Enhanced crystal acidity exechange method
    7.
    发明申请
    Enhanced crystal acidity exechange method 失效
    增强晶体酸度测试方法

    公开(公告)号:US20060122053A1

    公开(公告)日:2006-06-08

    申请号:US11258440

    申请日:2005-10-25

    IPC分类号: B01J29/06

    CPC分类号: B01J29/40 B01J2229/42

    摘要: The present invention describes a method to increase the activity of a catalyst by first performing an ion exchange step with a potassium ion, followed by performing an ion-exchange step with an ammonium ion. Specifically, the present invention describes a method to increase the acidity of a zeolite by incorporating a potassium salt ion-exchange prior to an ammonium salt ion-exchange step. Even more specifically, the present invention is drawn to a method of increasing the activity of a zeolite by employing more than one potassium ion exchanges followed by at least one ammonium ion exchange. The present invention also describes a method to reduce the amount of sodium normally found in commercially produced zeolite by employing any of these methods. The present invention is also drawn to the catalysts produced by any of these methods.

    摘要翻译: 本发明描述了通过首先用钾离子进行离子交换步骤,然后用铵离子进行离子交换步骤来提高催化剂活性的方法。 具体地,本发明描述了通过在铵盐离子交换步骤之前引入钾盐离子交换来提高沸石的酸度的方法。 更具体地说,本发明涉及通过使用多于一种的钾离子交换,然后进行至少一种铵离子交换来提高沸石的活性的方法。 本发明还描述了一种通过使用任何这些方法来减少通常在商业生产的沸石中发现的钠的量的方法。 本发明还涉及通过任何这些方法制备的催化剂。

    Noble metal alloy formation method to improve stability
    8.
    发明申请
    Noble metal alloy formation method to improve stability 审中-公开
    贵金属合金成型方法提高稳定性

    公开(公告)号:US20060229198A1

    公开(公告)日:2006-10-12

    申请号:US11388807

    申请日:2006-03-24

    IPC分类号: B01J23/40

    摘要: The present invention is a method to form a noble metal catalyst including two noble metals alloy on a catalyst support. The steps include impregnating a first noble metal onto said catalyst support, and thereafter impregnating a second noble metal onto said catalyst support. In a preferred embodiment, the first noble metal is palladium and the second noble metal is platinum.

    摘要翻译: 本发明是一种在催化剂载体上形成包含贵金属合金的贵金属催化剂的方法。 步骤包括将第一贵金属浸渍到所述催化剂载体上,然后将第二贵金属浸渍到所述催化剂载体上。 在优选的实施方案中,第一贵金属是钯,第二贵金属是铂。