processo para oxidação parcial em fase gasosa heterogeneamente catalisada

    公开(公告)号:BRPI0620948B1

    公开(公告)日:2016-03-01

    申请号:BRPI0620948

    申请日:2006-12-21

    Applicant: BASF SE

    Abstract: processo para oxidação parcial em fase gasosa fieterogeneamente catalisada. um processo para oxidação parcial em fase gasosa heterogeneamente catalisada, de um composto de partida orgânico, sobre um leito de catalisador fixo recém-instalado em uma câmara de reação, em que a redução da qualidade do leito de catalisador fixo é restaurada com o aumento do tempo de operação, mediante substituição de parte do leito de catalisador fixo por um leito de catalisador fixo parcial de substituição cuja atividade específica do voluma seja menor do que a atividade específica do volume do leito de catalisador fixo parcial substituído em seu estado recém-instalado.

    14.
    发明专利
    未知

    公开(公告)号:BRPI0807659A2

    公开(公告)日:2014-06-10

    申请号:BRPI0807659

    申请日:2008-02-28

    Applicant: BASF SE

    Abstract: Preparation of a catalyst consisting of a carrier body and a catalytic active mass, which is applied on the surface of the carrier body, comprises attaching one of the active mass to the surface of the carrier body with the help of a binding agent, where the active mass is a finely divided mixture of: at least an element of molybdenum and vanadium containing finely divided multielement oxides; and at least a finely divided substance comprising oxide of molybdenum or its compound, which forms its oxide under the effect of increased temperature and molecular oxygen. An independent claim is included for a catalyst, obtained by the above process.

    16.
    发明专利
    未知

    公开(公告)号:DE102008042064A1

    公开(公告)日:2010-03-18

    申请号:DE102008042064

    申请日:2008-09-12

    Applicant: BASF SE

    Abstract: A process for producing geometric shaped catalyst bodies K whose active material is a multielement oxide of stoichiometry [Bi1WbOx]a[Mo12Z1cZ2dFeeZ3fZ4gZ5hOy]1, in which a finely divided oxide Bi1WbOx with the particle size d50A1 and, formed from element sources, a finely divided intimate mixture of stoichiometry Mo12Z1cZ2dFeeZ3fZ4gZ5h with the particle size d90A2 are mixed in a ratio of a:1, this mixture is used to form shaped bodies and these are treated thermally, where (d50A1)0.7·(d90A2)1.5·(a)−1≧820. A shaped catalyst body obtained by the process. A catalyst obtained by grinding the shaped catalyst body. A process for heterogeneously catalyzing the partial gas phase oxidation of an alkane, alkanol, alkanal and/or an alkenal of 3 to 6 carbon atoms using the catalyst.

    17.
    发明专利
    未知

    公开(公告)号:BRPI0806241A2

    公开(公告)日:2011-09-06

    申请号:BRPI0806241

    申请日:2008-01-14

    Applicant: BASF SE

    Abstract: A process for preparing a multielement oxide composition comprising the element iron in oxidic form, in which the source of the elemental constituent of iron used is an aqueous iron nitrate solution whose preparation comprises the melting of a solid hydrate of iron nitrate.

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