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15 条记录 (耗时 0.01 秒)

    Synthesis of low silicon sodium X zeolite
    12.
    发明授权
    Synthesis of low silicon sodium X zeolite 失效
    低硅钠X沸石的合成

    公开(公告)号：US06596256B1

    公开(公告)日：2003-07-22

    申请号：US09648798

    申请日：2000-08-28

    申请人： Adeola F. Ojo ,  Frank R. Fitch ,  Martin Bülow ,  Craig S. Gittleman ,  Sudhakar R. Jale

    发明人： Adeola F. Ojo ,  Frank R. Fitch ,  Martin Bülow ,  Craig S. Gittleman ,  Sudhakar R. Jale

    IPC分类号： C01B3922

    CPC分类号： C01B39/22 ,  B01D2257/102 ,  B01D2257/11 ,  B01D2257/402 ,  B01D2257/404 ,  B01D2257/504 ,  B01D2257/702 ,  B01J20/18 ,  B01J20/186 ,  Y02C10/08 ,  Y02C20/10 ,  Y10S423/21

    摘要： Low silicon sodium X zeolite containing little or no sodium A zeolite as by-product, is prepared by direct synthesis from sodium ion-containing hydrogels, the crystallization step being carried out by maintaining the hydrogels at a temperature below about 70° C., and preferably in the range of about 50 to about 70° C. for the duration of the crystallization step. Preferably, the ratios of components in the solutions used to make the hydrogel are such that in the hydrogel 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.

    摘要翻译： 通过从含钠离子的水凝胶直接合成制备含有很少或不含有钠A沸石的低硅钠X沸石，结晶步骤通过将水凝胶保持在低于约70℃的温度下进行，和 优选在约50至约70℃的范围内，在结晶步骤的持续时间内。 优选地，用于制备水凝胶的溶液中组分的比例使得在水凝胶中二氧化硅/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至约1.9:1的范围内; 并且水与氧化钠的摩尔比将大于约60:1。

    Metallo-organic polymers for gas separation and purification
    13.
    发明授权
    Metallo-organic polymers for gas separation and purification 失效
    用于气体分离和纯化的金属有机聚合物

    公开(公告)号：US06491740B1

    公开(公告)日：2002-12-10

    申请号：US09613735

    申请日：2000-07-11

    申请人： Qing Min Wang ,  Dongmin Shen ,  Martin Bülow ,  Miu Ling Lau ,  Frank R. Fitch ,  Shuguang Deng

    发明人： Qing Min Wang ,  Dongmin Shen ,  Martin Bülow ,  Miu Ling Lau ,  Frank R. Fitch ,  Shuguang Deng

    IPC分类号： B01D5302

    CPC分类号： B01D53/02 ,  B01D2253/202 ,  B01D2253/204 ,  B01D2257/402 ,  B01D2257/504 ,  B01D2257/702 ,  B01J20/226 ,  B01J20/26 ,  C08G79/00 ,  Y02C10/08 ,  Y02C20/10 ,  Y02P20/152 ,  Y02P20/153 ,  Y10S95/90

    摘要： The present invention provides for methods and compositions for gas separation and purification utilizing a metallo-organic polymer adsorbent in processes for separating carbon dioxide, water, nitrogen oxides and hydrocarbons from gas streams. The metallo-organic polymer adsorbent composition has the formula: [R(L)n]mMn, wherein R represents an organic spacer selected from the group consisting of an organic cyclic or acyclic compound; L represents a ligation group substituted on the organic spacer selected from the group consisting of carboxylate group, —C(═O)O−; dithiocarboxylate group, —C(═S)S−; and &bgr;-diketonate group, —C(═O)C(R′)═C(—O−)—, wherein R′═H, or an aliphatic or aromatic group; M represents a transition metal or a rare earth metal selected from the group consisting of I to VIIB and VIII metals; m is the oxidation state of transition metal; and n is the number of the ligation group substituted on the organic spacer.

    摘要翻译： 本发明提供在气流中分离二氧化碳，水，氮氧化物和烃的方法中利用金属有机聚合物吸附剂进行气体分离和净化的方法和组合物。 金属有机聚合物吸附剂组合物具有下式：其中R表示选自有机环状或非环状化合物的有机间隔物; L表示在有机间隔基上取代的连接基，所述有机间隔基选自羧酸酯基，-C（= O）O-; 二硫代羧酸酯基，-C（= S）S-; 和β-二酮基团，-C（= O）C（R'）= C（-O - ） - ，其中R'= H，或脂族或芳族基团; M表示选自I至VIIB和VIII族金属的过渡金属或稀土金属; m是过渡金属的氧化态; n是在有机间隔物上取代的连接基团的数目。