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    34.
    发明专利
    未知

    公开(公告)号：DE50111871D1

    公开(公告)日：2007-02-22

    申请号：DE50111871

    申请日：2001-10-10

    Applicant: DEGUSSA

    Inventor： HAAS THOMAS ,  JAEGER BERND ,  SAUER JOERG ,  VANHEERTUM RUDOLF

    IPC: B01J23/46 ,  B01J35/10 ,  C07B61/00 ,  C07C29/141 ,  C07C31/20 ,  C07C209/72 ,  C07C211/17 ,  C07C211/36

    Abstract: A process for the catalytic hydrogenation of an organic compound, in particular a labile organic compound, in the presence of a support catalyst with a coating containing ruthenium as active metal and a total of 1.01 to 30 wt. % of active metals. Higher stereoselectivity and a greater catalyst shelf life may be obtained by using a support catalyst of which the oxide, carbide, nitride or siliceous support material has a BET (N2) surface area smaller than 10 m2/g, particularly preferably 0.1 to 5 m2/g, prior to loading with at least one active metal diatomaceous earth with a BET (N2) surface area greater than 2 m2/g is excluded and the ruthenium content thereof makes up at least 50 wt. %, preferably at least 99 wt. % of the active metals. The process and the catalysts are particularly suitable for the hydrogenation of polyfunctional compounds such as hydroxycarbonyl compounds and aromatic amines.

    36.
    发明专利
    未知

    公开(公告)号：DE60302773D1

    公开(公告)日：2006-01-19

    申请号：DE60302773

    申请日：2003-03-04

    Applicant: DEGUSSA

    Inventor： JAEGER BERND ,  HAAS THOMAS ,  GLENNEBERG JUERGEN ,  GRUNERT JUERGEN

    IPC: B01J23/96 ,  B01J35/02 ,  C01B15/023

    Abstract: Hydrogenation stage in anthraquinone process for hydrogen peroxide production also involving an oxidation stage in which anthraquinone derivative formed in hydrogenation stage is converted to H2O2 by reaction with oxygen-containing gas is effected in presence of added molecular oxygen under explosive conditions, the O2 being introduced in the form and an O2-containing gas. The hydrogenation stage in the anthraquinone process for hydrogen peroxide production also involving an oxidation stage in which the anthraquinone derivative formed in the hydrogenation stage is converted to H2O2 by reaction with an oxygen-containing gas (especially air) is effected in presence of added molecular oxygen at 0.02 mmol of O2 per mol H2 under explosive conditions, the O2 being introduced in the form and an O2-containing gas.

    PROCESS FOR THE PRODUCTION OF HYDROGEN PEROXIDE
    38.
    发明专利
    PROCESS FOR THE PRODUCTION OF HYDROGEN PEROXIDE 未知

    公开(公告)号：CA2445815A1

    公开(公告)日：2003-10-09

    申请号：CA2445815

    申请日：2003-03-04

    Applicant: DEGUSSA

    Inventor： JAEGER BERND ,  HAAS THOMAS ,  GRUNERT JUERGEN ,  GLENNEBERG JUERGEN

    IPC: B01J23/96 ,  B01J35/02 ,  C01B15/023

    Abstract: The invention relates to a process for the production of hydrogen peroxide b y the anthraquinone process, comprising a hydrogenation stage, an oxidation stage and an extraction stage. According to the invention, catalytic hydrogenation of anthraquinone derivatives dissolved in a working solution i s carried out in the presence of added molecular oxygen. Per mol hydrogen, 0.1 to 10 mmol oxygen is preferably introduced into the hydrogenation stage with the hydrogenating gas, in mixture with an inert gas and/or dissolved and/or dispersed in the working solution. This increases the residence time of the catalyst.

    METHOD FOR CATALYTICALLY HYDRATING ORGANIC COMPOUNDS AND SUPPORTED CATALYST USED IN SAID METHOD
    39.
    发明专利
    METHOD FOR CATALYTICALLY HYDRATING ORGANIC COMPOUNDS AND SUPPORTED CATALYST USED IN SAID METHOD 未知

    公开(公告)号：CA2427639A1

    公开(公告)日：2003-05-01

    申请号：CA2427639

    申请日：2001-10-12

    Applicant: DEGUSSA

    Inventor： HAAS THOMAS ,  JAEGER BERND ,  SAUER JORG ,  VANHEERTUM RUDOLF

    IPC: B01J23/46 ,  B01J35/10 ,  C07B61/00 ,  C07C29/141 ,  C07C31/20 ,  C07C209/72 ,  C07C211/17 ,  C07C211/36

    Abstract: The invention relates to a method for catalytically hydrating an organic compound, especially an unstable organic compound, in the presence of a supported catalyst that is provided with a coating that contains ruthenium as the active metal and a total of 0.01 to 30 % by weight of active metals. The aim of the invention is to increase stereoselectivity and catalyst service life. To this end, a supported catalyst is used whose oxide-, carbide-, nitride- or silicate-containing support material, prior to being charged with at least one active metal, has a BET(N2) surface of less than 10 m2/g, preferably 0.1 to 5 m2/g, with the exception of diatomaceous earth with a BET(N2) surface of greater 2 m2/g, and whose ruthenium content constitutes at least 50 % by weight, preferably at least 99 % by weight, of the active metals. The invention further relates to the aforementioned supported catalysts. The method and catalysts according to the invention are especially suitable for hydrating polyfunctional compounds such as hydroxycarbonyl compounds and aromatic amines.

    Procedimiento para la epoxidación de propeno
    40.
    发明专利
    Procedimiento para la epoxidación de propeno 未知

    公开(公告)号：ES2837144T3

    公开(公告)日：2021-06-29

    申请号：ES17709116

    申请日：2017-03-10

    Applicant: EVONIK DEGUSSA GMBH ,  THYSSENKRUPP IND SOLUTIONS AG

    Inventor： WÖLL WOLFGANG ,  BRENDEL MARC ,  JAEGER BERND ,  BREDEMEYER NIELS ,  KOLBE BÄRBEL ,  ULLRICH NORBERT ,  BERNHARD MAIK

    IPC: C07D301/12

    Abstract: Un procedimiento para la epoxidación de propeno al hacer reaccionar continuamente propeno con peróxido de hidrógeno en un disolvente metanólico y en presencia de un catalizador de silicalita de titanio conformado en un reactor de haz de tubos que comprende una multitud de tubos de reacción paralelos y una camisa de refrigeración que envuelve los tubos de reacción con el catalizador dispuesto como un lecho fijo en los tubos de reacción, estando la relación molar de propeno a peróxido de hidrógeno en el intervalo de 2,5:1 a 6:1 a carga completa del reactor, en donde durante la puesta en marcha de la reacción con un catalizador reciente o regenerado hasta que se alcanza la carga completa del reactor: se alimenta medio de refrigeración a la camisa de refrigeración a una velocidad constante para la carga completa del reactor, manteniéndose la temperatura de entrada del medio de refrigeración esencialmente constante a un valor en el intervalo de 20°C a 50°C; se alimenta disolvente metanólico a los tubos de reacción a una velocidad de alimentación de 50 a 100% de una velocidad de alimentación para la carga completa del reactor; se alimenta peróxido de hidrógeno a los tubos de reacción a una velocidad de alimentación que comienza con no más de 10% de una velocidad de alimentación para la carga completa del reactor y se incrementa continuamente o por etapas hasta la velocidad para la carga completa del reactor, incrementando la velocidad de alimentación para el peróxido de hidrógeno para mantener una temperatura máxima en el lecho fijo de no más de 60°C y una diferencia de temperatura entre la temperatura máxima en el lecho fijo y la temperatura de entrada del medio de refrigeración de no más de 20°C; y se alimenta propeno a los tubos de reacción a una velocidad de alimentación de 20 a 100% de una velocidad de alimentación para la carga completa del reactor, incrementando la velocidad de alimentación para el propeno cuando la relación molar de propeno a peróxido de hidrógeno alcance la relación molar para la carga completa del reactor.

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