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    12.
    发明专利
    未知

    公开(公告)号：DE10341614A1

    公开(公告)日：2005-04-28

    申请号：DE10341614

    申请日：2003-09-10

    Applicant: BASF AG

    Inventor： HUGO RANDOLF ,  JOURDAN SABINE ,  WENZ KIRSTEN ,  PREISS THOMAS ,  WECK ALEXANDER

    IPC: C07C209/48 ,  C07C211/27 ,  C07C253/24 ,  C07C253/34 ,  C07C209/82

    Abstract: A process for preparing xylylenediamine, comprising the steps of ammoxidizing xylene to phthalonitrile and hydrogenating the phthalonitrile, which comprises contacting the vaporous product of the ammoxidation stage directly with a liquid organic solvent or with molten phthalonitrile (quench), partly or fully removing components having a boiling point lower than phthalonitrile (low boilers) from the resulting quench solution or suspension or phthalonitrile melt and, after the low boiler removal and before the hydrogenation, removing products having a boiling point higher than phthalonitrile (high boilers).

    Direct preparation of vinylphosphonic acid and esters useful as comonomers in adhesive or flame-retardant plastics production
    17.
    发明专利
    Direct preparation of vinylphosphonic acid and esters useful as comonomers in adhesive or flame-retardant plastics production 未知

    公开(公告)号：DE19828419A1

    公开(公告)日：1999-12-30

    申请号：DE19828419

    申请日：1998-06-25

    Applicant: BASF AG

    Inventor： BECKER HEIKE ,  HENKELMANN JOCHEM ,  BOETTCHER ARND ,  PREISS THOMAS ,  SLANY MICHAEL

    IPC: C07F9/48 ,  C07F9/38 ,  C07F9/40

    Abstract: The preparation of vinylphosphonic acid compounds (I) by reacting phosphorous acid compounds (II) with acetylene is carried out in the presence of palladium(0) (Pd(0)) complexes or corresponding platinum (Pt) complexes with bidentate ligands (III) as catalyst. The preparation of vinylphosphonic acid compounds of formula (I) by reacting phosphorous acid compounds of formula (II) with acetylene is carried out in the presence of palladium(0) (Pd(0)) complexes or corresponding platinum (Pt) complexes with bidentate ligands of formula (III) as catalyst. R , R = hydrogen (H), 1-16 carbon (C) alkyl, 6-12 C aryl, 7-12 C alkaryl or 7-12 C aralkyl, optionally mono- or poly-substituted by halogen, hydroxyl, acyl or acetoxy; X = ferrocenylene or 1-6 C alkylene (optionally interrupted with oxygen (O), sulfur (S) or imino (NR'') in the chain; R'' = H, 1-6 C alkyl, 6-12 C aryl, 7-13 C alkaryl, 7-13 C aralkyl or 5-8 C cycloalkyl; R = 1-12 C alkyl, 6-12 C aryl, 5-8 C cycloalkyl, 7-13 C aralkyl, 7-13 C alkaryl or 7-16 C alkoxyaryl; or 2 R attached to one phosphorus (P) atom = 5-8 C alkylene or 6-10 C cycloalkylene. An Independent claim is also included for the use of the Pd(0) or corresponding Pt complexes in the preparation of (I).

    18.
    发明专利
    未知

    公开(公告)号：AT380788T

    公开(公告)日：2007-12-15

    申请号：AT04764997

    申请日：2004-09-09

    Applicant: BASF AG

    Inventor： HUGO RANDOLF ,  WENZ KIRSTEN ,  JOURDAN SABINE ,  PREISS THOMAS

    IPC: C07C209/48 ,  C07C211/27

    Abstract: The invention relates to a method for the production of diaminoxylene, by continuous hydrogenation of liquid phthalonitrile, on a heterogeneous catalyst, in the presence of liquid ammonia, in a reactor, whereby a part of the reactor product is continuously recycled to the reactor feed as a liquid recycle stream (recirculating loop). A flow of fused phthalonitrile is added as a liquid to the recycle stream around the hydrogenation reactor in a mixing device, whereby the phthalonitrile conversion in the reactor on a single pass is greater than 99 % and the recycle stream comprises more than 93 % by weight of liquid ammonia and diaminoxylene and contains no further solvent for phthalonitrile.

    19.
    发明专利
    未知

    公开(公告)号：DE102005045806A1

    公开(公告)日：2007-03-29

    申请号：DE102005045806

    申请日：2005-09-24

    Applicant: BASF AG

    Inventor： WENZ KIRSTEN ,  HUBER SABINE ,  HUGO RANDOLF ,  MELDER JOHANN-PETER ,  PREISS THOMAS

    IPC: C07C209/48 ,  B01J23/70 ,  C07C209/84 ,  C07C209/86 ,  C07C211/27

    Abstract: Process for preparing o-, m- or p-xylylenediamine by hydrogenation of o-, m- or p-phthalonitrile in the presence of a heterogenous catalyst, which comprises feeding a solution of the phthalonitrile in the corresponding isomer of crude xylylenediamine into the hydrogenation reactor, with the crude xylylenediamine having a purity in the range from 85 to 99.7% by weight and a content of higher boilers in the range from 0.3 to 15% by weight.

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