Synthesis of aluminosilicates via cofeeding an alkali metal aluminate and sodium silicate and cofeeding apparatus therefor
    1.
    发明授权
    Synthesis of aluminosilicates via cofeeding an alkali metal aluminate and sodium silicate and cofeeding apparatus therefor 失效
    通过加入碱金属铝酸盐和硅酸钠及其共进料装置合成铝硅酸盐

    公开(公告)号:US06432380B1

    公开(公告)日:2002-08-13

    申请号:US09657830

    申请日:2000-09-08

    IPC分类号: C01B3902

    CPC分类号: C01B39/02

    摘要: Synthetic zeolite is produced by force feeding separate aqueous streams of sodium silicate and of an alkali metal aluminate into coaxial alignment with each other. The coaxially aligned solutions are then introduced into in an open space in coaxial fashion with one of the streams being injected from a nozzle. The open space constitutes a mixing zone in which the two streams come together and are thoroughly mixed to produce a precrystallized mixture. This mixture then passes in unimpeded fashion through an entrance port and into a crystallization reactor or vessel. The system used for conducting this operation thus serves the dual function of being a feeding system and a mixing system whereby the silicate and aluminate streams interact with each other before entering the crystallization reactor or zone. Intimate mixing is assured by virtue of the relatively small volume of the mixing zone and the higher velocity of the stream emanating from the nozzle.

    摘要翻译: 合成沸石通过将分离的硅酸钠和碱金属铝酸盐的水流强制供给彼此同轴对准而制备。 同轴对准的溶液然后以同轴的方式引入开放空间中,其中一个流从喷嘴注入。 开放空间构成混合区,其中两个物流在一起并被充分混合以产生预结晶的混合物。 然后,该混合物以无阻碍的方式通过入口进入结晶反应器或容器。 用于进行该操作的系统因此具有作为进料系统和混合系统的双重功能,由此硅酸盐和铝酸盐流在进入结晶反应器或区域之前相互作用。 通过混合区的相对较小的体积和从喷嘴发出的流的较高速度来确保紧密混合。

    High density zeolites and their production
    4.
    发明授权
    High density zeolites and their production 失效
    高密度沸石及其生产

    公开(公告)号:US06221835B1

    公开(公告)日:2001-04-24

    申请号:US09344467

    申请日:1999-06-25

    IPC分类号: C11D720

    摘要: Novel synthetic zeolite compositions of extremely small particle sizes that have increased loading capability, and process technology for producing such compositions are described. So far as is presently known, it has never been possible to form such compositions heretofore. The process technology involves, inter alia, contacting the zeolite cake formed in its production with a specified type of treating agent and then subjecting the treated zeolite to physical subdivision.

    摘要翻译: 描述了具有增加的负载能力的极小粒度的新型合成沸石组合物和用于生产这种组合物的工艺技术。 迄今为止,迄今为止从未有可能形成这样的组合物。 该工艺技术尤其涉及使其生产中形成的沸石饼与特定类型的处理剂接触,然后使经处理的沸石进行物理细分。