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14 条记录 (耗时 0.029 秒)

    Process of preparing cyclopentadiene and substituted derivatives thereof
    1.
    发明授权
    Process of preparing cyclopentadiene and substituted derivatives thereof 失效
    制备环戊二烯及其取代衍生物的方法

    公开(公告)号：US5414173A

    公开(公告)日：1995-05-09

    申请号：US173533

    申请日：1993-12-22

    申请人： Juan M. Garces ,  Guo-shuh J. Lee ,  David R. Wilson

    发明人： Juan M. Garces ,  Guo-shuh J. Lee ,  David R. Wilson

    IPC分类号： C07C1/24

    CPC分类号： C07C1/24 ,  C07C2101/10 ,  C07C2102/08 ,  C07C2529/83 ,  C07C2529/85

    摘要： A process of preparing cyclopentadiene or substituted cyclopentadienes, such as tetramethylcyclopentadiene. The process involves contacting under reaction conditions cyclopentenol or a substituted cyclopentenol with a catalyst selected from (1) crystalline and amorphous aluminum phosphates, (2) aluminophosphate molecular sieves, and (3) silicoaluminophosphate molecular sieves. The process produces cyclopentadienes in high isolated yields.

    摘要翻译： 制备环戊二烯或取代的环戊二烯如四甲基环戊二烯的方法。 该方法包括在反应条件下使环戊烯醇或取代的环戊烯醇与选自（1）结晶和无定形磷酸铝，（2）磷酸铝分子筛和（3）硅铝磷酸盐分子筛的催化剂接触。 该方法产生高分离产率的环戊二烯。

    Separation of ethyltoluene isomers
    5.
    发明授权
    Separation of ethyltoluene isomers 失效
    乙基甲苯异构体的分离

    公开(公告)号：US4996388A

    公开(公告)日：1991-02-26

    申请号：US558355

    申请日：1990-07-26

    申请人： Michael M. Olken ,  Guo-shuh J. Lee ,  Juan M. Garces

    发明人： Michael M. Olken ,  Guo-shuh J. Lee ,  Juan M. Garces

    IPC分类号： C07C7/13

    CPC分类号： C07C7/13

    摘要： A process of separating the ortho, meta and para isomers of ethyltoluene. One aspect employs a ferrierite absorbent which separates the para isomer from a mixture of the same and at least one of the meta and ortho isomers. A second aspect employs a silicalite absorbent which separates the ortho isomer from a mixture of the same and the meta isomer. A third aspect combines the ferrierite and silicalite absorbents in sequence to separate a mixture of the ortho, meta and para isomers into the essentially pure compounds.

    摘要翻译： 分离乙基甲苯的邻位，间位和对位异构体的方法。 一方面使用镁碱沸石吸收剂，其将对位异构体与其相同的元素和邻位异构体中的至少一种的混合物分离。 第二方面采用硅质吸收剂，其将邻位异构体与其相同的混合物和间位异构体分离。 第三方面依次将镁碱沸石和硅沸石吸收剂组合，将邻位异构体，间位异构体和对位异构体的混合物分离成基本上纯的化合物。

    Alkylation of polycyclic aromatic compounds to alkylates enriched in the linear- and near linear-substituted isomers
    8.
    发明授权
    Alkylation of polycyclic aromatic compounds to alkylates enriched in the linear- and near linear-substituted isomers 失效
    将多环芳族化合物烷基化成富含线性和近似直链取代的异构体的烷基化物

    公开(公告)号：US5015797A

    公开(公告)日：1991-05-14

    申请号：US458036

    申请日：1989-12-28

    申请人： Guo-shuh J. Lee ,  Juan M. Garces ,  Joseph J. Maj

    发明人： Guo-shuh J. Lee ,  Juan M. Garces ,  Joseph J. Maj

    IPC分类号： B01J29/18 ,  C07C2/66 ,  C07C2/86 ,  C07C37/14 ,  C07C39/17 ,  C07C41/30

    CPC分类号： C07C41/30 ,  B01J29/18 ,  C07C2/66 ,  C07C2/864 ,  C07C37/14 ,  C07C39/17 ,  C07C2101/14 ,  C07C2529/18

    摘要： Polycyclic aromatic compounds, such as biphenyl, are alkylated with an alkylating agent, such as propylene, in the presence of an acidic mordenite zeolite catalyst under conditions sufficient to produce a mixture of substituted polycyclic aromatic compounds enriched in the linear- and near linear-alkylated isomers, such as p,p'- and p,m'-di(isopropyl)biphenyl. The novel acidic mordenite catalyst is characterized by its silica/alumina molar ratio, its porosity, and a Symmetry Index. Mixtures of the p,p'- and p,m'-disubstituted isomers of polycyclic aromatic compounds are useful as monomers in the preparation of improved thermotropic, liquid crystal polymers.

    摘要翻译： 在酸性丝光沸石催化剂存在下，在足以产生富含线性和近似直链烷基化的取代多环芳香族化合物的混合物的条件下，将多环芳族化合物如联苯在烷基化剂如丙烯中烷基化 异构体，如p，p'-和p，m'-二（异丙基）联苯。 新型酸性丝光沸石催化剂的特征在于其二氧化硅/氧化铝摩尔比，孔隙率和对称指数。 多环芳族化合物的p，p'-和p，m'-二取代异构体的混合物可用作制备改进的热致液晶聚合物的单体。

    Alkylation of aromatic compounds to alkylates enriched in the linear-substituted isomers
    9.
    发明授权
    Alkylation of aromatic compounds to alkylates enriched in the linear-substituted isomers 失效
    将芳族化合物烷基化成富含直链取代的异构体的烷基化物

    公开(公告)号：US5004841A

    公开(公告)日：1991-04-02

    申请号：US323530

    申请日：1989-03-14

    申请人： Guo-shuh J. Lee ,  Juan M. Garces ,  Joseph J. Maj ,  Stephen C. Rocke

    发明人： Guo-shuh J. Lee ,  Juan M. Garces ,  Joseph J. Maj ,  Stephen C. Rocke

    IPC分类号： B01J29/18 ,  C07C2/66 ,  C07C2/86 ,  C07C37/14 ,  C07C39/17 ,  C07C41/30

    CPC分类号： C07C41/30 ,  B01J29/18 ,  C07C2/66 ,  C07C2/864 ,  C07C37/14 ,  C07C2101/14 ,  C07C2529/18

    摘要： Aromatic compounds, such as benzene or biphenyl, are alkylated with an alkylating agent having from one to eight carbons atoms, such as propylene, in the presence of an acidic mordenite zeolite catalyst under conditions sufficient to produce a mixture of substituted aromatic compounds enriched in the linear alkylated isomers, such as p-diisopropylbenzene or p,p'-di(isopropyl)biphenyl, respectively. The novel acidic mordenite catalyst is characterized by its silica/alumina molar ratio, its porosity, and a Symmetry Index. The p,p'-disubstituted isomers of aromatic compounds are useful as monomers in the preparation of thermotropic, liquid crystal polymers.

    摘要翻译： 在酸性丝光沸石催化剂存在下，芳族化合物如苯或联苯在具有1至8个碳原子的烷基化剂如丙烯的条件下进行烷基化，所述条件足以产生富集的芳族化合物的混合物 线性烷基化异构体，如对二异丙苯或对，对 - 二（异丙基）联苯。 新型酸性丝光沸石催化剂的特征在于其二氧化硅/氧化铝摩尔比，孔隙率和对称指数。 芳族化合物的p，p'-二取代异构体可用作制备热致液晶聚合物的单体。