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    METHOD FOR THE PRODUCTION OF CAPROLACTAM
    4.
    发明专利
    METHOD FOR THE PRODUCTION OF CAPROLACTAM 未知

    公开(公告)号：MY124542A

    公开(公告)日：2006-06-30

    申请号：MYPI20012659

    申请日：2001-06-07

    Applicant: BASF AG

    Inventor： DR FRANK OHLBACH ,  DR ANDREAS ANSMANN ,  DR JOHANN-PETER MELDER ,  DR ROLF-HARTMUTH FISCHER

    IPC: C07D201/08 ,  C07B61/00 ,  C07D233/10 ,  C07D223/10

    Abstract: A PROCESS IS PROVIDED FOR THE PREPARATION OF CAPROLACTAM FROM A COMPOUND OF FORMULA (1) :NC ? (CH2)5 ? CO ? R IN WHICH R IS A CARBOXAMIDE, CARBOXYLIC ACID OR CARBOXYLIC ACID ESTER GROUP, WHEREIN A) A COMPOUND (I) OR A MIXTURE OF SUCH COMPOUNDS, IN THE PRESENCE OF AMMONIA AND OPTIONALLY A LIQUID DILUENT (VI), IS HYDROGENATED WITH HYDROGEN IN THE PRESENCE OF A CATALYST (II) TO GIVE A MIXTURE (III), B) THE HYDROGEN AND THE CATALYST (II) ARE SEPARATED FROM THE MIXTURE (III) TO GIVE A MIXTURE (IV), AND (C) THE MIXTURE (IV), OPTIONALLY IN THE PRESENCE OF A LIQUID DILUENT (VII), IS CONVERTED TO CAPROLACTAM IN THE PRESENCE OF A CATALYST (V).

    PREPARATION OF BUTANEDIOL
    5.
    发明专利
    PREPARATION OF BUTANEDIOL 未知

    公开(公告)号：MY131137A

    公开(公告)日：2007-07-31

    申请号：MYPI20032156

    申请日：2003-06-10

    Applicant: BASF AG

    Inventor： DR MICHAEL HESSE ,  ALEXANDER WECK ,  DR ROLF-HARTMUTH FISCHER ,  DR STEPHAN SCHLITTER ,  DR MARKUS R0XD6SCH ,  DR GUNNAR HEYDRICH ,  DR NILS BOTTKE ,  GUNTHER WINDECKER ,  DR HOLGER BORCHERT ,  DR MARKUS SCHUBERT

    IPC: C07C29/149 ,  C07B61/00 ,  C07C31/20

    Abstract: THE PRESENT INVENTION RELATES TO A PROCESS FOR PREPARING OPTIONALLY ALKYL-SUBSTITUTED 1,4-BUTANEDIOL BY TWO-STAGE CATALYTIC HYDROGENATION IN THE GAS PHASE OF C4-DICARBOXYLIC ACIDS AND/OR OF DERIVATIVES THEREOF HAVING THE FOLLOWING STEPS: A) INTRODUCING A GAS STREAM OF A C4-DICARBOXYLIC ACID OR OF A DERIVATIVE THEREOF AT FROM 200 TO 300?C AND FROM 10 TO 100 BAR INTO A FIRST REACTOR OR INTO A FIRST REACTION ZONE OF A REACTOR AND CATALYTICALLY HYDROGENATING IT IN THE GAS PHASE TO A PRODUCT WHICH CONTAINS MAINLY OPTIONALLY ALKYL-SUBSTITUTED ?-BUTYROLACTONE; B) INTRODUCING THE PRODUCT STREAM OBTAINED IN THIS WAY INTO A SECOND REACTOR OR INTO A SECOND REACTION ZONE OF A REACTOR AT A TEMPERATURE OF FROM 140?C TO 260?C AND CATALYTICALLY HYDROGENATING IT IN THE GAS PHASE TO OPTIONALLY ALKYL-SUBSTITUTED 1,4-BUTANEDIOL; STEPS A) AND B) BEING CARRIED OUT AT THE SAME PRESSURE; C) REMOVING THE DESIRED PRODUCT FROM INTERMEDIATES, BY-PRODUCTS AND ANY UNCONVERTED REACTANTS; D) OPTIONALLY RECYCLING UNCONVERTED INTERMEDIATES INTO ONE OR BOTH HYDROGENATION STAGES,SAID HYDROGENATION STAGES EACH USING A CATALYST WHICH COMPRISES 5% BY WEIGHT,PREFERABLY FROM 5 TO 95% BY WEIGHT, IN PARTICULAR FROM 20 TO 90% BY WEIGHT, OF AN OXIDIC SUPPORT, AND THE PRODUCT MIXTURE REMOVED FROM THE FIRST HYDROGENATION STAGE BEING INTRODUCED WITHOUT FURTHER PURIFICATION INTO THE SECOND HYDROGENATION STAGE.

    PREPARATION OF CAPROLACTAM
    6.
    发明专利
    PREPARATION OF CAPROLACTAM 未知

    公开(公告)号：MY122991A

    公开(公告)日：2006-05-31

    申请号：MYPI20011884

    申请日：2001-04-20

    Applicant: BASF AG

    Inventor： DR EBERHARD FUCHS ,  DR PETER BA?LER ,  DR JOHANN-PETER MELDER ,  DIETER BAUMANN ,  DR ROLF-HARTMUTH FISCHER

    IPC: C07D201/08 ,  C07D223/12

    Abstract: A PROCESS FOR THE PREPARATION OF CAPROLACTAM, WHEREIN (A) A MIXTURE (I) CONTAINING 6-AMINOCAPRONITRILE AND WATER IS CAUSED TO REACT IN THE VAPOR PHASE IN THE PRESENCE OF A CATALYST TO FORM A MIXTURE (II) CONTAINING CAPROLACTAM, AAMMONIA, WATER , HIGH BOILING COMPONENTS AND LOW BOILING COMPONENTS, (B)AMMONIA IS REMOVED FROM MIXTURE (II) TO GIVE A MIXTURE (III) COMPONENTS AND LOW BOILING COMPONENTS, (C) WATER IS REMOVED FROM MIXTURE (III) TO GIVE A MIXTURE (IV) CONTAINING CAPROLACTAM, HIGH BOILING COMPONENTS AND LOW BOILING AND (D) A SOLID V CONTAINING CAPROLACTAM IS THEN THE OBTAINED FROM THE MIXTURE (IV) BY RECRYSTALLIZATION, THE PROPOTION BY WEIGHT OF CAPROLACTAM IN SOILD (V) BEING GREATER THAN IN MIXTURE (IV).

    CONTINUOUS PREPARATION OF POLYAMIDES FROM AMINONITRILES
    10.
    发明专利
    CONTINUOUS PREPARATION OF POLYAMIDES FROM AMINONITRILES 未知

    公开(公告)号：MY134046A

    公开(公告)日：2007-11-30

    申请号：MYPI20013202

    申请日：2001-07-05

    Applicant: BASF AG

    Inventor： DR PETER BA?LER ,  DR HELMUT WINTERLING ,  DR ROLF-HARTMUTH FISCHER ,  DR WOLFGANG LOTH

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

    Abstract: THE CONTINUOUS PROCESS FOR PREPARING A POLYAMIDE BY REACTING AT LEAST ONE AMINONITRILE WITH WATER COMPRISES: (1) REACTING AT LEAST ONE AMINONITRILE WITH WATER IN THE PRESENCE OF AN ORGANIC LIQUID DILUENT AT FROM 90 TO 400?C AND FROM 0.1 TO 35 X 106 PA IN A FLOW TUBE CONTAINING A BRONSTED ACID CATALYST SELECTED FROM A BETA-ZEOLITE CATALYST, A SHEET-SILICATE CATALYST OR A TITANIUM DIOXIDE CATALYST COMPRISING FROM 70 TO 100% BY WEIGHT OF ANATASE AND FROM 0 TO 30% BY WEIGHT OF RUTILE AND IN WHICH UP TO 40% BY WEIGHT OF THE TITANIUM DIOXIDE MAY BE REPLACED BY TUNGSTEN OXIDE, TO OBTAIN A REACTION MIXTURE,(2) FURTHER REACTING THE REACTION MIXTURE AT FROM 150 TO 400?C AND A PRESSURE WHICH IS LOWER THAN THE PRESSURE IN STAGE 1 IN THE PRESENCE OF A BRONSTED ACID CATALYST SELECTED FROM A BETAZEOLITE CATALYST.A SHEET-SILICATE CATALYST OR A TITANIUM DIOXIDE CATALYST COMPRISING FROM 70 TO 100% BY WEIGHT OF ANATASE AND FROM 0 TO 30% BY WEIGHT OF RUTILE AND IN WHICH UP TO 40% BY WEIGHT OF THE TITANIUM DIOXIDE MAY BE REPLACED BY TUNGSTEN OXIDE. THE TEMPERATURE AND PRESSURE BEING SELECTED SO AS TO OBTAIN A FIRST GAS PHASE AND A FIRST LIQUID PHASE OR A FIRST SOLID PHASE OR A MIXTURE OF FIRST SOLID AND FIRST LIQUID PHASES AND SO THAT THE FIRST GAS PHASE IS SEPARATED FROM THE FIRST LIQUID PHASE OR FIRST SOLID PHASE OR FROM THE .MIXTURE OF FIRST LIQUID AND FIRST SOLID PHASES. AND (3) ADMIXING THE FIRST LIQUID OR THE FIRST SOLID PHASE OR THE MIXTURE OF FIRST LIQUID AND FIRST SOLID PHASES WITH A GASEOUS OR LIQUID PHASE COMPRISING WATER AT FROM 150 TO 370?C AND FROM 0.1 TO 30 X 106 Pa, TO OBTAIN A PRODUCT MIXTURE.

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