56.
    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

    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.

    57.
    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

    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 ALDEHYDES AND/OR ALCOHOLS OR AMINES

    公开(公告)号:MY124357A

    公开(公告)日:2006-06-30

    申请号:MYPI9903495

    申请日:1999-08-14

    Applicant: BASF AG

    Abstract: A PROCESS FOR THE PREPARATION OF ALDEHYDES AND/OR ALCOHOLS OR AMINES BY REACTING OLEFINS IN THE LIQUID PHASE WITH CARBON MONOXIDE AND HYDROGEN,A PART OF THESE GASES BEING DISPERSED IN THE FORM OF GAS BUBBLES IN THE REACTION LIQUID AND ANOTHER PART BEING DISSOLVED IN THE REACTION LIQUID, IN THE PRESENCE OR ABSENCE OF A PRIMARY OR SECONDARY AMINE AND IN THE PRESENCE OF A COBALT CARBONYL, RHODIUM CARBONYL, PALLADIUM CARBONYL OR RUTHENIUM CARBONYL COMPLEX DISSOLVED HOMOGENEOUSLY IN THE REACTION LIQUID AND HAVING A PHOSPHORUS-, ARSENIC-, ANTIMONY-OR NITROGEN-CONTAINING LIGAND, AT ELEVATED TEMPERATURES AND AT 0.1 TO 10 MPA (1 TO 100 BAR), WHEREIN THE REACTION IS CARRIED OUT IN A VERTICALLY ARRANGED, TUBULAR REACTOR (1) COMPRISING A REACTOR BODY (2) AND AT LEAST ONE CIRCULATION LINE (3), A PART OF THE REACTION LIQUID IS FED CONTINUOUSLY VIA THE CIRCULATION LINE (3) TO AT LEAST ONE NOZZLE (5) WHICH IS MOUNTED IN THE UPPER PART OF THE REACTOR BODY AND IS COORDINATED WITH A GUIDE MEMBER (6), OPEN AT THE TOP AND BOTTOM AND BOUNDED BY PARALLEL WALLS, IN THE INTELIOR OF THE REACTOR AND WITH A BAFFLE (7) PRESENT BELOW THE LOWER OPENING OF THE GUIDE MEMBER (6), AND A DOWNWARD-DIRECTED LIQUID STREAM CONTAINING DISPERSED GAS BUBBLES IS PRODUCED BY MEANS OF THIS NOZZLE (5) IN THIS GUIDE MEMBER (6) AND, AFTER LEAVING THE GUIDE MEMBER (6), IS DEFLECTED INTO A STREAM FLOWING UPWARD IN THE SPACE BETWEEN THE WALL OF THE GUIDE MEMBER (6) AND THE WALL OF THE REACTOR BODY (2) AND IS SUCKED INTO THE GUIDE MEMBER (6) AT THE UPPER END OF THE GUIDE MEMBER (6) BY THE JET OF THE NOZZLE (5) COORDINATED WITH THE GUIDE MEMBER (6).(FIGURE 1)

    59.
    发明专利
    未知

    公开(公告)号:MX234328B

    公开(公告)日:2006-02-13

    申请号:MXPA03011309

    申请日:2002-06-21

    Applicant: BASF AG

    Abstract: The invention relates to a process for preparing N-phosphono-methylglycine by reacting a hexahydrotriazine compound with a triacyl phosphite in an organic solvent, hydrolyzing the resulting phosphono compound after prior extraction into an aqueous phase and separation from the organic phase. The process avoids decomposition of the organic solvent during hydrolysis.

    60.
    发明专利
    未知

    公开(公告)号:BR0308912A

    公开(公告)日:2005-01-04

    申请号:BR0308912

    申请日:2003-04-15

    Applicant: BASF AG

    Abstract: The invention relates to a process for the preparation of methyl formate by reacting methanol with carbon monoxide at a pressure of from 0.5 to 10 MPa abs. and a temperature of from 50 to 150° C. in the presence of a metal alkoxide as catalyst in a reactor, in which a gas stream is withdrawn from the reactor, entrained methyl formate is removed from this gas stream by condensation, and all or some of the remaining gas stream is returned to the reactor as circulating-gas stream and a mean gas superficial velocity of from 1 to 20 cm/s is set in at least one region of the reactor in which the gas flows essentially in one direction.

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