利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

63 条记录 (耗时 0.013 秒)

    Crystalline zeolite composition (ECR-5) having a cancrinite-like structure and process for its preparation
    3.
    发明授权
    Crystalline zeolite composition (ECR-5) having a cancrinite-like structure and process for its preparation 失效
    具有罐状结构的结晶沸石组合物（ECR-5）及其制备方法

    公开(公告)号：US4717560A

    公开(公告)日：1988-01-05

    申请号：US698014

    申请日：1985-02-04

    申请人： David E. W. Vaughan

    发明人： David E. W. Vaughan

    IPC分类号： B01J20/18 ,  B01J29/00 ,  B01J29/70 ,  C01B39/02 ,  C01B39/50 ,  C01B33/28

    CPC分类号： B01J29/70 ,  C01B33/2869 ,  C01B33/2892

    摘要： A crystalline zeolite may be prepared which has a composition, in terms of mole ratios of oxides, in the range:1.0 to 1.3 Na.sub.2 O:Al.sub.2 O.sub.3 :2.1 to 8.0 SiO.sub.2and having a cancrinite-like structure in which the twelveing channel thereof is not blocked by, for example, salt molecules. The preferred compositions are of the formula:1.1 to 1.3 Na.sub.2 O:Al.sub.2 O.sub.3 :2.4 to 3.1 SiO.sub.2This zeolite may be prepared from crystallization of an aged reaction mixture containing aqueous ammonia, a source of silica, a source of alumina and sodium hydroxide.

    摘要翻译： 可以制备结晶沸石，其具有以氧化物的摩尔比计的组合物，其范围为1.0-1.3Na 2 O:Al 2 O 3：2.1至8.0SiO 2，并且具有其中十二个通道不被阻塞的可能类似结构 通过例如盐分子。 优选的组合物具有下式：1.1至1.3 Na 2 O：Al 2 O 3：2.4至3.1SiO 2该沸石可以由含有氨水，二氧化硅源，氧化铝源和氢氧化钠的老化反应混合物结晶制备。

    Mineral polymers and methods of making them
    4.
    发明授权
    Mineral polymers and methods of making them 失效
    矿物聚合物及其制备方法

    公开(公告)号：US4349386A

    公开(公告)日：1982-09-14

    申请号：US182571

    申请日：1980-08-29

    申请人： Joseph Davidovits

    发明人： Joseph Davidovits

    IPC分类号： B22C1/18 ,  C01B33/26 ,  C01B39/02 ,  C04B28/00 ,  C04B35/63 ,  C04B35/16

    CPC分类号： C01B33/2869 ,  B22C1/181 ,  C04B28/006 ,  C04B35/6316 ,  Y02P40/165

    摘要： New mineral polymers called polysialates have the empiral formula M.sub.n [--(Si--O.sub.2 --).sub.z --Al--O.sub.2 --].sub.n,wH.sub.2 O where z is 1, 2 or 3, M is sodium, or sodium plus potassium, n is the degree of polycondensation, and w has a value up to about 7. The method for making these polymers includes heating an aqueous alkali silico-aluminate mixture having an oxide-mole ratio within certain specific ranges for a time sufficient to form the polymer.

    摘要翻译： 称为聚唾液酸盐的新型矿物聚合物具有方程式Mn [ - （Si-O 2 - ）z-Al-O 2 - ] n，wH 2 O，其中z为1,2或3，M为钠或钠加钾，n为 的缩聚物，并且w具有高达约7的值。制备这些聚合物的方法包括将氧化物 - 摩尔比在一定特定范围内加热一段足以形成聚合物的时间的碱性硅酸铝铝混合物。

    Preparation of synthetic ferrierite
    5.
    发明授权
    Preparation of synthetic ferrierite 失效
    合成镁碱沸石的制备

    公开(公告)号：US4017590A

    公开(公告)日：1977-04-12

    申请号：US677263

    申请日：1976-04-15

    申请人： William E. Cormier ,  Leonard B. Sand

    发明人： William E. Cormier ,  Leonard B. Sand

    IPC分类号： C01B39/44 ,  C01B33/28

    CPC分类号： C01B33/2869 ,  Y10S423/23

    摘要： Synthetic Na,K-ferrierite, a molecular sieve zeolite capable of intracrystalline adsorption of molecules, is prepared by hydrothermal synthesis in the water, soda, potash, alumina, silica system. Crystallization is best achieved in the temperature range of 230.degree.-310.degree. C and autoclaving times of 2-96 hours with the use of co-precipitated silica-alumina gels and Na and K carbonates and bicarbonates.

    摘要翻译： 通过水，苏打，钾，氧化铝，二氧化硅体系中的水热合成制备合成Na，K-镁碱沸石，一种能够分子内结晶吸附的分子筛沸石。 使用共沉淀二氧化硅 - 氧化铝凝胶和Na和K碳酸盐和碳酸氢盐，在230°-310℃的温度范围和2-96小时的高压灭菌时间内最好实现结晶。

    Method for preparing a small pore synthetic zeolite
    6.
    发明授权
    Method for preparing a small pore synthetic zeolite 失效
    制备小孔合成沸石的方法

    公开(公告)号：US3720753A

    公开(公告)日：1973-03-13

    申请号：US3720753D

    申请日：1971-02-22

    申请人： EXXON RESEARCH ENGINEERING CO

    发明人： ROBSON H

    IPC分类号： B01J29/70 ,  C01B39/46 ,  C01B33/28

    CPC分类号： C01B33/2869 ,  B01J29/70 ,  C01B33/2892

    摘要： A synthetic small pore crystalline zeolite having a structure and X-ray diffraction pattern similar to that of synthetic zeolite ZK-5 is prepared by digesting an aqueous reactant mixture containing silica, alumina, and either a mixture of potassium oxide and cesium oxide, or potassium oxide, cesium oxide and sodium oxide at a temperature of from 60* to 120*C. The zeolite product contains cesium cations as well as potassium cations in its as-synthesized form. A substantial portion of the cations is in an inaccessable position in the crystal lattice so that it is essentially unexchangable. The zeolite product is used as a selective adsorbent or as a catalyst after suitable modification by base exchange and deposition of a catalytically active metal.

    摘要翻译： 具有类似于合成沸石ZK-5的结构和X射线衍射图的合成小孔结晶沸石通过消化含有二氧化硅，氧化铝和氧化钾和氧化铯的混合物的水性反应物混合物或钾 氧化物，氧化铯和氧化钠，温度为60-120℃。沸石产物含有铯阳离子以及其合成形式的钾阳离子。 阳离子的大部分在晶格中处于不可接近的位置，使得其基本上是不可更换的。 沸石产物在通过碱交换和沉积催化活性金属进行适当改性后用作选择性吸附剂或催化剂。