中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

171 records (took 0.025 seconds)

    92.
    发明专利
    未知

    公开(公告)号：BR0211455A

    公开(公告)日：2004-08-17

    申请号：BR0211455

    申请日：2002-07-16

    Applicant: BASF AG

    Inventor： BARTSCH MICHAEL ,  BAUMANN ROBERT ,  KUNSMANN-KEITEL DAGMAR PASCALE ,  HADERLEIN GERD ,  JUNGKAMP TIM ,  ALMAYER MARCO ,  SIEGEL WOLFGANG

    IPC: B01J31/22 ,  B01J23/755 ,  B01J31/18 ,  B01J31/24 ,  C07B61/00 ,  C07C253/10 ,  C07C255/04

    Abstract: A system comprising a) Ni(0) b) from 4 to 10 mol per mol of Ni(0) in a) of a compound (I) of the formula P(X1R1)(X2R2)(X3R3)  (I) where X1, X2, X3 are each, independently of one another, oxygen or a single bond, R1, R2, R3 are, independently of one another, identical or different organic radicals and c) from 1 to 4 mol per mol of Ni(0) in a) of a compound (II) of the formula where X11, X12, X13 X21, X22, X23 are each, independently of one another, oxygen or a single bond, R11, R12 are identical or different, individual or bridged organic radicals, R21, R22 are identical or different, individual or bridged organic radicals and Y is a bridging group is suitable as catalyst for preparing mixtures of monoolefinic C5 mononitriles having nonconjugated C═C and C═N bonds by hydrocyanation of a 1,3-butadiene-containing hydrocarbon mixture and for preparing a dinitrile by hydrocyanation of a mixture of monoolefinic C5 mononitriles having nonconjugated C═C and C═N bonds.

    METHOD FOR REMOVING WATER FROM A MIXTURE CONTAINING WATER AND ZINC CHLORIDE
    93.
    发明专利
    METHOD FOR REMOVING WATER FROM A MIXTURE CONTAINING WATER AND ZINC CHLORIDE 未知

    公开(公告)号：AU2003244640A1

    公开(公告)日：2004-02-02

    申请号：AU2003244640

    申请日：2003-07-04

    Applicant: BASF AG

    Inventor： LUYKEN HERMANN ,  BARTSCH MICHAEL ,  BAUMANN ROBERT ,  HADERLEIN GERD ,  JUNGKAMP TIM ,  SCHEIDEL JENS

    IPC: B01D3/36 ,  C01G9/04 ,  F26B5/00 ,  F26B7/00 ,  C07C253/34

    Abstract: A process for the removal of water from a mixture comprising water and zinc chloride, which comprises adding to said mixture comprising water and zinc chloride an aprotic, polar diluent whose boiling point in the case where an azeotrope is not formed between said diluent and water under the pressure conditions of the distillation mentioned below is higher than the boiling point of water and which is in liquid form at this boiling point of water or which forms an azeotrope or heteroazeotrope with water under the pressure and temperature conditions of the distillation mentioned below, and distilling the mixture comprising water, zinc chloride and the diluent with removal of water or said azeotrope or said heteroazeotrope from this mixture, giving an anhydrous mixture comprising zinc chloride and said diluent.

    Recovery of a Lewis acid from a reaction mixture, prepared by hydrocyanation of an olefinically unsaturated compound to form a nitrile, comprises phase separation and distillation
    94.
    发明专利
    Recovery of a Lewis acid from a reaction mixture, prepared by hydrocyanation of an olefinically unsaturated compound to form a nitrile, comprises phase separation and distillation 未知

    公开(公告)号：DE10231292A1

    公开(公告)日：2004-01-29

    申请号：DE10231292

    申请日：2002-07-10

    Applicant: BASF AG

    Inventor： JUNGKAMP TIM ,  SCHEIDEL JENS ,  LUYKEN HERMANN ,  BARTSCH MICHAEL ,  BAUMANN ROBERT ,  HADERLEIN GERD

    IPC: C07C253/10 ,  C07C255/07 ,  C07C253/34

    Abstract: A process for the recovery of a Lewis acid from a reaction mixture prepared by hydrocyanation of an olefinically unsaturated compound to form a nitrile that under certain conditions of quantities, pressure and temperature exhibit a miscibility gap with water, in the presence of a catalyst system containing a Lewis acid and a complex compound comprises phase separation and distillation. A process for the recovery of a Lewis acid from a reaction mixture (I), prepared by hydrocyanation of an olefinically unsaturated compound to form a nitrile that under certain conditions of quantities, pressure and temperature exhibit a miscibility gap with water, in the presence of a catalyst system containing a Lewis acid and a complex compound comprising a phosphorous containing ligand and a central atom is characterized in that: (a) the complex compound is separated from the mixture (I) to yield a mixture (II); (b) mixing of the mixture (II) with water under pressure and temperature to form a phase (III) that contains a higher water content than the nitrile and a phase (IV) having a higher nitrile content than water whereby the phase (III) has a higher content of Lewis acid than phase (IV); (c) mixing of the phase (III) with a liquid diluent (V) that does not form an azeotrope with water and whose b.pt. is higher than that of water or under certain conditions of pressure forms an azeotrope or a heteroazeotrope with water; (d) distillation of the mixture of (III) and (V) to yield a mixture (VI) having a higher water content than the diluent (V) and a mixture (VII) having a higher diluent (V) content than water whereby the mixture (VII) has a higher Lewis acid content than the mixture (VI) and; (e) addition of the mixture (VII) to a hydrocyanation of an olefinically unsaturated compound to form a nitrile that under certain conditions of quantities, pressure and temperature exhibit a miscibility gap with water, in the presence of a catalyst system containing a Lewis acid and a complex compound comprising a phosphorous containing ligand and a central atom.

    95.
    发明专利
    未知

    公开(公告)号：DE10231296A1

    公开(公告)日：2004-01-22

    申请号：DE10231296

    申请日：2002-07-10

    Applicant: BASF AG

    Inventor： JUNGKAMP TIM ,  SCHEIDEL JENS ,  LUYKEN HERMANN ,  BARTSCH MICHAEL ,  BAUMANN ROBERT ,  HADERLEIN GERD

    IPC: B01D3/36 ,  C01G9/04 ,  F26B5/00 ,  F26B7/00

    Abstract: A process for the removal of water from a mixture comprising water and zinc chloride, which comprises adding to said mixture comprising water and zinc chloride an aprotic, polar diluent whose boiling point in the case where an azeotrope is not formed between said diluent and water under the pressure conditions of the distillation mentioned below is higher than the boiling point of water and which is in liquid form at this boiling point of water or which forms an azeotrope or heteroazeotrope with water under the pressure and temperature conditions of the distillation mentioned below, and distilling the mixture comprising water, zinc chloride and the diluent with removal of water or said azeotrope or said heteroazeotrope from this mixture, giving an anhydrous mixture comprising zinc chloride and said diluent.

Patent Agency Ranking