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14 条记录 (耗时 0.016 秒)

    Process for the preparation of doped pentasil-type zeolites using a doped reactant
    1.
    发明授权
    Process for the preparation of doped pentasil-type zeolites using a doped reactant 有权
    使用掺杂的反应物制备掺杂的pentasil型沸石的方法

    公开(公告)号：US06969692B2

    公开(公告)日：2005-11-29

    申请号：US10647632

    申请日：2003-08-25

    申请人： Mike Brady ,  Erik Jeroen Laheij ,  Paul O'Connor ,  Dennis Stamires

    发明人： Mike Brady ,  Erik Jeroen Laheij ,  Paul O'Connor ,  Dennis Stamires

    IPC分类号： B01J29/04 ,  B01J29/40 ,  C01B39/06 ,  B01J29/06

    CPC分类号： B01J29/04 ,  B01J29/405 ,  C01B39/06 ,  C01B39/065

    摘要： A process for the preparation of a metal-doped pentasil-type zeolite comprising the steps of: a) preparing an aqueous precursor mixture comprising a silicon source and an aluminum source, at least one of these sources being doped with a rare earth metal or a transition metal of Groups Vb–VIIIb, Ib, or IIb of the Periodic System, and b) thermally treating the precursor mixture to form a metal-doped pentasil-type zeolite. With this process, metal-doped pentasil-type zeolites can be prepared while the risk of precipitation of the dopant as a separate phase is minimized.

    摘要翻译： 一种制备金属掺杂的pentasil型沸石的方法，包括以下步骤：a）制备包含硅源和铝源的水性前体混合物，这些源中的至少一个掺杂有稀土金属或 元素周期系Vb-VIIIb族，Ib族或IIb族的过渡金属，和b）热处理前体混合物以形成金属掺杂的pentasil型沸石。 通过该方法，可以制备金属掺杂的pentasil型沸石，同时使作为分离相的掺杂剂的沉淀的风险最小化。

    Process for the preparation of catalyst microspheres
    7.
    发明授权
    Process for the preparation of catalyst microspheres 失效
    催化剂微球的制备方法

    公开(公告)号：US07160830B2

    公开(公告)日：2007-01-09

    申请号：US10731917

    申请日：2003-12-10

    申请人： Monique Van Der Zon ,  Erik Jeroen Laheij ,  Paul O'Connor

    发明人： Monique Van Der Zon ,  Erik Jeroen Laheij ,  Paul O'Connor

    IPC分类号： B01J35/08

    CPC分类号： B01J37/0063 ,  B01J29/06 ,  B01J29/084 ,  B01J35/023 ,  B01J2229/42

    摘要： The present invention relates to a process for the preparation of catalyst particles with a particle diameter in the range 20–2000 microns involving the steps of agitating at least two dry catalyst ingredients, spraying a liquid binding agent on the catalyst ingredients while continuing the agitation, and isolating formed catalyst particles with the desired particle diameter and comprising the catalyst ingredients. In contrast to the conventional way of preparing such particles, spray-drying, the present process allows the formation of small particles from slurries with a high solids content. Hence, smaller amounts of liquid have to be evaporated, which makes the process energy efficient.

    摘要翻译： 本发明涉及一种制备粒径在20-2000微米范围内的催化剂颗粒的方法，包括搅拌至少两种干燥催化剂成分的步骤，在继续搅拌下将液体粘合剂喷洒在催化剂成分上， 并分离具有所需粒径的形成的催化剂颗粒并且包含催化剂成分。 与制备这种颗粒的常规方法相反，喷雾干燥，本方法允许从固体含量高的浆料形成小颗粒。 因此，必须蒸发较少量的液体，这使得工艺能量效率高。

    Process for the preparation of doped pentasil-type zeolite using doped seeds
    10.
    发明授权
    Process for the preparation of doped pentasil-type zeolite using doped seeds 有权
    使用掺杂种子制备掺杂的pentasil型沸石的方法

    公开(公告)号：US06964934B2

    公开(公告)日：2005-11-15

    申请号：US10647854

    申请日：2003-08-25

    申请人： Mike Brady ,  Erik Jeroen Laheij ,  Paul O'Connor ,  Dennis Stamires

    发明人： Mike Brady ,  Erik Jeroen Laheij ,  Paul O'Connor ,  Dennis Stamires

    IPC分类号： B01J29/40 ,  C01B39/36 ,  C01B39/38 ,  C01B39/40 ,  B01J29/06

    CPC分类号： B01J29/405 ,  B01J2229/62 ,  C01B39/36 ,  C01B39/38 ,  C01B39/40

    摘要： The present invention relates to a process for the preparation of doped pentasil-type zeolite, which process comprises the steps of: a) preparing an aqueous precursor mixture from a silicon source, an aluminium source, and doped non-zeolitic seeds; and b) thermally treating the precursor mixture to form a doped pentasil-type zeolite. The term “non-zeolitic seeds” includes seeds made from materials selected from the group consisting of (i) X-ray amorphous materials, (ii) milled crystalline materials, such as milled zeolites, that have a relative crystallinity of not more than 75%, and (iii) crystalline materials other than zeolites, such as clays (e,g, bentonite and kaolin) and (low) crystalline aluminas.

    摘要翻译： 本发明涉及一种制备掺杂的pentasil型沸石的方法，该方法包括以下步骤：a）从硅源，铝源和掺杂的非沸石种子制备水性前体混合物; 和b）热处理前体混合物以形成掺杂的pentasil型沸石。 术语“非沸石种子”包括由选自以下的材料制成的种子：（i）X射线无定形材料，（ii）研磨的结晶材料，例如研磨的沸石，其相对结晶度不大于75 ％，和（iii）沸石以外的结晶材料，例如粘土（e，g，膨润土和高岭土）和（低）结晶氧化铝。