NUEVO DESCUBRIMIENTO IN SITU DE LECHOS DE CATALIZADOR.

    公开(公告)号:ES2367115T3

    公开(公告)日:2011-10-28

    申请号:ES04725311

    申请日:2004-04-02

    Applicant: BASF SE

    Abstract: Procedimiento para el recubrimiento de piezas internas en un reactor, excepto el recubrimiento de espumas que pueden calentarse eléctricamente, al menos parcialmente de células abiertas, con un material catalíticamente activo o un precursor del mismo, según el cual se proporciona un aerosol, que contiene como fase dispersa el material catalíticamente activo o el precursor del mismo, en el que la fase dispersa del aerosol presenta un tamaño de partícula en el intervalo de desde 0,1 hasta 10 µm y se conduce el aerosol con una velocidad en el intervalo de desde 0,2 hasta 4 m/s a través del reactor, que se ajusta de modo que la fase dispersa del aerosol se deposita sobre las piezas internas en el reactor.

    23.
    发明专利
    未知

    公开(公告)号:AT516080T

    公开(公告)日:2011-07-15

    申请号:AT04725311

    申请日:2004-04-02

    Applicant: BASF SE

    Abstract: A process for coating internals in a reactor, except for the coating of electrically heatable, at least partly open-cell foams, with a catalytically active material or a precursor thereof, in which an aerosol which contains the catalytically active material or the precursor thereof as a disperse phase is provided and the aerosol is passed through the reactor at a rate in the range from 0.1 to 4 m/s, which is established so that the disperse phase of the aerosol is deposited on the internals in the reactor.

    25.
    发明专利
    未知

    公开(公告)号:AT479021T

    公开(公告)日:2010-09-15

    申请号:AT02748736

    申请日:2002-06-05

    Applicant: BASF SE

    Abstract: The invention relates to a pump ( 1 ) having a pump guide tube ( 13 ) for the transport of a heat-exchange medium ( 6 ) for a reactor having a bundle of catalyst tubes ( 2 ), where the pump ( 1 ) has a casing ( 14 ) which surrounds the pump guide tube ( 13 ), having an aperture ( 15 ) in the lower part of the casing ( 14 ) via which the heat-exchange medium ( 6 ) discharged from the lower region of the reactor by means of the pump ( 1 ) flows into the casing ( 14 ), flows upward in the region between the inner wall of the casing ( 14 ) and the outer wall of the pump guide tube ( 13 ), if desired via a heat exchanger ( 18 ), flows into the interior of the pump guide tube ( 13 ) via an aperture ( 16 ) in the upper region of the pump guide tube ( 13 ), flows through the pump guide tube ( 13 ) from top to bottom and flows via an aperture ( 17 ) in the lower region of the pump guide tube ( 13 ) into the reactor, into the upper region of the interspace between the catalyst tubes ( 2 ).

    processo para preparar isocianatos aromáticos.

    公开(公告)号:BR112012013069A2

    公开(公告)日:2016-11-22

    申请号:BR112012013069

    申请日:2010-12-03

    Applicant: BASF SE

    Abstract: processo para preparar isocianatos aromáticos - a invenção refere-se a um processo para produzir isianatos aromáticos pela reação de formamidas corresppondentes com um gás contendo oxigênio sobre catalisadores de metais nobres em tempeturas de 300 c a 600 c e um tempo de contato de 1 ms a 1.000 ms, caracterizado pelo fato de compreender as etapas de: a. evaporar a formamida antes de entrar na zona de reação, b. inativar a mistura reacional assim obtida com um líquido de extinção contendo álcool, e c. dissociar o uretano assim formado em isocianato e álcool.

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