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    1.
    发明专利
    未知

    公开(公告)号：DE10133788A1

    公开(公告)日：2003-02-06

    申请号：DE10133788

    申请日：2001-07-16

    Applicant: BASF AG

    Inventor： WALCZUCH KARL-HEINZ ,  POLT AXEL ,  POPLOW FRANK ,  LUYKEN HERMANN ,  MECKL STEFAN ,  AUER HEINZ

    IPC: C01C1/02 ,  C01C1/10

    Abstract: The invention relates to a method for the separation of ammonia from a mixture which contains ammonia and whose boiling point in an ammonia-free state is more than 50 DEG C higher than the boiling point of pure ammonia, characterized in that said method comprises n stages, n being a natural number of at least 2, wherein a) said mixture is fed to stage 1; b) at each stage m, m being a natural number of 1 to n-1, part of the ammonia is separated from the educt mixture fed from stage 1 at a pressure Pm by means of evaporation in order to obtain a product mixture which has an ammonia content corresponding to pressure Pm and temperature tm, and gaseous ammonia, c) the product mixture obtained in stage m is used in step m+1 as an educt mixture, with the exception of stage n, according to step b), d) in step n, the ammonia is separated at a pressure Pn and temperature tn either partially or fully from the educt mixture fed from stage n-1 by means of evaporation in order to obtain a product and gaseous ammonia, each pressure Pm being greater than Pm+1.

    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

    Inventor： DEININGER JUERGEN ,  DEMETER JUERGEN ,  KORY GAD ,  SOEJE OLIVER ,  WINTERLING HELMUT ,  ZEHNER PETER ,  HEEGER MICHAEL ,  GANN MARTIN ,  POLT AXEL ,  TREULING ULRICH ,  WEINLE WERNER

    IPC: C08G69/00 ,  C08G69/04 ,  C08G69/16 ,  C08G69/28

    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

    Inventor： DEININGER JUERGEN ,  DEMETER JUERGEN ,  KORY GAD ,  SOETJE OLIVER ,  WINTERLING HELMUT ,  ZEHNER PETER ,  HEEGER MICHAEL ,  GANN MARTIN ,  POLT AXEL ,  TREULING ULRICH ,  WEINLE WERNER

    IPC: C08G69/00 ,  C08G69/04 ,  C08G69/16 ,  C08G69/28

    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.

    6.
    发明专利
    未知

    公开(公告)号：DE502004001613D1

    公开(公告)日：2006-11-09

    申请号：DE502004001613

    申请日：2004-03-19

    Applicant: BASF AG

    Inventor： DEININGER JUERGEN ,  DEMETER JUERGEN ,  KORY GAD ,  SOETJE OLIVER ,  WINTERLING HELMUT ,  ZEHNER PETER ,  HEEGER MICHAEL ,  GANN MARTIN ,  POLT AXEL ,  TREULING ULRICH ,  WEINLE WERNER

    IPC: C08G69/00 ,  C08G69/04 ,  C08G69/16 ,  C08G69/28

    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.

    7.
    发明专利
    未知

    公开(公告)号：AT340819T

    公开(公告)日：2006-10-15

    申请号：AT04721865

    申请日：2004-03-19

    Applicant: BASF AG

    Inventor： DEININGER JUERGEN ,  DEMETER JUERGEN ,  KORY GAD ,  SOETJE OLIVER ,  WINTERLING HELMUT ,  ZEHNER PETER ,  HEEGER MICHAEL ,  GANN MARTIN ,  POLT AXEL ,  TREULING ULRICH ,  WEINLE WERNER

    IPC: C08G69/00 ,  C08G69/04 ,  C08G69/16 ,  C08G69/28

    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.

    METHOD FOR PRODUCING POLYAMIDES
    8.
    发明专利
    METHOD FOR PRODUCING POLYAMIDES 未知

    公开(公告)号：CA2519816A1

    公开(公告)日：2004-10-07

    申请号：CA2519816

    申请日：2004-03-19

    Applicant: BASF AG

    Inventor： DEMETER JURGEN ,  DEININGER JURGEN ,  WINTERLING HELMUT ,  HEEGER MICHAEL ,  ZEHNER PETER ,  GANN MARTIN ,  KORY GAD ,  SOTJE OLIVER ,  POLT AXEL ,  TREULING ULRICH ,  WEINLE WERNER

    IPC: C08G69/00 ,  C08G69/04 ,  C08G69/16 ,  C08G69/28

    Abstract: The invention relates to a method for producing polyamides, their oligomers or mixtures thereof, optionally containing other reaction products, by reacting aminonitriles or dinitriles and diamines or a mixture containing aminonitril e, dinitrile and diamine and optionally additional polyamide-forming monomers and/or oligomers with water in a reactor (1) with a vertical longitudinal axis. According to said method, the reaction product is exfiltrated from the sump in the reactor (1) and accumulated ammonia and optionally other accumulated low-molecular compounds and water are drawn off via the head (2) . The invention is characterised in that the reactor (1) comprises at least tw o chambers (4) arranged in a longitudinal direction one above the other, that the chambers (4) are separated from one another by liquid-tight floors (5), that each chamber (4) is connected to the one (4) immediately below by a respective liquid overflow (6) and a liquid product stream is drawn off via the liquid overflow (6) of the lowest chamber (4), that the gas chamber (7) above the liquid level in each chamber (4) is connected to the respective chamber (4) lying immediately above it via one or several conduits (8), whic h open respectively into a gas diffuser (9) comprising orifices (11) for the discharge of gas below the liquid level. The reactor also comprises at least one respective deflector plate (12) positioned vertically around each gas diffuser (9), the upper end of said plate terminating below the liquid level and the lower end terminating above the liquid-tight floor (5) of the chambe r (4), thus sub-dividing each chamber (4) into one or more compartments suppli ed with gas (13) and one or more compartments without gas (14).

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