Synthesis of pyridine and 3-alkylpyridine
    1.
    发明授权
    Synthesis of pyridine and 3-alkylpyridine 失效
    吡啶和3-烷基吡啶的合成

    公开(公告)号:US5395940A

    公开(公告)日:1995-03-07

    申请号:US73213

    申请日:1993-06-07

    CPC分类号: C07D213/08 C07D213/10

    摘要: An improved process is provided for selectively synthesizing pyridine and 3-alkylpyridine in high yield by reacting ammonia and a carbonyl reactant selected from the group consisting of formaldehyde, an aldehyde containing from 2 to 4 carbon atoms, a ketone containing from 3 to 5 carbon atoms, and mixtures thereof under effective conditions in the presence of a catalyst comprising an active form of a synthetic porous crystalline MCM-49 or synthetic porous crystalline material characterized by an X-ray diffraction pattern including interplanar d-spacings at 12.36.+-.0.4, 11.03.+-.0.2, 8.83.+-.0.14, 6.18.+-.0.12, 6.00.+-.0.10, 4.06.+-.0.07, 3.91.+-.0.07, and 3.42.+-.0.06 Angstroms, e.g., MCM-22, and recovering from the resulting reaction mixture a product enriched in pyridine and 3-alkylpyridine.

    摘要翻译: 提供了一种改进的方法,用于通过使氨和选自甲醛,含有2至4个碳原子的醛,含3至5个碳原子的酮的羰基反应物选择性合成吡咯和3-烷基吡啶 ,以及它们在有效条件下的存在下的混合物,所述催化剂包含活性形式的合成多孔结晶MCM-49或合成多孔结晶材料,其特征在于包括在12.36 +/- 0.4的面间d-间距的X射线衍射图, 11.03 +/- 0.2,8.33 +/- 0.14,6.18 +/- 0.12,6.00 +/- 0.10,4.06 +/- 0.07,3.91 +/- 0.07和3.42 +/- 0.06埃,例如MCM-22, 并从所得反应混合物中回收富含吡啶和3-烷基吡啶的产物。

    Synthesis of large-pore
    5.
    发明授权
    Synthesis of large-pore 失效
    合成大孔

    公开(公告)号:US5094828A

    公开(公告)日:1992-03-10

    申请号:US636055

    申请日:1990-12-31

    申请人: Cynthia T-W. Chu

    发明人: Cynthia T-W. Chu

    摘要: This invention relates to a method for preparing large pore synthetic crystalline molecular sieve composition which may contain framework +3 valence element, e.g. aluminum, and one or more of a) +4 valence element, e.g. silicon, and b) +5 valence element, e.g. phosphorous. The method utilizes cyclohexylamine as directing agent in the forming mixture. The source of +3 valence element and, optionally +4 element is an alkoxide thereof, e.g., aluminum iso-propoxide. The resulting product may be used as a catalyst.

    摘要翻译: 本发明涉及一种制备大孔合成结晶分子筛组合物的方法,该组合物可含有框架+3价元素,例如 铝,以及一种或多种a)+4价元素,例如 硅,和b)+5价元素,例如 磷。 该方法利用环己胺作为成型混合物中的定向剂。 +3价元素和任选的+4元素的来源是其醇盐,例如异丙醇铝。 所得产物可用作催化剂。

    Catalyst and process for isoparaffin-olefin alkylation
    8.
    发明授权
    Catalyst and process for isoparaffin-olefin alkylation 失效
    用于异链烷烃烯烃烷基化的催化剂和方法

    公开(公告)号:US5354718A

    公开(公告)日:1994-10-11

    申请号:US42907

    申请日:1993-04-05

    IPC分类号: B01J29/04 B01J29/28

    CPC分类号: B01J29/04

    摘要: There are provided a catalyst, a method for making this catalyst, and a process for using this catalyst in the alkylation of an isoparaffin with an olefin to provide an alkylate. The catalyst may be made from an as-synthesized material which, upon calcination, is capable of generating zeolites designated MCM-22. The as-synthesized material is then combined with a binder material, such as alumina, by an extrusion process. The uncalcined bound material may then be ammonium exchanged, followed by a calcination treatment. The as-synthesized material may also be swollen with a suitable swelling agent, such as a cetyltrimethylammonium compound, prior to the binding process.

    摘要翻译: 提供催化剂,制备该催化剂的方法,以及使用该催化剂将异链烷烃与烯烃烷基化以提供烷基化物的方法。 催化剂可以由合成原料制成,其在煅烧时能够产生称为MCM-22的沸石。 然后通过挤出方法将合成后的材料与粘合剂材料如氧化铝组合。 然后将未煅烧的结合材料进行铵交换,随后进行煅烧处理。 在结合过程之前,合成的材料也可以用合适的溶胀剂如十六烷基三甲基铵化合物溶胀。

    Toluene disproportionation catalyzed by a zeolite containing framework
gallium
    10.
    发明授权
    Toluene disproportionation catalyzed by a zeolite containing framework gallium 失效
    由含沸石的骨架镓催化甲苯歧化

    公开(公告)号:US4922055A

    公开(公告)日:1990-05-01

    申请号:US279614

    申请日:1988-12-05

    申请人: Cynthia T-W. Chu

    发明人: Cynthia T-W. Chu

    IPC分类号: B01J29/40 C07C6/12

    摘要: Disproportionation of toluene with high conversion thereof to produce benzene and xylenes is accomplished by subjecting toluene to disproportionation conditions in the presence of a catalyst comprising a crystalline silicate or crystalline aluminosilicate zeolite containing framework gallium, said zeolite having a silica to alumina ratio of at least about 12 and a constraint index, as hereinafter defined, within the approximate range of 1 to 12.

    摘要翻译: 甲苯的高转化率的歧化产生苯和二甲苯是通过在含有结晶硅酸盐或结晶硅铝酸盐沸石的框架镓的催化剂存在下使歧化剂处理歧化条件完成的,所述沸石的二氧化硅与氧化铝之比至少约为 12和如下文所定义的约束指数在1至12的近似范围内。