22.
    发明专利
    未知

    公开(公告)号:AT546224T

    公开(公告)日:2012-03-15

    申请号:AT08750014

    申请日:2008-05-05

    Applicant: BASF SE

    Abstract: The invention relates to a process for preparing aromatic amines by catalytic hydrogenation of the corresponding nitro compounds, in particular for preparing toluenediamine by hydrogenation of dinitrotoluene, wherein hydrogenation catalysts in which a mixture of nickel, palladium and an additional element selected from the group consisting of cobalt, iron, vanadium, manganese, chromium, platinum, iridium, gold, bismuth, molybdenum, selenium, tellurium, tin and antimony is present as active component on a support are used.

    27.
    发明专利
    未知

    公开(公告)号:AT550317T

    公开(公告)日:2012-04-15

    申请号:AT09781542

    申请日:2009-08-06

    Applicant: BASF SE

    Abstract: The invention relates to a process for preparing isocyanates by reacting the corresponding amines with phosgene in the liquid phase, if appropriate in the presence of at least one inert medium, in which the amine and the phosgene are first mixed in a mixing chamber (1) to give a reaction mixture and the reaction mixture is fed to a reactor, the amine being added through an orifice (3) arranged coaxially to the mixing chamber (1) and the phosgene being added through feed orifices (5) in at least two planes (7, 9) arranged at right angles to the axis (11) of the mixing chamber (1), or the phosgene being added through the orifice (3) arranged coaxially to the mixing chamber and the amine through the feed orifices (5) in at least two planes (7, 9) arranged at right angles to the axis (11) of the mixing chamber (1). At least one plane (9) is arranged upstream and at least one plane (7) downstream of the orifice (3) arranged coaxially to the mixing chamber (1) in main flow direction of the reaction mixture. The mean residence time of the reaction mixture in the mixing chamber (1) is not more than 20 ms.

    AMINACION DIRECTA DE HIDROCARBUROS.

    公开(公告)号:ES2370853T3

    公开(公告)日:2011-12-23

    申请号:ES07704599

    申请日:2007-02-15

    Applicant: BASF SE

    Abstract: Procedimiento para la aminación de hidrocarburos con amoníaco en presencia de un catalizador (i), que cataliza la aminación, en donde los hidrocarburos pueden ser cualquier tipo de hidrocarburos, como hidrocarburos aromáticos, hidrocarburos alifáticos e hidrocarburos cicloalifáticos, sustituidos indistintamente y que pueden presentar dentro de su cadena o anillo o anillos heteroátomos y enlaces dobles o triples, caracterizado porque en una primera cámara de reacción se convierten los hidrocarburos con amoníaco en presencia del catalizador (i), luego se agrega el oxidante a la mezcla de reacción y en una cámara de reacción posterior se convierte el oxidante con el hidrógeno obtenido en la aminación, en presencia del catalizador (ii), que cataliza dicha conversión con hidrógeno, en donde durante o tras la oxidación de hidrógeno se convierte el hidrocarburo con amoníaco en presencia del catalizador (i).

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