СПОСІБ ОДЕРЖАННЯ ЦИКЛОГЕКСАНОНУ

    公开(公告)号:UA83597C2

    公开(公告)日:2008-07-25

    申请号:UAA200706285

    申请日:2005-11-30

    Abstract: Данийвинахідстосуєтьсяспособуодержанняциклогексанонуз циклогексану. Детальнішевінстосуєтьсяспособуодержанняциклогексанону, щомаєнизькийвмістзабруднень, якийдозволяєзастосуванняциклогексанонуяквихідногоматеріалудляодержання (-капролактаму. Спосібзавинаходомвключаєобробкусумішіциклогексанолу/циклогексанону, одержаноїшляхомокисленнякиснемциклогексанунастадіїдегідрогенізаціїдляперетворенняциклогексанолунациклогексанон. Спосібзавинаходомпридатнийдляодержанняциклогексанонуз високимступенемчистоти, суміснимз йогозастосуваннямяквихідногоматеріалудлясинтезу (-капролактаму.

    PROCEDE DE PREPARATION DE CYCLOHEXANONE

    公开(公告)号:FR2878847A1

    公开(公告)日:2006-06-09

    申请号:FR0412976

    申请日:2004-12-07

    Abstract: Elle concerne plus particulièrement un procédé de préparation de cyclohexanone présentant une teneur en impuretés permettant une utilisation de la cyclohexanone comme matière première pour la fabrication d'ε-caprolactame.Le procédé de l'invention comprend notamment un traitement du mélange cyclohexanol/cyclohexanone issu de l'oxydation par l'oxygène du cyclohexane dans une étape de déshydrogénation pour transformer le cyclohexanol en cyclohexanone et les impuretés présentes telles que le cyclopentènal. Le procédé de l'invention permet d'obtenir une cyclohexanone présentant un degré de pureté élevé, compatible pour son utilisation comme matière première dans la synthèse de l'ε-caprolactame.

    7.
    发明专利
    未知

    公开(公告)号:FR2882360B1

    公开(公告)日:2008-12-26

    申请号:FR0501761

    申请日:2005-02-22

    Inventor: LECONTE PHILIPPE

    Abstract: Synthesis of lactams from alkyl cyanovalerate comprises contacting alkylcyanovalerate in gaseous state with hydrogen in presence of hydrogenation and cyclization catalysts and treating the gaseous flow containing the formed lactam after condensation.

    8.
    发明专利
    未知

    公开(公告)号:FR2878848B1

    公开(公告)日:2007-01-05

    申请号:FR0412975

    申请日:2004-12-07

    Abstract: The present invention relates to a process for the manufacture of dinitrile compounds by double hydrocyanation of an olefin. It relates particularly to a process for the manufacture of dinitrile compounds by double hydrocyanation of an olefin present in a mixture of hydrocarbons, such as a petroleum fraction and more particularly still a petroleum fraction known under the name of C4 fraction. The process of the invention comprises a sequence of stages for the separation of the various compounds which makes it possible to remove the byproducts, such as the products from the trimerization of alkynes, present in the C4 fraction and thus to prevent their accumulation in the hydrocyanation reactors.

    PROCESS FOR THE MANUFACTURE OF LACTAMS

    公开(公告)号:SG159560A1

    公开(公告)日:2010-03-30

    申请号:SG2010010726

    申请日:2006-02-14

    Inventor: LECONTE PHILIPPE

    Abstract: The present invention relates to a process for the manufacture of lactams. It relates more particularly to a process for the manufacture of lactams from alkyl cyanovalerate compounds obtained by using, as starting materials, in particular unsaturated mononitrile compounds and more particularly pentenenitriles, such as 2-, 3- or 4-pentenenitrile, taken in isolation or as a mixture, and referred to below as PN for the mixture and 2PN, 3PN and 4PN respectively. This process consists in carrying out the hydrogenation and the cyclization of the alkyl cyanovalerate to give s-caprolactam without intermediate separation of the alkyl aminocaproate.

    10.
    发明专利
    未知

    公开(公告)号:BRPI0607996A2

    公开(公告)日:2009-10-27

    申请号:BRPI0607996

    申请日:2006-02-14

    Inventor: LECONTE PHILIPPE

    Abstract: Synthesis of lactams from alkyl cyanovalerate comprises contacting alkylcyanovalerate in gaseous state with hydrogen in presence of hydrogenation and cyclization catalysts and treating the gaseous flow containing the formed lactam after condensation.

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