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34 条记录 (耗时 0.012 秒)

    ATTRITION RESISTANT, SHAPED, CRYSTALLINE Mg-Al-Si-CONTAINING CLAY-CONTAINING BODIES
    21.
    发明授权
    ATTRITION RESISTANT, SHAPED, CRYSTALLINE Mg-Al-Si-CONTAINING CLAY-CONTAINING BODIES 有权
    耐磨，成形，结晶含Mg-Al-Si的含粘土物体

    公开(公告)号：EP1204474B1

    公开(公告)日：2005-03-16

    申请号：EP00956420.4

    申请日：2000-08-11

    申请人： Akzo Nobel N.V.

    发明人： STAMIRES, Dennis ,  O'CONNER, Paul ,  JONES, William

    IPC分类号： B01J21/16 ,  B01J37/00 ,  C04B33/00

    CPC分类号： B01J37/0009 ,  B01J21/16 ,  B01J23/007 ,  C01B33/40

    摘要： The present invention is directed to a process for the preparation of crystalline Mg-Al-Si-containing clay-containing bodies from sources comprising an aluminium source, a magnesium source, and a silicon source, comprising the steps of: a) preparing a precursor mixture; b) shaping the precursor mixture to obtain shaped bodies; c) optionally thermally treating the shaped bodies; and d) aging to obtain crystalline Mg-Al-Si-containing clay-containing bodies. The quintessence of the present invention is that the bodies are shaped prior to the forming of the crystalline clay in said bodies. This results in very attrition resistant bodies, without the need to add a binder material. The crystalline clay is formed from an aluminium source, a magnesium source, and, a silicon source. If only an aluminium source and a magnesium source are present, hydrotalcite is formed. If an aluminium source, a magnesium source, and a silicon source are present, saponite or montmorillonite is formed.

    摘要翻译： 本发明涉及一种从包含铝源，镁源和硅源的来源制备含结晶Mg-Al-Si的含粘土体的方法，包括以下步骤：a）制备前体 混合物; b）使前体混合物成形以获得成形体; c）任选地热处理成形体; 和d）老化以获得含结晶Mg-Al-Si的含粘土体。 本发明的精髓在于，在所述物体中形成结晶粘土之前，所述物体被成形。 这导致非常耐磨的物体，而不需要添加粘合剂材料。 结晶粘土由铝源，镁源和硅源形成。 如果仅存在铝源和镁源，则形成水滑石。 如果存在铝源，镁源和硅源，则形成皂石或蒙脱石。

    PROCESS FOR THE PREPARATION OF QUASI-CRYSTALLINE BOEHMITES
    22.
    发明授权
    PROCESS FOR THE PREPARATION OF QUASI-CRYSTALLINE BOEHMITES 无效
    用于生产准勃姆石

    公开(公告)号：EP1200350B1

    公开(公告)日：2004-10-27

    申请号：EP00960436.4

    申请日：2000-08-11

    申请人： Akzo Nobel N.V.

    发明人： STAMIRES, Dennis ,  O'CONNER, Paul ,  PEARSON, Gregory ,  JONES, William

    IPC分类号： C01F7/34

    CPC分类号： C01F7/448 ,  B01J21/04 ,  C01F7/34 ,  C01F7/36 ,  C01P2002/04 ,  C01P2002/72

    摘要： The present invention pertains to an improved process for the preparation of quasi-crystalline boehmite. In this improved process a quasi-crystalline boehmite precursor is aged at a pH below 7, preferably under hydrothermal conditions. It was found that when conducting the preparation processes for quasi-crystalline aluminas described in the prior art at a pH below 7 and under hydrothermal conditions instead of the high pH and thermal ageing used in the prior art, QCBs with higher crystallinity are obtained. In the process according to the invention additives may be added to the quasi-crystalline boehmite precursor. This results in a high quality QCB with additives in a homogeneously dispersed state. Suitable additives are compounds containing elements selected from the group of rare earth metals, alkaline earth metals, transition metals, actinides, silicon, gallium, boron, and phosphorus.

    ATTRITION RESISTANT, SHAPED, CRYSTALLINE Mg-Al-Si-CONTAINING CLAY-CONTAINING BODIES
    24.
    发明公开
    ATTRITION RESISTANT, SHAPED, CRYSTALLINE Mg-Al-Si-CONTAINING CLAY-CONTAINING BODIES 有权
    穿紧身KRISTA LINE MG-AL-SI AMUSING，TONHALTENDE成型

    公开(公告)号：EP1204474A1

    公开(公告)日：2002-05-15

    申请号：EP00956420.4

    申请日：2000-08-11

    申请人： Akzo Nobel N.V.

    发明人： STAMIRES, Dennis ,  O'CONNER, Paul ,  JONES, William

    IPC分类号： B01J21/16 ,  B01J37/00 ,  C04B33/00

    CPC分类号： B01J37/0009 ,  B01J21/16 ,  B01J23/007 ,  C01B33/40

    摘要： The present invention is directed to a process for the preparation of crystalline Mg-Al-Si-containing clay-containing bodies from sources comprising an aluminium source, a magnesium source, and a silicon source, comprising the steps of: a) preparing a precursor mixture; b) shaping the precursor mixture to obtain shaped bodies; c) optionally thermally treating the shaped bodies; and d) aging to obtain crystalline Mg-Al-Si-containing clay-containing bodies. The quintessence of the present invention is that the bodies are shaped prior to the forming of the crystalline clay in said bodies. This results in very attrition resistant bodies, without the need to add a binder material. The crystalline clay is formed from an aluminium source, a magnesium source, and, a silicon source. If only an aluminium source and a magnesium source are present, hydrotalcite is formed. If an aluminium source, a magnesium source, and a silicon source are present, saponite or montmorillonite is formed.

    PROCESS FOR PRODUCING ANIONIC CLAYS USING MAGNESIUM ACETATE
    26.
    发明公开
    PROCESS FOR PRODUCING ANIONIC CLAYS USING MAGNESIUM ACETATE 有权
    用于生产阴离子粘土使用乙酸镁

    公开(公告)号：EP1053210A1

    公开(公告)日：2000-11-22

    申请号：EP99910223.9

    申请日：1999-02-11

    申请人： Akzo Nobel N.V.

    发明人： STAMIRES, Dennis ,  BRADY, Mike ,  JONES, William ,  KOOLI, Fathi

    IPC分类号： C01F7/00

    CPC分类号： C01F7/005 ,  C01P2002/22 ,  C01P2002/50 ,  C01P2002/72

    摘要： This patent describes economical and environment-friendly processes for the synthesis of anionic clays and anionic clay-like materials with acetate anions as the charge-balancing interlayer species. It involves combining a slurry of a gibbsite or its thermally treated form with a slurry or solution of a magnesium source and magnesium acetate. The product is not washed, needs no filtration and exists in a close to neutral pH condition. It can be spray dried directly to form microspheres or can be extruded to form shaped bodies. Because of the absence of foreign salts the product can be combined with other ingredients in the manufacture of catalysts, absorbents, pharmaceuticals, cosmetics, detergents, and other commodity products that contain anionic clays.