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86 条记录 (耗时 0.031 秒)

    Ultra high silicon-content zeolites and preparation thereof
    52.
    发明授权
    Ultra high silicon-content zeolites and preparation thereof 失效
    超高硅含量沸石及其制备方法

    公开(公告)号：US4093560A

    公开(公告)日：1978-06-06

    申请号：US688459

    申请日：1976-05-20

    申请人： George T. Kerr ,  Arthur W. Chester

    发明人： George T. Kerr ,  Arthur W. Chester

    IPC分类号： C01B39/02 ,  B01J29/06

    CPC分类号： C01B39/026 ,  B01J2229/16

    摘要： A method is provided for obtaining crystalline dealuminized products by treating a slurry of a crystalline aluminosilicate zeolite in an aqueous solution of an ammonium or alkali metal salt which upon acidification yields an anion which complexes with aluminum by adding to said slurry a water-soluble acid having a first ionization constant greater than 10.sup.-2 at a rate such that a controlled amount of aluminum is removed from the zeolite to yield a resulting product from which at least about 10% and as much as about 85% of the initial aluminum has been removed while retaining more than 60% of the original crystallinity.

    摘要翻译： 提供一种通过在铵或碱金属盐的水溶液中处理结晶硅铝酸盐沸石的浆料来获得结晶脱铝产品的方法，其在酸化时产生与铝复合的阴离子，所述阴离子通过向所述浆料中加入具有 大于10-2的第一离子化常数，使得从沸石中除去受控量的铝，得到所得产物，其中至少约10％和最多约85％的初始铝已被除去 同时保留60％以上的原始结晶度。

    Synthetic porous crystalline material, EMM-1, its synthesis and use
    53.
    发明授权
    Synthetic porous crystalline material, EMM-1, its synthesis and use 失效
    合成多孔结晶材料，EMM-1，其合成与应用

    公开(公告)号：US06787124B2

    公开(公告)日：2004-09-07

    申请号：US10367295

    申请日：2003-02-14

    申请人： Arthur W. Chester ,  Sandeep S. Dhingra ,  Stephen G. Casmer

    发明人： Arthur W. Chester ,  Sandeep S. Dhingra ,  Stephen G. Casmer

    IPC分类号： C01B3948

    CPC分类号： C01B39/023 ,  B01J20/18 ,  B01J29/035 ,  B01J29/7007 ,  B01J29/86 ,  C01B37/005 ,  C01B39/48

    摘要： A new synthetic porous crystalline material, designated EMM-1, is disclosed having, in its calcined form, the X-ray diffraction pattern of Table 2 above. Also disclosed are methods of making EMM-1 in the presence of HF using various organic nitrogen compounds as directing agents. Aluminum-containing EMM-1 can be produced either by inclusion of Al in the synthesis, or by incorporation of B or Ga in the synthesis, followed by post treatment with aluminum nitrate or other sources of Al. EMM-1 is useful as an acid catalyst and as an adsorbent.

    摘要翻译： 公开了一种名为EMM-1的新的合成多孔结晶材料，其以其煅烧形式具有上述表2的X射线衍射图。 还公开了使用各种有机氮化合物作为引导剂在HF存在下制备EMM-1的方法。 含铝的EMM-1可以通过在合成中包含Al或通过在合成中并入B或Ga，然后用硝酸铝或其它Al源进行后处理来制备。 EMM-1可用作酸催化剂和吸附剂。

    Method for reducing gasoline sulfur in fluid catalytic cracking
    54.
    发明授权
    Method for reducing gasoline sulfur in fluid catalytic cracking 有权
    减少流化床催化裂化中汽油硫的方法

    公开(公告)号：US06635169B1

    公开(公告)日：2003-10-21

    申请号：US09399637

    申请日：1999-09-20

    申请人： Nazeer A. Bhore ,  Arthur W. Chester ,  Ke Liu ,  Hye Kyung Cho Timken

    发明人： Nazeer A. Bhore ,  Arthur W. Chester ,  Ke Liu ,  Hye Kyung Cho Timken

    IPC分类号： C10G1102

    CPC分类号： C10G11/05 ,  C10G11/02 ,  C10G11/18 ,  C10G2300/202 ,  C10G2300/4093 ,  C10G2300/70 ,  C10G2300/80 ,  C10G2400/02 ,  C10L1/06

    摘要： The sulfur content of liquid cracking products, especially the cracked gasoline, of a catalytic cracking process is reduced by the use of a catalyst having a product sulfur reduction component containing a metal component in an oxidation state greater than zero, wherein the average oxidation state of the metal component is increased by an oxidation step following conventional catalyst regeneration. The catalyst is normally a molecular sieve such as a zeolite Y, REY, USY, REUSY, Beta or ZSM-5. The metal component is normally a metal of Groups 5, 7, 8, 9, 12 or 13 of the periodic table, preferably vanadium or zinc. The sulfur reduction component may be a separate particle additive or part of an integrated cracking/sulfur reduction catalyst. A system for increasing the oxidation state of the metal component of a Gasoline Sulfur Reduction additive is also provided.

    摘要翻译： 通过使用含有氧化态大于零的金属组分的产物硫还原组分的催化剂，减少了催化裂化过程的液体裂解产物，特别是裂化汽油的硫含量，其中平均氧化态 通过常规催化剂再生后的氧化步骤来增加金属成分。 催化剂通常是分子筛，例如沸石Y，REY，USY，REUSY，Beta或ZSM-5。 金属组分通常是周期表第5,7,8,9,12或13族的金属，优选为钒或锌。 硫还原组分可以是单独的颗粒添加剂或一体的裂化/硫还原催化剂。 还提供了用于提高汽油硫还原添加剂的金属成分的氧化态的系统。

    Aromatics production
    57.
    发明授权
    Aromatics production 失效
    芳香族生产

    公开(公告)号：US4686312A

    公开(公告)日：1987-08-11

    申请号：US922230

    申请日：1986-10-23

    申请人： Yung-Feng Chu ,  Arthur W. Chester

    发明人： Yung-Feng Chu ,  Arthur W. Chester

    IPC分类号： C07C1/20 ,  C07C15/04 ,  C07C15/06 ,  C07C15/08

    CPC分类号： C07C15/06 ,  C07C1/20 ,  C07C15/04 ,  C07C15/08 ,  C07C2529/40 ,  C07C2529/44 ,  C07C2529/46 ,  C07C2529/65 ,  C07C2529/70

    摘要： Disclosed is a multistage process for converting lower aliphatic oxygeanated hydrocarbon feedstock to hydrocarbon product rich in benzene, toluene and/or xylene which comprises:contacting said oxygenated hydrocarbons in a primary stage with a medium pore shape selective acidic zeolite to an intermediate hydrocarbon product comprising predominantly aliphatic hydrocarbons;contacting at least a portion of the aliphatic hydrocarbons from the primary stage with a secondary stage catalyst comprising gallium-promoted medium pore shape selective zeolite characterized by a constraint index within the approximate range of 1 to 12 and a silica to alumina ratio of about 20 to 100:1; thereby producing benzene, toluene and/or xylene.

    摘要翻译： 公开了一种用于将低级脂肪族含氧化的烃原料转化为富含苯，甲苯和/或二甲苯的烃产物的多级方法，其包括：将初级阶段的所述氧化烃与中孔形选择性酸性沸石接触至主要包含 脂肪烃; 使来自初级阶段的脂族烃的至少一部分与二级催化剂接触，所述次级催化剂包含镓促进的中孔形状选择性沸石，其特征在于约1到12的约束指数和二氧化硅与氧化铝之比为约20至 100：1; 从而产生苯，甲苯和/或二甲苯。

    Catalyst for olefin polymerization
    60.
    发明授权
    Catalyst for olefin polymerization 失效
    烯烃聚合催化剂

    公开(公告)号：US4526942A

    公开(公告)日：1985-07-02

    申请号：US456927

    申请日：1983-01-10

    申请人： Arthur W. Chester ,  James G. Murray

    发明人： Arthur W. Chester ,  James G. Murray

    IPC分类号： C08F10/00 ,  C08F4/06

    CPC分类号： C08F10/00

    摘要： Zeolite supported, organochromium based catalyst compositions are provided which are especially suitable for the polymerization of 1-olefins such as ethylene. Pi-bonded organochromium [II] compounds such as chromocene (dicyclopentadienyl chromium) are reacted with ZSM-5 type zeolites to produce such novel catalysts.

    摘要翻译： 提供了支撑沸石的有机铬基催化剂组合物，其特别适用于1-烯烃如乙烯的聚合。 将引发的有机铬[II]化合物如色烯（二环戊二烯基铬）与ZSM-5型沸石反应生成这种新型催化剂。