Method of manufacture of molecular sieves
    2.
    发明公开
    Method of manufacture of molecular sieves 审中-公开
    分子筛的制造方法

    公开(公告)号:EP1125892A3

    公开(公告)日:2002-08-21

    申请号:EP01301134.1

    申请日:2001-02-08

    IPC分类号: C01B39/02 B01J20/18

    摘要: Zeolites exchanged with lithium, rubidium, cesium cations and trivalent cations are prepared by first partially, fully or excessively ion-exchanging a sodium-containing zeolite, a potassium-containing zeolite or a sodium- and potassium-containing zeolite with trivalent cations, then calcining the partially, fully or excessively trivalent cation-exchanged zeolite, and then ion exchanging the calcined zeolite with lithium rubidium, cesium cations, thereby replacing hydrogen and any sodium and/or potassium cations remaining in the zeolite with lithium, rubidium, cesium cations, whereby trivalent cations present in the zeolite will not be substantially replaced by the lithium ions.

    摘要翻译: 首先用含三价阳离子的含钠沸石,含钾沸石或含钠沸石和含钾沸石部分,完全或过度地进行离子交换,然后煅烧,制备与锂,铷,铯阳离子和三价阳离子交换的沸石 部分,完全或过量的三价阳离子交换沸石,然后将煅烧过的沸石与锂铷,铯阳离子进行离子交换,由此用锂,铷,铯阳离子代替氢和残留在沸石中的任何钠和/或钾阳离子,由此 存在于沸石中的三价阳离子基本上不会被锂离子取代。

    Production of X Zeolites
    4.
    发明公开
    Production of X Zeolites 审中-公开
    Herstellung von X-Zeolithen

    公开(公告)号:EP1184338A1

    公开(公告)日:2002-03-06

    申请号:EP01307245.9

    申请日:2001-08-24

    IPC分类号: C01B39/22

    摘要: Sodium X zeolite containing little or no sodium A zeolite as by-product, is prepared by direct synthesis from a uniform, substantially potassium ion free aqueous reaction / mixture comprising silica, alumina and sodium ions, the concentration of the components in the reaction mixture being such that the silica/alumina molar ratio is in the range of about 2.1:1 to about 3.0:1, the sodium oxide/silica ratio is in the range of about 1.2:1 to about 2.5:1 and the water / sodium oxide molar ratio is greater than about 35:1.
    The crystallization step is carried out by maintaining the reaction mixture at a temperature below about 70° C, but preferably equal to or above 50° C for the duration of the crystallization step. Preferably, the ratios of components in the solutions used to make the reaction mixture are such that in the reaction mixture the silica/alumina molar ratio will be in the range of about 2.25:1 to about 2.4:1; the sodium oxide to silica molar ratio will be in the range 1.6:1 to about 1.9:1; and the water to sodium oxide molar ratio will be greater than about 60:1. The reaction mixture is preferably prepared as a hydrogel.

    摘要翻译: 通过从包含二氧化硅,氧化铝和钠离子的均匀的基本上不含钾离子的含水反应/混合物直接合成制备含有很少或不含有钠A沸石的X沸石钠,反应混合物中组分的浓度为 使得二氧化硅/氧化铝的摩尔比在约2.1:1至约3.0:1的范围内,氧化钠/二氧化硅的比例在约1.2:1至约2.5:1的范围内,水/氧化钠摩尔 比例大于约35:1。 在结晶步骤的持续时间内,将反应混合物保持在低于约70℃,但优选等于或高于50℃的温度下进行结晶步骤。 优选地,用于制备反应混合物的溶液中的组分的比例使得在反应混合物中,二氧化硅/氧化铝的摩尔比将在约2.25:1至约2.4:1的范围内; 氧化钠与二氧化硅的摩尔比将在1.6:1至1.9:1的范围内; 并且水与氧化钠的摩尔比将大于约60:1。 反应混合物优选制备为水凝胶。

    Method of manufacture of molecular sieves
    5.
    发明公开
    Method of manufacture of molecular sieves 审中-公开
    Verfahren zur Herstellung von Molekularsieben

    公开(公告)号:EP1125892A2

    公开(公告)日:2001-08-22

    申请号:EP01301134.1

    申请日:2001-02-08

    IPC分类号: C01B39/02 B01J20/18

    摘要: Zeolites exchanged with lithium, rubidium, cesium cations and trivalent cations are prepared by first partially, fully or excessively ion-exchanging a sodium-containing zeolite, a potassium-containing zeolite or a sodium- and potassium-containing zeolite with trivalent cations, then calcining the partially, fully or excessively trivalent cation-exchanged zeolite, and then ion exchanging the calcined zeolite with lithium rubidium, cesium cations, thereby replacing hydrogen and any sodium and/or potassium cations remaining in the zeolite with lithium, rubidium, cesium cations, whereby trivalent cations present in the zeolite will not be substantially replaced by the lithium ions.

    摘要翻译: 与锂,铷,铯阳离子和三价阳离子交换的沸石通过首先部分,完全或过度离子交换含三价阳离子的含钠沸石,含钾沸石或含钠和钾的沸石,然后煅烧 部分,完全或过度三价阳离子交换的沸石,然后将煅烧的沸石与锂铷,铯阳离子进行离子交换,从而用锂,铷,铯阳离子代替残留在沸石中的氢和任何钠和/或钾阳离子,由此 存在于沸石中的三价阳离子基本上不会被锂离子所取代。

    Production of zeolites
    6.
    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
    7.
    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。

    Method of manufacture of molecular sieves
    8.
    发明公开
    Method of manufacture of molecular sieves 失效
    Verfahren zur Herstellung von Molekularsieben

    公开(公告)号:EP0850877A1

    公开(公告)日:1998-07-01

    申请号:EP97310245.2

    申请日:1997-12-17

    IPC分类号: C01B39/02

    CPC分类号: C01B39/026

    摘要: Zeolites exchanged with lithium ions and, optionally, with polyvalent cations are prepared by ion-exchanging a sodium-containing zeolite, a potassium-containing zeolite or a sodium- and potassium-containing zeolite with ammonium ions, thereby replacing the sodium and/or potassium ions with ammonium ions, and then reacting the ammonium ion-exchanged zeolite with a water-soluble lithium compound under conditions which result in the removal of ammonia from the reaction zone. Polyvalent ions, which may be present in the zeolite undergoing ion-exchange, will not be substantially replaced by the ammonium or lithium ions.

    摘要翻译: 与锂离子和任选地与多价阳离子交换的沸石通过用含铵沸石,含钾沸石或含钠和钾的沸石与铵离子进行离子交换来制备,从而将钠和/或钾 离子,然后使铵离子交换的沸石与水溶性锂化合物在导致从反应区除去氨的条件下反应。 可能存在于进行离子交换的沸石中的多价离子基本上不会被铵或锂离子所替代。