利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

21 条记录 (耗时 0.025 秒)

    Method for the separation of zeolites
    5.
    发明授权
    Method for the separation of zeolites 有权
    沸石分离方法

    公开(公告)号：US06924247B2

    公开(公告)日：2005-08-02

    申请号：US10014853

    申请日：2001-12-14

    申请人： Angela Carati ,  Giannino Pazzuconi ,  Carlo Perego ,  Oscar Cappellazzo ,  Gianni Girotti

    发明人： Angela Carati ,  Giannino Pazzuconi ,  Carlo Perego ,  Oscar Cappellazzo ,  Gianni Girotti

    IPC分类号： B01J20/18 ,  B01J20/30 ,  B01J29/70 ,  C01B39/02 ,  B01J29/06

    CPC分类号： B01J29/06 ,  B01J29/7007 ,  B01J29/7034 ,  C01B39/026

    摘要： The object of the present invention relates to a simple, rapid and inexpensive process for effecting solid-liquid separations in the case of zeolites, also having small crystals. This process, which is particularly useful for the recovery of zeolite crystals in suspension in the crystallization water, comprises treating this suspension of crystals with an acid or one of its precursors and subjecting the resulting mixture to filtration or decanting.According to a particular aspect of the invention, the crystalline phase is separated in a mixture with oxides which can be used as ligands. Said oxides can be generated by the reagents of the zeolite preparation reagent mixture, not transformed into crystalline phase during the synthesis hydrothermal treatment, or they can be added to the suspension of crystals before the separation treatment, or again they can be generated by precursors suitably added to the crystallization slurry.

    摘要翻译： 本发明的目的涉及在具有小晶体的沸石的情况下实现固液分离的简单，快速和便宜的方法。 对于在结晶水中悬浮的沸石晶体的回收特别有用的该方法包括用酸或其前体之一处理该晶体悬浮液，并将所得混合物过滤或倾析。 根据本发明的特定方面，结晶相与可用作配体的氧化物以混合物分离。 所述氧化物可以通过沸石制备试剂混合物的试剂产生，在合成水热处理期间不转化为结晶相，或者可以在分离处理之前加入到晶体悬浮液中，或者再次由前体合成生成 加入到结晶浆料中。

    Process for the production of 2,6-dimethylnaphthalene
    6.
    发明授权
    Process for the production of 2,6-dimethylnaphthalene 有权
    生产2,6-二甲基萘的方法

    公开(公告)号：US07812204B2

    公开(公告)日：2010-10-12

    申请号：US11576412

    申请日：2005-11-30

    申请人： Gianni Girotti ,  Franco Rivetti ,  Renzo Bignazzi

    发明人： Gianni Girotti ,  Franco Rivetti ,  Renzo Bignazzi

    IPC分类号： C07C5/27 ,  C07C6/12 ,  C07C2/64

    CPC分类号： C07C5/2737 ,  C07C6/12 ,  C07C6/126 ,  C07C2529/70 ,  Y02P20/582 ,  C07C15/24

    摘要： The invention relates to a multi-step chemical transformation process for the production of 2,6-dimethylnaphthalene starting from one or more naphthalene hydrocarbons or hydrocarbon blends containing the same, one or more benzene hydrocarbons and, optionally, a methylating agent reacted in the presence of a catalyst containing a zeolite belonging to the MTW structural group, where hydrogen is fed in at least one of the steps.

    摘要翻译： 本发明涉及从一种或多种萘烃或含有它们的烃共混物，一种或多种苯烃和任选的甲基化剂在存在下反应的生产2,6-二甲基萘的多步化学转化方法 的含有属于MTW结构基团的沸石的催化剂，其中在至少一个步骤中进料氢。

    Process for the Production of 2,6-Dimethylnaphthalene
    7.
    发明申请
    Process for the Production of 2,6-Dimethylnaphthalene 有权
    2,6-二甲基萘的制备方法

    公开(公告)号：US20070265480A1

    公开(公告)日：2007-11-15

    申请号：US11576412

    申请日：2005-11-30

    申请人： Gianni Girotti ,  Franco Rivetti ,  Renzo Bignazzi

    发明人： Gianni Girotti ,  Franco Rivetti ,  Renzo Bignazzi

    IPC分类号： C07C15/24

    CPC分类号： C07C5/2737 ,  C07C6/12 ,  C07C6/126 ,  C07C2529/70 ,  Y02P20/582 ,  C07C15/24

    摘要： The invention relates to a multi-step chemical transformation process for the production of 2,6-dimethylnaphthalene starting from one or more naphthalene hydrocarbons or hydrocarbon blends containing the same, one or more benzene hydrocarbons and, optionally, a methylating agent reacted in the presence of a catalyst containing a zeolite belonging to the MTW structural group, where hydrogen is fed in at least one of the steps.

    摘要翻译： 本发明涉及从一种或多种萘烃或含有它们的烃共混物，一种或多种苯烃和任选的甲基化剂在存在下反应的生产2,6-二甲基萘的多步化学转化方法 的含有属于MTW结构基团的沸石的催化剂，其中在至少一个步骤中进料氢。