利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

34 条记录 (耗时 0.028 秒)

    Preparation of zeolites
    4.
    发明授权
    Preparation of zeolites 失效
    沸石的制备

    公开(公告)号：US4091007A

    公开(公告)日：1978-05-23

    申请号：US627158

    申请日：1975-10-30

    申请人： Francis G. Dwyer ,  Albert B. Schwartz

    发明人： Francis G. Dwyer ,  Albert B. Schwartz

    IPC分类号： B01J29/40 ,  B01J29/70 ,  C01B39/34 ,  C01B39/40 ,  C07C2/00 ,  C01B33/28 ,  C07F5/06

    CPC分类号： C01B39/40 ,  B01J29/40 ,  B01J29/7011 ,  C01B39/34 ,  C07C2/00 ,  B01J2229/26 ,  B01J2229/36 ,  B01J2229/42 ,  C07C2529/40 ,  Y10S423/22 ,  Y10S423/26

    摘要： An improved method for preparing a crystalline aluminosilicate zeolite having uniform pores and greater than 40 percent crystallinity which comprises forming a critical reaction mixture containing a source of at least two cations, silica, alumina and water, wherein at least about 70 weight percent of the alumina is provided to the reaction mixture by an alumina-containing clay being added thereto, and maintaining the reaction mixture at a temperature and pressure for a time necessary to crystallize the crystalline aluminosilicate from the reaction mixture. It is desirable to preform said reaction mixture into discrete particles such as pellets or extrudates which retain their shape and acquire substantial strength in the crystallization process.

    摘要翻译： 一种制备具有均匀孔和大于40％结晶度的结晶硅铝酸盐沸石的改进方法，其包括形成含有至少两种阳离子源，二氧化硅，氧化铝和水的临界反应混合物，其中至少约70重量％的氧化铝 通过向其中加入的含氧化铝粘土提供给反应混合物，并将反应混合物保持在温度和压力下使反应混合物中结晶硅铝酸盐结晶所需的时间。 期望将所述反应混合物预制成离散的颗粒，例如颗粒或挤出物，其保持其形状并在结晶过程中获得显着的强度。

    Continuous process for manufacturing crystalline zeolites in continuously stirred backmixed crystallizers
    7.
    发明授权
    Continuous process for manufacturing crystalline zeolites in continuously stirred backmixed crystallizers 失效
    在连续搅拌的回混结晶器中制造结晶沸石的连续方法

    公开(公告)号：US4818509A

    公开(公告)日：1989-04-04

    申请号：US921704

    申请日：1986-10-21

    申请人： Francis G. Dwyer ,  Albert B. Schwartz

    发明人： Francis G. Dwyer ,  Albert B. Schwartz

    IPC分类号： C01B39/02 ,  C01B33/28

    CPC分类号： C01B39/02

    摘要： A continuous process is described for manufacturing a wide variety of zeolites having selected crystal sizes and other desired characteristics. Selected raw materials are fed to a precursor tank of relatively large capacity, wherein the resultant zeolite precursor slurry is held at temperatures of up to 180.degree. F. for 4-16 hours, with high shear agitation, as an induction period. The slurry is sent to a plurality of crystallization tanks before it possesses a total solids content exceeding 10% by weight and a crystalline content exceeding 15% by weight of the total solids content. The crystallization tanks are preferably operated in two stages. The first crystallizing stage is held at a temperature of 180.degree.-250.degree. F. for 2-72 hours. The second crystallizing stage is held at a temperature greater than 250.degree. F. for 2-16 hours.

    摘要翻译： 描述了用于制造具有选定的晶体尺寸和其它期望特性的多种沸石的连续方法。 将选择的原料进料到相对大容量的前体罐中，其中所得沸石前体浆料在高剪切搅拌下作为诱导期保持在高达180°F的温度下4-16小时。 在其具有超过10重量％的总固体含量和超过总固体含量的15重量％的结晶含量之前，将浆料送至多个结晶槽。 结晶槽优选在两个阶段中操作。 第一结晶阶段在180-250°F的温度下保持2-72小时。 第二结晶阶段在大于250°F的温度下保持2-16小时。

    Conversion of alcohols or ethers using rare earth alumina
    8.
    发明授权
    Conversion of alcohols or ethers using rare earth alumina 失效
    使用稀土氧化铝转化醇或醚

    公开(公告)号：US4258218A

    公开(公告)日：1981-03-24

    申请号：US6408

    申请日：1979-01-25

    申请人： Francis G. Dwyer ,  Albert B. Schwartz

    发明人： Francis G. Dwyer ,  Albert B. Schwartz

    IPC分类号： B01J23/10 ,  B01J29/40 ,  C07C41/09 ,  C07C43/04

    CPC分类号： B01J23/10 ,  B01J29/405 ,  C07C41/09 ,  B01J2229/42

    摘要： An improved process using a rare earth-containing catalyst is provided. The catalyst comprises a composite of matrix and rare earth or of zeolite, rare earth and matrix, usually alumina. The rare earth can be a single metal or a mixture of rare earth metals. The process involved is the conversion of alcohols or ethers to gasoline boiling range hydrocarbons.

    摘要翻译： 提供了使用含稀土催化剂的改进方法。 该催化剂包括基质和稀土或沸石，稀土和基质（通常为氧化铝）的复合物。 稀土可以是单一金属或稀土金属的混合物。 所涉及的方法是将醇或醚转化为汽油沸程烃。

    Hydrocarbon conversion over activated erionite
    10.
    发明授权
    Hydrocarbon conversion over activated erionite 失效
    碳氢化合物转化为活化的白云石

    公开(公告)号：US4021332A

    公开(公告)日：1977-05-03

    申请号：US586130

    申请日：1975-06-12

    申请人： Robert C. Wilson, Jr. ,  Albert B. Schwartz

    发明人： Robert C. Wilson, Jr. ,  Albert B. Schwartz

    IPC分类号： B01J29/56 ,  C10G11/02 ,  C10G45/64 ,  B01J29/06 ,  C10G11/04

    CPC分类号： C10G45/64 ,  B01J29/56

    摘要： This invention is directed to the shape selective conversion of a hydrocarbon charge over erionite which has been activated by the steps comprising calcining the erionite as a first step, contacting with a solution of an ammonium salt, contacting with a solution of metal salt containing a metal such as calcium, calcining again, contacting again with a solution of an ammonium salt and then with a solution of a metal salt containing nickel or another similar metal, and finally calcining. It is also directed to the catalyst utilized in affecting said conversion and to the method for preparing such catalyst.

    摘要翻译： 本发明涉及通过以下步骤活化的烃电荷在毛沸石上的形状选择性转化：包括煅烧作为第一步的毛沸石的步骤，与铵盐溶液接触，与含有金属的金属盐的溶液接触 例如钙，再次煅烧，再次与铵盐溶液接触，再与含有镍或其它类似金属的金属盐溶液接触，最后煅烧。 还涉及用于影响所述转化率的催化剂和制备这种催化剂的方法。