2.
    发明专利
    未知

    公开(公告)号:BRPI0408700A

    公开(公告)日:2006-03-07

    申请号:BRPI0408700

    申请日:2004-03-19

    Applicant: BASF AG

    Abstract: Polyamides, oligomers thereof or mixtures thereof, if required with further reaction products, are prepared by reacting aminonitriles or dinitriles and diamines or a mixture containing aminonitrile, dinitrile and diamine, and, if required, further polyamide-forming monomers and/oligomers with water in a reactor ( 1 ) having a vertically oriented longitudinal axis, by a process in which, in the reactor ( 1 ), the reaction product is removed from the bottom and ammonia formed and any further low molecular weight compounds formed and water are taken off via the top ( 2 ), wherein the reactor ( 1 ) has at least two chambers ( 4 ) arranged one on top of the other in the longitudinal direction, the chambers ( 4 ) being separated from one another by liquid-tight trays ( 5 ), each chamber ( 4 ) being connected by a liquid overflow ( 6 ) to the chamber ( 4 ) directly underneath and a liquid product stream being taken off by the liquid overflow ( 6 ) of the lowermost chamber ( 4 ), the gas space ( 7 ) above the liquid level in each chamber ( 4 ) being connected to the chamber ( 4 ) arranged directly above in each case by one or more conduit pipes ( 8 ) which in each case opens or open into a gas distributor ( 9 ) having orifices ( 11 ) for gas exit below the liquid level, and comprising in each case at least one baffle plate ( 12 ) which is arranged vertically around each gas distributor ( 9 ) and whose upper end terminates below the liquid level and whose lower end terminates above the liquid-tight tray ( 5 ) of the chamber ( 4 ) and which separates each chamber ( 4 ) into one or more gassed ( 13 ) and into one or more ungassed ( 14 ) spaces.

    3.
    发明专利
    未知

    公开(公告)号:DE10313681A1

    公开(公告)日:2004-10-07

    申请号:DE10313681

    申请日:2003-03-26

    Applicant: BASF AG

    Abstract: Polyamides, oligomers thereof or mixtures thereof, if required with further reaction products, are prepared by reacting aminonitriles or dinitriles and diamines or a mixture containing aminonitrile, dinitrile and diamine, and, if required, further polyamide-forming monomers and/oligomers with water in a reactor ( 1 ) having a vertically oriented longitudinal axis, by a process in which, in the reactor ( 1 ), the reaction product is removed from the bottom and ammonia formed and any further low molecular weight compounds formed and water are taken off via the top ( 2 ), wherein the reactor ( 1 ) has at least two chambers ( 4 ) arranged one on top of the other in the longitudinal direction, the chambers ( 4 ) being separated from one another by liquid-tight trays ( 5 ), each chamber ( 4 ) being connected by a liquid overflow ( 6 ) to the chamber ( 4 ) directly underneath and a liquid product stream being taken off by the liquid overflow ( 6 ) of the lowermost chamber ( 4 ), the gas space ( 7 ) above the liquid level in each chamber ( 4 ) being connected to the chamber ( 4 ) arranged directly above in each case by one or more conduit pipes ( 8 ) which in each case opens or open into a gas distributor ( 9 ) having orifices ( 11 ) for gas exit below the liquid level, and comprising in each case at least one baffle plate ( 12 ) which is arranged vertically around each gas distributor ( 9 ) and whose upper end terminates below the liquid level and whose lower end terminates above the liquid-tight tray ( 5 ) of the chamber ( 4 ) and which separates each chamber ( 4 ) into one or more gassed ( 13 ) and into one or more ungassed ( 14 ) spaces.

    PREPARACION DE PRODUCTOS DE OXIDACION DEL CICLOHEXANO EN CONTRACORRIENTE

    公开(公告)号:CO4870778A1

    公开(公告)日:1999-12-27

    申请号:CO97060781

    申请日:1997-10-16

    Applicant: BASF AG

    Abstract: Un proceso para la preparación de productos de oxidación delciclohexano por oxidación catalítica con gases que contiene oxígeno en la fase líquida a temperatura elevada, donde los gases son puestos en contacto esencialmente en forma uniforme con el ciclohexano líquido en al menos una zona de reacción caracterizada porque el ciclohexano líquido y los gases que contiene oxígeno son pasados en contracorriente a través de la zona de reacción. Un proceso como el reivindicado en la reivindicación 1, caracterizada porque la temperatura del gas residual es inferior que la temperatura inferior de reacción en la zona de reacción. Un proceso como el reivindicado en la reivindicación 1 ó 2, caracterizado porque los gases son introducidos en la zona de reacción a través de una pluralidad de boquillas. Un proceso como el reivindicado en cualquiera de las reivindicaciones 1 a 3, caracterizado porque la velocidad de salida de los gases que contiene oxígeno en cada orificio de boquilla es de 0,01 a 1 m/s, preferiblemente de 0,03 a 0,3 m/s y la cantidad que entra de cada orificio es de 0,001 a 10 l/s preferiblemente de 0,1 a 1,0 l/s.

    METHOD FOR PRODUCING POLYAMIDES
    10.
    发明专利

    公开(公告)号:MY139354A

    公开(公告)日:2009-09-30

    申请号:MYPI20040965

    申请日:2004-03-18

    Applicant: BASF AG

    Abstract: POLYAMIDES, OLIGOMERS THEREOF OR MIXTURES THEREOF, IF REQUIRED WITH FURTHER REACTION PRODUCTS, ARE PREPARED BY REACTING AMINONITRILES OR DINITRILES AND DIAMINES OR A MIXTURE CONTAINING AMINONITRILE, DINITRILE AND DIAMINE, AND, IF REQUIRED, FURTHER POLYAMIDE-FORMING MONOMERS AND/OLIGOMERS WITH WATER IN A REACTOR (1) HAVING A VERTICALLY ORIENTED LONGITUDINAL AXIS, BY A PROCESS IN WHICH, IN THE REACTOR (1), THE REACTION PRODUCT IS REMOVED FROM THE BOTTOM AND AMMONIA FORMED AND ANY FURTHER LOW MOLECULAR WEIGHT COMPOUNDS FORMED AND WATER ARE TAKEN OFF VIA THE TOP (2), WHEREIN THE REACTOR (1) -HAS AT LEAST TWO CHAMBERS (4) ARRANGED ONE ON TOP OF THE OTHER IN THE LONGITUDINAL DIRECTION, -THE CHAMBERS (4) BEING SEPARATED FROM ONE ANOTHER BY LIQUID-TIGHT TRAYS (5),-EACH CHAMBER (4) BEING CONNECTED BY A LIQUID OVERFLOW (6) TO THE CHAMBER (4) DIRECTLY UNDERNEAT,H AND A LIQUID PRODUCT STREAM BEING TAKEN OFF BY THE LIQUID OVERFLOW (6) OF THE LOWERMOST CHAMBER (4), -THE GAS SPACE (7) ABOVE THE LIQUID LEVEL IN EACH CHAMBER (4) BEING CONNECTED TO THE CHAMBER (4) ARRANGED DIRECTLY ABOVE IN EACH CASE BY ONE OR MORE CONDUIT PIPES (8) WHICH IN EACH CASE OPENS OR OPEN INTO A GAS DISTRIBUTOR (9) HAVING ORIFICES (11) FOR GAS EXIT BELOW THE LIQUID LEVEL, -AND COMPRISING IN EACH CASE AT LEAST ONE BAFFLE PLATE (12) WHICH IS ARRANGED VERTICALLY AROUND EACH GAS DISTRIBUTOR (9) AND WHOSE UPPER END TERMINATES BELOW THE LIQUID LEVEL AND WHOSE LOWER END TERMINATES ABOVE THE LIQUID-TIGHT TRAY (5) OF THE CHAMBER (4) AND WHICH SEPARATES EACH CHAMBER (4) INTO ONE OR MORE GASSED (13) AND INTO ONE OR MORE UNGASSED (14) SPACES.

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