Production of para-propylbenzaldehyde
    4.
    发明授权
    Production of para-propylbenzaldehyde 有权
    对甲基苯甲醛的生产

    公开(公告)号:US09567278B2

    公开(公告)日:2017-02-14

    申请号:US14762677

    申请日:2014-03-13

    发明人: Tse-Chong Wu

    IPC分类号: C07C45/00 C07C45/49

    CPC分类号: C07C45/49 C07C47/542

    摘要: The present invention is a process for preparing a 4-alkylbenzaldehyde (para-alkylbenzaldehyde). An alkylbenzene, solvated in a solvent comprising at least one aliphatic solvent having in the range of 3 to 15 carbons, is reacted with carbon monoxide, in the presence of an aluminum halide and a hydrogen halide acid. Disproportionation is reduced and proportion of para-alkyl-benzaldehyde is increased with respect to other methods.

    摘要翻译: 本发明是制备4-烷基苯甲醛(对 - 烷基苯甲醛)的方法。 在包含至少一种具有3至15个碳原子的脂族溶剂的溶剂中溶剂化的烷基苯与一氧化碳在卤化铝和卤化氢存在下反应。 相对于其他方法,歧化减少,对 - 烷基 - 苯甲醛的比例增加。

    CONTROL OF SUSTAINED CASING PRESSURE IN WELLBORE ANNULI
    6.
    发明申请
    CONTROL OF SUSTAINED CASING PRESSURE IN WELLBORE ANNULI 审中-公开
    控制井筒内固定压力

    公开(公告)号:US20160289527A1

    公开(公告)日:2016-10-06

    申请号:US15038109

    申请日:2014-12-09

    IPC分类号: C09K8/035

    CPC分类号: C09K8/035

    摘要: This invention provides a method for minimizing or relieving a sustained casing pressure in an annulus of a wellbore, where the annulus contains a first fluid having a density. The method comprises introducing a second fluid into the annulus. The second fluid has a density greater than the density of the first fluid and the second fluid is immiscible with the first fluid. The method is characterized in that the second fluid comprises at least one halogen-containing organic compound. The halogen-containing organic compound has one or more halogen atoms selected from fluorine, chlorine, bromine, and iodine, with the proviso that at least one of the halogen atoms is chlorine, bromine, or iodine.

    摘要翻译: 本发明提供了一种用于最小化或减轻井眼环形中的持续套管压力的方法,其中环形空间包含具有密度的第一流体。 该方法包括将第二流体引入环空中。 第二流体的密度大于第一流体的密度,第二流体与第一流体不混溶。 该方法的特征在于第二流体包含至少一种含卤素的有机化合物。 含卤素的有机化合物具有一个或多个选自氟,氯,溴和碘的卤素原子,条件是至少一个卤素原子是氯,溴或碘。

    PRODUCTION OF PARA-PROPYLBENZALDEHYDE
    10.
    发明申请
    PRODUCTION OF PARA-PROPYLBENZALDEHYDE 有权
    对苯二甲酸乙二酯的生产

    公开(公告)号:US20150368175A1

    公开(公告)日:2015-12-24

    申请号:US14762677

    申请日:2014-03-13

    发明人: Tse-Chong Wu

    IPC分类号: C07C45/49

    CPC分类号: C07C45/49 C07C47/542

    摘要: The present invention is a process for preparing a 4-alkylbenzaldehyde (para-alkylbenzaldehyde). An alkylbenzene, solvated in a solvent comprising at least one aliphatic solvent having in the range of 3 to 15 carbons, is reacted with carbon monoxide, in the presence of an aluminum halide and a hydrogen halide acid. Disproportionation is reduced and proportion of para-alkyl-benzaldehyde is increased with respect to other methods.

    摘要翻译: 本发明是制备4-烷基苯甲醛(对 - 烷基苯甲醛)的方法。 在包含至少一种具有3至15个碳原子的脂族溶剂的溶剂中溶剂化的烷基苯与一氧化碳在卤化铝和卤化氢存在下反应。 相对于其他方法,歧化减少,对 - 烷基 - 苯甲醛的比例增加。