Process for the preparation of doped pentasil-type zeolites using a doped reactant
    2.
    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

    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。