Methods for preparing shaped sorbent
    1.
    发明公开
    Methods for preparing shaped sorbent 审中-公开
    Verfahren zur Herstellung eines吸附Formkörpers

    公开(公告)号:EP1199101A2

    公开(公告)日:2002-04-24

    申请号:EP01308513.9

    申请日:2001-10-04

    摘要: An improved method for preparing various sorbent shapes such as beads for use in gas separation processes is disclosed. Highly siliceous nanoporous materials in their crystalline powder form are stabilized by thermal pretreatment prior to their contact with a mineral binder. The resulting sorbent shapes maintain their crystalline structure particularly when the pH value of the mineral binder in its aqueous suspension is greater than 10. The sorbent beads that result from this process, are especially suitable for the separation of gaseous low-molecular-weight hydrocarbons such as paraffins, olefins, and their mixtures from carbon dioxide in wet atmospheres.

    摘要翻译: 公开了用于制备用于气体分离方法的各种吸附剂形状如珠子的改进方法。 在其与矿物粘合剂接触之前,通过热预处理使其具有结晶性粉末形式的高度硅质纳米多孔材料得到稳定化。 所得到的吸附剂形状特别是当其水性悬浮液中矿物粘合剂的pH值大于10时,特别是在该方法中产生的吸附剂珠特别适用于分离气态低分子量烃 作为链烷烃,烯烃及其在湿气氛中二氧化碳的混合物。

    Production of zeolites
    3.
    发明公开
    Production of zeolites 审中-公开
    Herstellung von Zeolithen

    公开(公告)号:EP1184337A1

    公开(公告)日:2002-03-06

    申请号:EP01307222.8

    申请日:2001-08-24

    IPC分类号: C01B39/22

    摘要: A composite zeolite product is prepared by crystallizing a sodium ion- or sodium ion- and potassium ion-containing alumina-silica hydrogel under conditions which result in the production of a zeolitic composite which contains both zeolite type A and zeolite type X crystal domains. The composite is ion exchanged with divalent cations. In a preferred embodiment, calcium ions constitute a substantial number of the composite's exchangeable cations and the type X portion of the composite zeolite product has a silicon-to-aluminum atomic ratio in the range of 0.9 to less than 1.15. The composite is a nitrogen oxide- and hydrocarbon-selective adsorbent which can be incorporated into an atmospheric air prepurification plant downstream of a water vapor-selective adsorbent and a carbon dioxide-selective adsorbent.

    摘要翻译: 通过在导致生成含有A型沸石和X型晶体结构域的沸石复合材料的条件下使钠离子或钠离子和含钾离子的氧化铝 - 二氧化硅水凝胶结晶来制备复合沸石产物。 该复合物与二价阳离子进行离子交换。 在优选的实施方案中,钙离子构成了大量的复合材料的可交换阳离子,并且复合沸石产品的X型部分的硅 - 铝原子比在0.9至小于1.15的范围内。 复合材料是氮氧化物和烃选择性吸附剂,其可以结合到水蒸汽选择性吸附剂和二氧化碳选择性吸附剂下游的大气空气预净化装置中。

    Method of manufacture of multicationic molecular sieves
    4.
    发明公开
    Method of manufacture of multicationic molecular sieves 审中-公开
    Verfahren zur Herstellung von multikationischen Molekularsieben

    公开(公告)号:EP1123897A1

    公开(公告)日:2001-08-16

    申请号:EP01300936.0

    申请日:2001-02-02

    IPC分类号: C01B39/02

    摘要: Zeolites exchanged with lithium, caesium or rubidium cations and polyvalent cations (e.g. pure earths or Group III cation) are prepared by first partially ion-exchanging a sodium-containing zeolite, a potassium-containing zeolite or a sodium- and potassium-containing zeolite with polyvalent cations, then heat-treating the partially polyvalent cation-exchanged zeolite, then ion exchanging the heat-treated zeolite with ammonium cations, and then reacting the ammonium cation-exchanged zeolite with a water-soluble lithium compound under conditions which result in the removal of ammonia from the reaction zone.

    摘要翻译: 与锂,铯或铷阳离子和多价阳离子(例如纯土或III族阳离子)交换的沸石通过首先将含钠沸石,含钾沸石或含钠和钾的沸石部分离子交换而制备, 多价阳离子,然后热处理部分多价阳离子交换的沸石,然后将热处理的沸石与铵阳离子进行离子交换,然后使铵阳离子交换的沸石与水溶性锂化合物在导致去除的条件下反应 的氨从反应区。