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446 条记录 (耗时 0.021 秒)

    Alkylation of benzene to form linear alkylbenzenes using fluorine-containing mordenites
    51.
    发明授权
    Alkylation of benzene to form linear alkylbenzenes using fluorine-containing mordenites 有权
    使用含氟丝光沸石烷基化苯形成直链烷基苯

    公开(公告)号：US6133492A

    公开(公告)日：2000-10-17

    申请号：US174891

    申请日：1998-10-19

    申请人： Prakasa Rao Anantaneni

    发明人： Prakasa Rao Anantaneni

    IPC分类号： B01D3/32 ,  B01J27/12 ,  B01J29/18 ,  B01J37/26 ,  C01B39/02 ,  C07C2/66 ,  C07C15/107 ,  C07C2/68

    CPC分类号： C07C15/107 ,  B01D3/322 ,  B01J27/12 ,  B01J29/18 ,  B01J37/26 ,  C01B39/026 ,  C07C2/66 ,  B01J2229/16 ,  C07C2521/12 ,  C07C2521/16 ,  C07C2527/1206 ,  C07C2527/126 ,  C07C2529/16 ,  C07C2529/18 ,  C07C2529/70 ,  Y02P20/127

    摘要： This invention is directed to a fluorine-containing mordenite catalyst and use thereof in the manufacture of linear alkylbenzene (LAB) by alkylation of benzene with an olefin. The olefin may have from about 10 to 14 carbons. The fluorine-containing mordenite is prepared typically by treatment with an aqueous hydrogen fluoride solution. The benzene alkylation may be conducted using reactive distillation. This invention is also directed to a process for production of LAB having a high 2-phenyl isomer content by use of the fluorine-containing mordenite in conjunction with a conventional solid LAB alkylation catalyst. The two catalysts may be used in a mixed catalyst bed or may be packed in series, with the relative proportions being adjusted to provide a desired 2-phenyl isomer content of in the final product.

    摘要翻译： 本发明涉及一种含氟丝光沸石催化剂及其通过苯与烯烃烷基化制备直链烷基苯（LAB）的用途。 烯烃可以具有约10至14个碳。 通常通过用氟化氢水溶液处理来制备含氟丝光沸石。 苯烷基化可以使用反应蒸馏进行。 本发明还涉及通过使用含氟丝光沸石与常规固体LAB烷基化催化剂一起生产具有高2-苯基异构体含量的LAB的方法。 这两种催化剂可以用在混合催化剂床中或者可以串联填充，相对比例被调节以提供最终产物中所需的2-苯基异构体含量。

    Zeolite catalyst with enhanced dealkylation activity and method for producing same
    52.
    发明授权
    Zeolite catalyst with enhanced dealkylation activity and method for producing same 失效

    公开(公告)号：US5990031A

    公开(公告)日：1999-11-23

    申请号：US753582

    申请日：1996-11-26

    申请人： Ashim Kumar Ghosh

    发明人： Ashim Kumar Ghosh

    IPC分类号： B01J29/06 ,  B01J29/18 ,  B01J29/24 ,  B01J37/26 ,  C10G11/05 ,  B01J29/064 ,  B01J29/20

    CPC分类号： B01J37/26 ,  B01J29/06 ,  B01J29/18 ,  B01J29/24 ,  B01J2229/42 ,  C10G2400/30

    摘要： An improved zeolite catalyst having enhanced dealkylation activity is provided. The catalyst is prepared by incorporating fluorine into the zeolite structure. In another embodiment, a transition element such as nickel is additionally incorporated into the zeolite structure. The process for producing the catalyst also includes ion-exchange and calcining steps. A mordenite type catalyst has been found to be particularly effective. The catalyst of the present invention demonstrates improved activity for the dealkylation of polyalkylaromatic compounds found in residue from the alkylation process and in heavy reformate streams from refineries. A dealkylation process using the catalyst of the present invention is provided. The dealkylation process shows good selectivity for benzene and monoalkylated aromatic products, and catalyst stability, particularly at high reaction temperatures.

    Catalyst for producing 1,1,1,2-tetrafluoroethane and method for preparing the same
    53.
    发明授权
    Catalyst for producing 1,1,1,2-tetrafluoroethane and method for preparing the same 失效
    用于制备1,1,1,2-四氟乙烷的催化剂及其制备方法

    公开(公告)号：US5500400A

    公开(公告)日：1996-03-19

    申请号：US302636

    申请日：1994-09-08

    申请人： Hoon Sik Kim ,  Byung Gwon Lee ,  Honggon Kim ,  Kun You Park

    发明人： Hoon Sik Kim ,  Byung Gwon Lee ,  Honggon Kim ,  Kun You Park

    IPC分类号： B01J27/12 ,  B01J27/132 ,  B01J27/138 ,  B01J37/26 ,  C07C17/20 ,  B01J23/26

    CPC分类号： B01J37/26 ,  B01J27/12 ,  B01J27/132 ,  B01J27/138 ,  C07C17/206

    摘要： There are a catalyst for producing 1,1,1,2-tetrafluoroethane represented as Cr.sub.a L.sub.b M.sub.c O.sub.x F.sub.y wherein L is Mg or Ca; M is one element selected from a group consisting of Ce, Ni, Zn, and Al; and each value of a, b, c, x and y are all between 0 and 2, and a method for preparing the same comprising the steps of: producing an admixture of a composition comprising chromium hydroxide hydrate and magnesium chloride or calcium chloride in a weight ratio of Cr to Mg or Ca ranging from 1:0.3 to 1:10 with an aqueous metal salt solution; reacting the admixture with an aqueous HF solution to give a paste; and sintering the paste.

    摘要翻译： 作为CraLbMcOxFy制备1,1,1,2-四氟乙烷的催化剂，其中L为Mg或Ca; M是选自Ce，Ni，Zn和Al中的一种元素; a，b，c，x和y的每个值都在0和2之间，并且其制备方法包括以下步骤：在含有氢氧化铬水合物和氯化镁或氯化钙的组合物的混合物中 用金属盐水溶液将Cr与Mg或Ca的重量比范围为1:0.3至1:10; 使混合物与HF水溶液反应，得到糊状物; 并烧结糊状物。

    Hydrocarbon conversion process using novel silica-substituted aluminas
    54.
    发明授权
    Hydrocarbon conversion process using novel silica-substituted aluminas 失效
    使用新型二氧化硅取代氧化铝的烃转化方法

    公开(公告)号：US5080778A

    公开(公告)日：1992-01-14

    申请号：US546610

    申请日：1990-06-29

    申请人： Susan L. Lambert

    发明人： Susan L. Lambert

    IPC分类号： B01J21/12 ,  B01J37/26 ,  C10G47/04

    CPC分类号： B01J21/12 ,  B01J37/26 ,  C10G47/04

    摘要： Hydrocarbons are reduced in molecular weight in a conversion process wherein they are contacted with a non-zeolitic solid catalyst comprising an alumina, such as gamma alumina, which has been isomorphously substituted with silicon. The treated alumina will have a fluorine to silicon mole ratio of about 0.8:1 to about 1.3:1. For use in hydrocracking, the catalyst contains a metal hydrogenation component and possibly one or more other inorganic oxides such as silica-alumina. Other non-zeolitic materials such as delaminated clay or silica-alumina may also be composited into the catalysts.

    摘要翻译： 碳氢化合物在转化过程中分子量降低，其中它们与非沸石固体催化剂接触，所述非沸石固体催化剂包含与硅同晶取代的氧化铝，例如γ氧化铝。 经处理的氧化铝的氟与硅摩尔比为约0.8:1至约1.3:1。 为了用于加氢裂化，催化剂含有金属氢化组分和可能的一种或多种其它无机氧化物如二氧化硅 - 氧化铝。 其它非沸石材料如分层粘土或二氧化硅 - 氧化铝也可以合成到催化剂中。

    Active amorphous mixed oxides
    55.
    发明授权
    Active amorphous mixed oxides 失效
    活性无定形混合氧化物

    公开(公告)号：US4902663A

    公开(公告)日：1990-02-20

    申请号：US113317

    申请日：1987-10-28

    申请人： Clarence D. Chang ,  Cynthia T-W. Chu

    发明人： Clarence D. Chang ,  Cynthia T-W. Chu

    IPC分类号： B01J21/08 ,  B01J21/12 ,  B01J23/04 ,  B01J37/00 ,  B01J37/26

    CPC分类号： B01J23/04 ,  B01J21/08 ,  B01J21/12 ,  B01J37/0009 ,  B01J37/26

    摘要： A method for preparing an amorphous mixed oxide composition of enhanced catalytic activity is provided which involves extruding a mixture of silica with one or more other oxides, e.g. titania, gallia, alumina, etc., treating the extrudate with a basic aqueous alkali and/or alkaline earth solution and then treating the extrudate with an ammonium exchange solution.

    摘要翻译： 提供了一种制备具有增强的催化活性的无定形混合氧化物组合物的方法，其包括将二氧化硅与一种或多种其它氧化物的混合物挤出。 氧化钛，氧化铝，氧化铝等，用碱性碱和碱土水溶液处理挤出物，然后用铵交换溶液处理挤出物。

    Catalysis over activated inorganic oxides
    58.
    发明授权
    Catalysis over activated inorganic oxides 失效
    催化超过活性无机氧化物

    公开(公告)号：US4500418A

    公开(公告)日：1985-02-19

    申请号：US552547

    申请日：1983-11-16

    申请人： Joseph N. Miale ,  Clarence D. Chang

    发明人： Joseph N. Miale ,  Clarence D. Chang

    IPC分类号： B01J37/26 ,  C10G11/04 ,  C10G11/08 ,  C10G45/46

    CPC分类号： B01J37/26

    摘要： A process is provided for conducting organic compound conversion over a catalyst comprising alumina and/or gallia which has been treated by a method which comprises contact with ammonium or boron fluoride reagent, contact with a particular aqueous ammonium exchange solution, and thereafter calcination.

    摘要翻译： 提供了一种通过包括氧化铝和/或胆汁酸的催化剂进行有机化合物转化的方法，其已通过包括与铵或氟化硼试剂接触的方法处理，与特定的铵交换水溶液接触，然后煅烧。