Methods for forming amorphous ultra-high molecular weight polyolefins for use as drag reducing agents
    24.
    发明申请
    Methods for forming amorphous ultra-high molecular weight polyolefins for use as drag reducing agents 有权
    用于形成用作减阻剂的无定形超高分子量聚烯烃的方法

    公开(公告)号:US20020173600A1

    公开(公告)日:2002-11-21

    申请号:US10047763

    申请日:2002-01-15

    IPC分类号: C08F004/06

    摘要: The present invention is directed to improved drag reducing agents and methods of forming improved drag reducing agents comprising the steps of isomerizing olefin monomers to form isomerized olefin monomers, polymerizing the isomerized olefin monomers in the presence of at least one catalyst to form a polyolefin drag reducing agent having unexpectedly superior drag reduction properties when combined with liquid hydrocarbons, such as viscous crude oil. Therefore, the drag reducing agents of the present invention may be introduced into conduits, such as pipelines, to increase the flow of the hydrocarbons through the conduit.

    摘要翻译: 本发明涉及改进的减阻剂和形成改进的减阻剂的方法,其包括使烯烃单体异构化以形成异构化烯烃单体的步骤,在至少一种催化剂存在下使异构化的烯烃单体聚合以形成聚烯烃减阻 当与液体烃如粘性原油组合时,其具有意想不到的优异的阻力降低性能。 因此,本发明的减阻剂可以被引入诸如管道的管道中,以增加烃通过导管的流动。

    Selective isopropylation of cumene to meta-diisopropylbenzene
    25.
    发明授权
    Selective isopropylation of cumene to meta-diisopropylbenzene 失效
    将异丙基苯选择性异丙基化成间二异丙基苯

    公开(公告)号:US4547604A

    公开(公告)日:1985-10-15

    申请号:US576803

    申请日:1984-02-06

    申请人: George A. Olah

    发明人: George A. Olah

    摘要: Resorcinol is prepared in high yield and purity by an improved process through superacid (such as perfluorinated alkanesulfonic acids of one to eighteen carbon atoms or polymeric perfluorinated resinsulfonic acids, such as acidified Nafion-H, catalyzed cleavage rearrangement reaction of meta-bis(2-hydroperoxy-2-propyl)benzene (meta-diisopropylbenzene dihydroperoxide). Part of the process is the preparation of needed meta-diisopropylbenzene in high purity (98-100%) substantially free of other isomers by treating any mixture of diisopropylbenzenes with an excess of anhydrous hydrogen fluoride or a perfluorinated alkanesulfonic acid of one to eighteen carbon atoms and a Lewis acid fluoride, or by alkylating (transalkylating) cumene with a propyl alkylating agent in the aforementioned superacid systems.

    摘要翻译: 间苯二酚通过超强酸(例如1至18个碳原子的全氟化烷烃磺酸或聚合全氟磺酸磺酸,如酸化Nafion-H,间双(2- 氢过氧-2-丙基)苯(间二异丙基苯二氢过氧化物)部分方法是通过将任何二异丙基苯的混合物与过量的二异丙苯反应来制备所需的高纯度(98-100%)的间二异丙基苯,基本上不含其它异构体 无水氟化氢或1至18个碳原子的全氟化烷烃磺酸和路易斯酸氟化物,或通过在上述超酸体系中烷基化(烷基转移)枯烯与丙基烷基化剂。