Aerobic Oxidative Esterification of Sugar-Derived 1,4-Disubstituted Benzene for Direct Synthesis of Dimethylterephthalate
    16.
    发明申请
    Aerobic Oxidative Esterification of Sugar-Derived 1,4-Disubstituted Benzene for Direct Synthesis of Dimethylterephthalate 审中-公开
    糖衍生的1,4-二取代苯的有氧氧化酯化用于直接合成对苯二甲酸二甲酯

    公开(公告)号:US20160115113A1

    公开(公告)日:2016-04-28

    申请号:US14877545

    申请日:2015-10-07

    Abstract: This invention relates to a dimethylterephthalate production process comprising reacting substituted furan with ethylene under cycloaddition reaction conditions and in the presence of a cycloaddition catalyst to produce a bicyclic ether, dehydrating the bicyclic ether to produce a substituted phenyl, dissolving said substituted phenyl in methanol, and oxidizing and esterifying the substituted phenyl in the presence of an oxidative esterification catalyst to form dimethylterephthalate. Importantly, the process does not include oxidizing the substituted phenyl to form terephthalic acid.

    Abstract translation: 本发明涉及对苯二甲酸二甲酯生产方法,其包括在环加成反应条件下和在环加成催化剂存在下使取代的呋喃与乙烯反应以产生双环醚,使双环醚脱水以产生取代的苯基,将所述取代的苯基溶解在甲醇中, 在氧化酯化催化剂的存在下氧化和酯化取代的苯基以形成对苯二甲酸二甲酯。 重要的是,该方法不包括氧化取代的苯基以形成对苯二甲酸。

    Process for separating methylcyclopentanone from cyclohexanone
    17.
    发明授权
    Process for separating methylcyclopentanone from cyclohexanone 有权
    甲基环戊酮与环己酮分离的方法

    公开(公告)号:US09174908B2

    公开(公告)日:2015-11-03

    申请号:US14421408

    申请日:2013-09-06

    Abstract: In a process for separating methylcyclopentanone from a mixture comprising methylcyclopentanone and cyclohexanone, a feedstock comprising cyclohexanone, methylcyclopentanone, water at a concentration of at least 0.10 wt %, and optionally phenol is fed into a fractionation distillation column, where a lower effluent rich in cyclohexanone and an upper effluent rich in methylcyclopentanone are produced. Due to the inclusion of water at a relatively high concentration in the feedstock, efficient separation of methylcyclopentanone is achieved. In certain particularly desirable embodiments, the lower effluent is substantially free of methylcyclopentanone. The thus produced cyclohexanone may be used to make, e.g., high-purity caprolactam, which, in turn, may be used for fabricating, e.g., high-performance nylon-6 material.

    Abstract translation: 在从甲基环戊酮和环己酮的混合物中分离甲基环戊酮的方法中,将包含环己酮,甲基环戊酮,浓度至少为0.10wt%的水和任选的苯酚的原料进料到分馏塔中,其中富含环己酮的较低流出物 并产生富含甲基环戊酮的上部流出物。 由于原料中含有较高浓度的水,因此可以有效分离甲基环戊酮。 在某些特别理想的实施方案中,较低的流出物基本上不含甲基环戊酮。 由此生产的环己酮可用于制备例如高纯度己内酰胺,其又可用于制造例如高性能尼龙-6材料。

    Process for Separating Methylcyclopentanone from Cyclohexanone
    18.
    发明申请
    Process for Separating Methylcyclopentanone from Cyclohexanone 有权
    从环己酮中分离甲基环戊酮的方法

    公开(公告)号:US20150218076A1

    公开(公告)日:2015-08-06

    申请号:US14421408

    申请日:2013-09-06

    Abstract: In a process for separating methylcyclopentanone from a mixture comprising methylcyclopentanone and cyclohexanone, a feedstock comprising cyclohexanone, methylcyclopentanone, water at a concentration of at least 0.10 wt %, and optionally phenol is fed into a fractionation distillation column, where a lower effluent rich in cyclohexanone and an upper effluent rich in methylcyclopentanone are produced. Due to the inclusion of water at a relatively high concentration in the feedstock, efficient separation of methylcyclopentanone is achieved. In certain particularly desirable embodiments, the lower effluent is substantially free of methylcyclopentanone. The thus produced cyclohexanone may be used to make, e.g., high-purity caprolactam, which, in turn, may be used for fabricating, e.g., high-performance nylon-6 material.

    Abstract translation: 在从甲基环戊酮和环己酮的混合物中分离甲基环戊酮的方法中,将包含环己酮,甲基环戊酮,浓度至少为0.10wt%的水和任选的苯酚的原料进料到分馏塔中,其中富含环己酮的较低流出物 并产生富含甲基环戊酮的上部流出物。 由于原料中含有较高浓度的水,因此可以有效分离甲基环戊酮。 在某些特别理想的实施方案中,较低的流出物基本上不含甲基环戊酮。 由此生产的环己酮可用于制备例如高纯度己内酰胺,其又可用于制造例如高性能尼龙-6材料。

    Dealkylation process
    19.
    发明授权
    Dealkylation process 有权
    脱烷基化方法

    公开(公告)号:US09067854B2

    公开(公告)日:2015-06-30

    申请号:US14473464

    申请日:2014-08-29

    Abstract: In a process for dealkylating a poly-alkylated aromatic compound, a feed comprising at least one poly-alkylated aromatic compound selected from polypropylbenzene, polybutylbenzene, and polycyclohexylbenzene is introduced into a reaction zone. The feed is then contacted in the reaction zone with an acid catalyst under conditions effective to dealkylate at least a portion of the poly-alkylated aromatic compound and produce a first reaction product comprising at least one mono-alkylated aromatic compound.

    Abstract translation: 在聚烷基化芳族化合物的脱烷基化方法中,将包含至少一种选自聚丙基苯,聚丁基苯和聚环己基苯的多烷基化芳族化合物的进料引入反应区。 然后在有效使至少一部分聚烷基化芳族化合物脱烷基化的条件下,将该进料在反应区中与酸催化剂接触,并产生包含至少一种单烷基化芳族化合物的第一反应产物。

    Dealkylation Process
    20.
    发明申请
    Dealkylation Process 有权
    脱烷基化方法

    公开(公告)号:US20140371499A1

    公开(公告)日:2014-12-18

    申请号:US14473464

    申请日:2014-08-29

    Abstract: In a process for dealkylating a poly-alkylated aromatic compound, a feed comprising at least one poly-alkylated aromatic compound selected from polypropylbenzene, polybutylbenzene, and polycyclohexylbenzene is introduced into a reaction zone. The feed is then contacted in the reaction zone with an acid catalyst under conditions effective to dealkylate at least a portion of the poly-alkylated aromatic compound and produce a first reaction product comprising at least one mono-alkylated aromatic compound.

    Abstract translation: 在聚烷基化芳族化合物的脱烷基化方法中,将包含至少一种选自聚丙基苯,聚丁基苯和聚环己基苯的多烷基化芳族化合物的进料引入反应区。 然后在有效使至少一部分聚烷基化芳族化合物脱烷基化的条件下,将该进料在反应区中与酸催化剂接触,并产生包含至少一种单烷基化芳族化合物的第一反应产物。

Patent Agency Ranking