Process for making alkyl pyrazines
    142.
    发明授权
    Process for making alkyl pyrazines 失效
    制备烷基吡嗪的方法

    公开(公告)号:US4855431A

    公开(公告)日:1989-08-08

    申请号:US457806

    申请日:1983-01-13

    CPC classification number: C07D241/12

    Abstract: The invention deals with a process for making a pyrazine from an aminoalkanol by passing it over a crystalline aluminosilicate zeolite having a silica to alumina ratio of at least 12 and a constraint index of 1 to 12 under conditions to dehydrate, dehydrogenate and cyclize it.

    Abstract translation: 本发明涉及一种通过使二氧化硅与氧化铝之比至少为12且约束指数为1至12的结晶硅铝酸盐沸石在脱水,脱氢和使其环化的条件下将其从氨基烷醇制备吡嗪的方法。

    Replacing boron with silicon in zeolite beta using SiCl.sub.4
    143.
    发明授权
    Replacing boron with silicon in zeolite beta using SiCl.sub.4 失效
    使用SiCl4在沸石β中用硅代替硼

    公开(公告)号:US4701313A

    公开(公告)日:1987-10-20

    申请号:US864746

    申请日:1986-05-13

    CPC classification number: B01J29/86 C01B35/1009 Y10S423/27

    Abstract: The present invention relates to siliceous zeolite catalysts produced by a method which includes selecting an amount of aluminum framework species to be retained in a zeolite catalyst product, and use of a silicon substitution treatment to replace more reactive framework species used to control aluminum framework concentration. This technique substantially preserves the selected amount of the aluminum framework species. The zeolite product obtained has high reactivity and stability.

    Abstract translation: 本发明涉及通过包括选择要保留在沸石催化剂产物中的铝骨架物质的量的方法制备的硅沸石催化剂,以及使用硅替代处理来替代用于控制铝骨架浓度的更多反应性骨架物质。 该技术基本上保留了选定量的铝框架物质。 获得的沸石产物具有高反应性和稳定性。

    Acid-catalyzed xylene isomerization
    144.
    发明授权
    Acid-catalyzed xylene isomerization 失效
    酸催化的二甲苯异构化

    公开(公告)号:US4620054A

    公开(公告)日:1986-10-28

    申请号:US787182

    申请日:1985-10-15

    CPC classification number: B01J29/40 B01J29/65 B01J29/70

    Abstract: This invention relates to acid catalysis of organic compound feedstock, e.g. isomerization of xylenes, over catalyst material treated in a special way for increasing the acid catalytic activity thereof. In particular, a novel catalyst activation process is followed to enhance the alpha value of high-silica zeolite catalyst by contact with an ammoniacal solution of an alkali metal aluminate under appropriate conditions of time, temperature and pH.

    Abstract translation: 本发明涉及有机化合物原料的酸催化,例如 在催化剂材料的异构化中,以特殊方式处理以增加其酸催化活性。 特别地,遵循新的催化剂活化方法,以通过在合适的时间,温度和pH条件下与碱金属铝酸盐的氨溶液接触来增强高硅石沸石催化剂的α值。

    Acid-catalyzed organic compound conversion
    145.
    发明授权
    Acid-catalyzed organic compound conversion 失效
    酸催化有机化合物转化

    公开(公告)号:US4605803A

    公开(公告)日:1986-08-12

    申请号:US787183

    申请日:1985-10-15

    CPC classification number: B01J29/40 B01J29/65 B01J29/70

    Abstract: This invention relates to acid catalysis of organic compound feedstock, e.g. conversion of oxygenates to hydrocarbons, over catalyst material treated in a special way for increasing the acid catalytic activity thereof. In particular, a novel catalyst activation process is followed to enhance the alpha value of high-silica zeolite catalyst by contact with an ammoniacal solution of an alkali metal aluminate under appropriate conditions of time, temperature and pH.

    Abstract translation: 本发明涉及有机化合物原料的酸催化,例如 在特定方式处理的催化剂材料中,含氧化合物转化为烃类,以增加其酸催化活性。 特别地,遵循新的催化剂活化方法,以通过在合适的时间,温度和pH条件下与碱金属铝酸盐的氨溶液接触来增强高硅石沸石催化剂的α值。

    Catalysis over activated high silica zeolites
    147.
    发明授权
    Catalysis over activated high silica zeolites 失效
    催化活性高的二氧化硅沸石

    公开(公告)号:US4579987A

    公开(公告)日:1986-04-01

    申请号:US733337

    申请日:1985-05-13

    CPC classification number: B01J29/40 B01J2229/40 B01J2229/42

    Abstract: A process is provided for converting feedstock comprising paraffins, olefins or mixtures thereof to product comprising C.sub.5 + hydrocarbons over a catalyst comprising a high silica crystalline zeolite which has been treated by steps of calcining the crystalline material, contacting the calcined material with solid aluminum fluoride, and converting the aluminum fluoride contacted material to hydrogen form.

    Abstract translation: 提供了一种方法,用于将包含链烷烃,烯烃或其混合物的原料转化为包含高二氧化硅结晶沸石的催化剂的包含C5 +烃的产物,该高二氧化硅结晶沸石已经通过煅烧结晶材料,煅烧材料与固体氟化铝接触的步骤,以及 将氟化铝接触的材料转化为氢形式。

    Catalysis over activated high silica zeolites
    148.
    发明授权
    Catalysis over activated high silica zeolites 失效
    催化活性高的二氧化硅沸石

    公开(公告)号:US4577048A

    公开(公告)日:1986-03-18

    申请号:US733340

    申请日:1985-05-13

    CPC classification number: B01J29/40 B01J2229/40 B01J2229/42

    Abstract: A process is provided for converting feedstock aromatic compounds by alkylation, transalkylation, disproportionation and/or isomerization over a catalyst comprising a high silica crystalline zeolite which has been treated by steps of calcining the zeolite, contacting the calcined zeolite with solid aluminum fluoride, and converting the aluminum fluoride contacted zeolite to hydrogen form.

    Abstract translation: 提供了一种通过在包含高二氧化硅结晶沸石的催化剂上进行烷基化,烷基转移,歧化和/或异构化来转化原料芳族化合物的方法,该高二氧化硅结晶沸石已经通过煅烧沸石的步骤进行处理,使煅烧的沸石与固体氟化铝接触, 氟化铝接触沸石形成氢。

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