Method for preparation of liquid olefin polymers
    3.
    发明授权
    Method for preparation of liquid olefin polymers 失效
    液体烯烃聚合物的制备方法

    公开(公告)号:US3997623A

    公开(公告)日:1976-12-14

    申请号:US634074

    申请日:1975-11-21

    CPC分类号: C08F10/14

    摘要: When an olefin having 6 or more carbon atoms is polymerized in the presence of a mixture of a polyhydric alcohol derivative and an aluminum halide, said derivative being obtained by replacing hydrogen atoms of all the hydroxyl groups of polyhydric alcohol either by acyl groups exclusively or by acyl groups and alkyl groups, both of said groups having 1 to 20 carbon atoms (in which mixture the amount of said aluminum halide is 1.1 to 2.8 moles per 1 ester bond of said polyhydric alcohol derivative), there can be obtained liquid olefin polymers having various mean molecular weights at a high yield.

    摘要翻译: 当在多元醇衍生物和卤化铝的混合物存在下使具有6个或更多个碳原子的烯烃聚合时,所述衍生物是通过专门地或通过酰基独立地取代多元醇的全部羟基的氢原子或由 酰基和烷基,所述基团具有1至20个碳原子(其中所述卤化铝的量为所述多元醇衍生物的每1个酯键为1.1至2.8摩尔的混合物),可以获得具有 各种平均分子量高产。

    Micellar slug for oil recovery
    10.
    发明授权
    Micellar slug for oil recovery 失效
    用于油回收的胶束

    公开(公告)号:US4597879A

    公开(公告)日:1986-07-01

    申请号:US480768

    申请日:1983-03-31

    IPC分类号: C09K8/584 E21B43/22

    CPC分类号: C09K8/584 Y10S507/938

    摘要: A micellar slug for use in the recovery of oil, the slug containing a hydrocarbon, an aqueous medium, a surfactant, and a cosurfactant. The surfactant contains as an essential component an internal olefin sulfonate having 10 to 26 carbon atoms, a hydroxyalkane sulfonate content of not less than about 40% by weight and a disulfonate content of not more than 20% by weight and said internal olefin sulfonate being desired from the sulfonation of an internal olefin having the general formula:R--CH.dbd.CH--R'wherein R is a straight- or branched-chain alkyl group having 4 to 23 carbon atoms, R' is a straight- or branched-chain alkyl group having 1 to 12 carbon atoms provided that the total carbon atom numbers of R and R' is 8 to 24 and 50% by weight or more of the internal olefins is that having R' with 1 to 4 carbon atoms. This micellar slug has an excellent capability for decreasing an interfacial tension between oil and water and an excellent salinity tolerance and hard-water resistance. Furthermore, the micro-emulsion can be formed from this micellar slug in a wide composition range.

    摘要翻译: 用于回收油的胶束塞,含有烃的水泥,水性介质,表面活性剂和辅助表面活性剂。 表面活性剂作为必要组分含有具有10至26个碳原子的内部烯烃磺酸盐,羟基烷烃磺酸盐含量不低于约40重量%,二磺酸盐含量不超过20重量%,所需内部烯烃磺酸盐是所需的 从具有以下通式的内部烯烃的磺化:R-CH = CH-R'其中R是具有4至23个碳原子的直链或支链烷基,R'是直链或支链烷基 具有1至12个碳原子的基团,条件是R和R'的总碳原子数为8至24,并且50重量%或更多的内烯是具有1至4个碳原子的R'。 该胶束颗粒具有降低油和水之间的界面张力和优异的耐盐性和耐硬水性的极好的能力。 此外,微乳液可以在宽的组成范围内由该胶束块形成。