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    41.
    发明专利
    未知

    公开(公告)号：DE50304582D1

    公开(公告)日：2006-09-21

    申请号：DE50304582

    申请日：2003-05-21

    Applicant: BASF AG

    Inventor： MAIXNER STEFAN ,  BENISCH CHRISTOPH ,  LUYKEN HERMANN ,  BASSLER PETER ,  FISCHER ROLF-HARTMUTH ,  MELDER JOHANN-PETER ,  ANSMANN ANDREAS

    IPC: C07C253/34 ,  C07C209/84 ,  C07C211/09 ,  C07C211/12 ,  C07C255/09 ,  C07C255/24

    Abstract: A process for reducing the level of an aliphatic monounsaturated amine (IV) in a mixture (V) containing an aminonitrile (I) or a diamine (II) or a dinitrile (III) or mixtures thereof as well as said mine (IV) by a) reacting said mixture (V) with an anionic nucleophile (VI) which contains a nucleophilic atom selected from the group consisting of oxygen, nitrogen and sulfur, which is capable of taking up an H + ion to form an acid having a pK a value in the range from 7 to 11, as measured in water at 25° C., and which has a relative nucleophilicity, as measured in methyl perchlorate/methanol at 25° C., in the range from 3.4 to 4.7 when said nucleophilic atom is oxygen, in the range from 4.5 to 5.8 when said nucleophilic atom is nitrogen, and in the range from 5.5 to 6.8 when said nucleophilic atom is sulfur, in an amount in the range from 0.01 to 10 mol per mole of said amine (IV) in said mixture (V) at a temperature in the range from 50 to 200° C. to obtain a mixture (VII), b) distilling said aminonitrile (I) or said diamine (II) or said dinitrile (III) or mixtures thereof from said mixture (VII) at a temperature in the range from 50 to 200° C. and at a pressure in the range from 0.1 to 100 kPa to obtain a bottom product (VIII), which comprises c) distilling an aminonitrile (I) or diamine (II) or dinitrile (III) or mixtures thereof from said bottom product (VIII) at a temperature which is lower than that chosen in step b).

    42.
    发明专利
    未知

    公开(公告)号：AT335720T

    公开(公告)日：2006-09-15

    申请号：AT03755046

    申请日：2003-05-21

    Applicant: BASF AG

    Inventor： MAIXNER STEFAN ,  BENISCH CHRISTOPH ,  LUYKEN HERMANN ,  BASSLER PETER ,  FISCHER ROLF-HARTMUTH ,  MELDER JOHANN-PETER ,  ANSMANN ANDREAS

    IPC: C07C209/84 ,  C07C211/09 ,  C07C211/12 ,  C07C253/34 ,  C07C255/09 ,  C07C255/24

    Abstract: A process for reducing the level of an aliphatic monounsaturated amine (IV) in a mixture (V) containing an aminonitrile (I) or a diamine (II) or a dinitrile (III) or mixtures thereof as well as said mine (IV) by a) reacting said mixture (V) with an anionic nucleophile (VI) which contains a nucleophilic atom selected from the group consisting of oxygen, nitrogen and sulfur, which is capable of taking up an H + ion to form an acid having a pK a value in the range from 7 to 11, as measured in water at 25° C., and which has a relative nucleophilicity, as measured in methyl perchlorate/methanol at 25° C., in the range from 3.4 to 4.7 when said nucleophilic atom is oxygen, in the range from 4.5 to 5.8 when said nucleophilic atom is nitrogen, and in the range from 5.5 to 6.8 when said nucleophilic atom is sulfur, in an amount in the range from 0.01 to 10 mol per mole of said amine (IV) in said mixture (V) at a temperature in the range from 50 to 200° C. to obtain a mixture (VII), b) distilling said aminonitrile (I) or said diamine (II) or said dinitrile (III) or mixtures thereof from said mixture (VII) at a temperature in the range from 50 to 200° C. and at a pressure in the range from 0.1 to 100 kPa to obtain a bottom product (VIII), which comprises c) distilling an aminonitrile (I) or diamine (II) or dinitrile (III) or mixtures thereof from said bottom product (VIII) at a temperature which is lower than that chosen in step b).

    43.
    发明专利
    未知

    公开(公告)号：AT332327T

    公开(公告)日：2006-07-15

    申请号：AT03720432

    申请日：2003-04-08

    Applicant: BASF AG

    Inventor： WINTERLING HELMUT ,  BENISCH CHRISTOPH ,  HAHN THILO

    IPC: C08G69/00 ,  C08G69/04 ,  C08G69/08 ,  C08G69/16 ,  C08G69/20

    Abstract: A process for preparing a polyamide by reacting a mixture which comprises a monomer which has a nitrile group and has at least one other functional group capable of forming a carboxamide group, and comprises water, in the presence of titanium dioxide as catalyst, which comprises using titanium dioxide whose BET surface area, determined to the German standard DIN 66 131 volumetrically by the multipoint method, is in the range from 5 to 35 m2/g.

    Method for producing ethyldimethylamine and triet hylamine.
    44.
    发明专利
    Method for producing ethyldimethylamine and triet hylamine. 未知

    公开(公告)号：ZA200407045B

    公开(公告)日：2005-09-12

    申请号：ZA200407045

    申请日：2004-09-03

    Applicant: BASF AG

    Inventor： FUNKE FRANK ,  BOEHLING RALF ,  STEINBRENNER ULRICH ,  MUELLER GUENTER ,  BENISCH CHRISTOPH ,  GAUS GUENTER

    IPC: C07B61/00 ,  C07C209/60 ,  C07C211/05 ,  C07C211/08 ,  C07C

    Abstract: The present invention describes a process for the preparation of ethyldimethylamine and triethylamine with the following steps: (i) reaction of a mixture of diethylamine and dimethylamine with ethylene in the presence of a catalyst from the group of alkali metal dimethylamides, alkali metal diethylamides and alkali metal hydrides (ii) removal of the catalyst (iii) distillation separation of the resulting mixture in triethylamine and ethyldimethylamine and optionally diethylamine and dimethylamine (iv) optional return of the catalyst and of the starting amines to the reaction. The process according to the invention permits the coproduction of ethyldimethylamine and diethylamine in a simple process.

    46.
    发明专利
    未知

    公开(公告)号：BR0308820A

    公开(公告)日：2005-01-04

    申请号：BR0308820

    申请日：2003-04-08

    Applicant: BASF AG

    Inventor： WINTERLING HELMUT ,  BENISCH CHRISTOPH ,  HAHN THILO

    IPC: C08G69/00 ,  C08G69/04 ,  C08G69/08 ,  C08G69/16 ,  C08G69/20

    Abstract: A process for preparing a polyamide by reacting a mixture which comprises a monomer which has a nitrile group and has at least one other functional group capable of forming a carboxamide group, and comprises water, in the presence of titanium dioxide as catalyst, which comprises using titanium dioxide whose BET surface area, determined to the German standard DIN 66 131 volumetrically by the multipoint method, is in the range from 5 to 35 m2/g.

    50.
    发明专利
    未知

    公开(公告)号：DE10253095A1

    公开(公告)日：2004-06-17

    申请号：DE10253095

    申请日：2002-11-13

    Applicant: BASF AG

    Inventor： FISCHER ROLF-HARTMUTH ,  LUYKEN HERMANN ,  ANSMANN ANDREAS ,  BASLER PETER ,  BENISCH CHRISTOPH ,  MAIXNER STEFAN ,  MELDER JOHANN-PETER

    IPC: C07D201/08 ,  C07D201/16 ,  C07D223/10

    Abstract: A process for removing high boilers from crude caprolactam which comprises high boilers, caprolactam and in some cases low boilers, and which has been obtained by a) reacting 6-aminocapronitrile with water to give a reaction mixture b) removing ammonia and unconverted water from the reaction mixture to obtain crude caprolactam, which comprises c) feeding the crude caprolactam to a distillation apparatus to obtain a first substream via the top as a product and a second substream via the bottom, by setting the pressure in the distillation in such a way that the bottom temperature does not go below 170° C., and adjusting the second substream in such a way that the caprolactam content of the second substream is not less than 10% by weight, based on the entire second substream.

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