公告)日：2008-07-17

    申请号：DE502005004359

    申请日：2005-10-12

    Applicant: BASF SE

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

    IPC: B01J38/56 ,  B01D11/04 ,  B01J31/18 ,  B01J31/24 ,  C07C253/10 ,  C07C253/32

    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.

    2.
    发明专利
    未知

    公开(公告)号：AT512717T

    公开(公告)日：2011-07-15

    申请号：AT07704548

    申请日：2007-02-13

    Applicant: BASF SE

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

    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.

    4.
    发明专利
    未知

    公开(公告)号：AT397489T

    公开(公告)日：2008-06-15

    申请号：AT05798767

    申请日：2005-10-12

    Applicant: BASF SE

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

    IPC: B01J31/40 ,  B01D11/04 ,  B01J31/18 ,  B01J31/24 ,  B01J38/56 ,  C07C253/10 ,  C07C253/32

    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.

    7.
    发明专利
    未知

    公开(公告)号：BRPI0707971A2

    公开(公告)日：2011-05-17

    申请号：BRPI0707971

    申请日：2007-02-13

    Applicant: BASF SE

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

    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.

    8.
    发明专利
    未知

    公开(公告)号：AT526336T

    公开(公告)日：2011-10-15

    申请号：AT07787009

    申请日：2007-07-03

    Applicant: BASF SE

    Inventor： BAUMANN ROBERT ,  AECHTNER TOBIAS ,  SIEGEL WOLFGANG ,  LUYKEN HERMANN ,  PFAB PETER ,  SCHEIDEL JENS ,  LEITNER ANDREAS ,  GLASS ANDREAS

    IPC: C07F9/48

    Abstract: Method of producing compounds of the general formula XPR2(OR1)  Ia where X is chlorine, bromine or iodine and R1 is an organic radical, by reacting compounds of the general formula X2PR2  II, in which X has the meaning given above and R2 is an organic radical, with compounds of the general formula R1OH  III, in which R1 has the meaning given above, to give a mixture IV, in that a) the postreaction is carried out at a temperature of from 50 to 240° C. and a pressure of from 0.001 to 0.9 bar, b) from the mixture IV the compounds Ia are separated off from the compounds PR2(OR1)2  Ib and, if appropriate, the compounds II and c) compounds Ib and, if appropriate, unreacted compounds II are returned to the synthesis stage.

    10.
    发明专利
    未知

    公开(公告)号：AT507202T

    公开(公告)日：2011-05-15

    申请号：AT05707029

    申请日：2005-01-27

    Applicant: BASF SE

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

    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.

Patent Agency Ranking