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    Composition for dissolving sulfur and process for its use
    1.
    发明公开
    Composition for dissolving sulfur and process for its use 失效
    用于溶解硫的组合物及其使用方法

    公开(公告)号：EP0463475A3

    公开(公告)日：1992-03-25

    申请号：EP91109625.3

    申请日：1991-06-12

    Applicant: ELF ATOCHEM NORTH AMERICA, INC.

    Inventor： Lindstrom, Michael Jeffrey

    IPC: E21B37/06 ,  C01B17/033

    CPC classification number: C09K8/532 ,  Y10S507/932

    Abstract: A composition is disclosed for dissolving sulfur and preventing or removing sulfur plugs from sour gas and oil wells or other conduits through which sulfur bearing liquids flow which comprises a major proportion of a liquid or gaseous mercaptan, a minor proportion of a catalyst which is a substantially water-insoluble amine, and minor amount of an activator which is a compound of the formula:

    where R is hydrogen, alkyl, aryl or alkaryl and the alkyl moieties have from 1 to 24 carbon atoms, and x and y are independent values between 0 and 24 provided that x or y is at least 1; a method is also disclosed wherein said composition in an effective amount is injected into a conduit to prevent or remove sulfur plugging, and the composition containing dissolved sulfur is optionally recovered.

    Composition for dissolving sulfur and process for its use
    4.
    发明公开
    Composition for dissolving sulfur and process for its use 失效
    组合物用于溶解硫和方法供其使用。

    公开(公告)号：EP0463475A2

    公开(公告)日：1992-01-02

    申请号：EP91109625.3

    申请日：1991-06-12

    Applicant: ELF ATOCHEM NORTH AMERICA, INC.

    Inventor： Lindstrom, Michael Jeffrey

    IPC: E21B37/06 ,  C01B17/033

    CPC classification number: C09K8/532 ,  Y10S507/932

    Abstract: A composition is disclosed for dissolving sulfur and preventing or removing sulfur plugs from sour gas and oil wells or other conduits through which sulfur bearing liquids flow which comprises a major proportion of a liquid or gaseous mercaptan, a minor proportion of a catalyst which is a substantially water-insoluble amine, and minor amount of an activator which is a compound of the formula:

    where R is hydrogen, alkyl, aryl or alkaryl and the alkyl moieties have from 1 to 24 carbon atoms, and x and y are independent values between 0 and 24 provided that x or y is at least 1; a method is also disclosed wherein said composition in an effective amount is injected into a conduit to prevent or remove sulfur plugging, and the composition containing dissolved sulfur is optionally recovered.

    Abstract translation: 一种组合物，是圆盘游离缺失用于溶解硫和预防或从酸气和油井或通过其硫轴承液体的其它导管中除去硫塞流，其包括液态或气态硫醇的主要部分，一个催化剂中所有的较小比例，其是一个基本上 水不溶性胺和活化剂的所有的少量它是下式的化合物：其中R是氢，烷基，芳基或烷芳基和烷基部分具有从1到24个碳原子，并且x和y独立 提供0和24之间的值做x或y为至少1; 因此，一个方法是在有效量的游离缺失worin所述组合物在光盘被注入到导管，以防止或除去硫堵塞，以及含有溶解的硫的组合物任选地回收。

    Process for producing alkylthio- and arylthio-substituted carboxylic acids and their thioesters
    7.
    发明公开
    Process for producing alkylthio- and arylthio-substituted carboxylic acids and their thioesters 失效
    一种制备烷硫基和芳硫基 - 取代的羧酸和它们的酯的方法。

    公开(公告)号：EP0446661A1

    公开(公告)日：1991-09-18

    申请号：EP91102339.8

    申请日：1991-02-19

    Applicant: ELF ATOCHEM NORTH AMERICA, INC.

    Inventor： Buchholz, Bernard ,  Hager, Robert Bonner ,  Lindstrom, Michael Jeffrey

    IPC: C07C319/14 ,  C07C323/52

    CPC classification number: C07C319/14

    Abstract: A process is provided for producing alkylthio-substituted carboxylic acids and arylthio-substituted carboxylic acids and their corresponding alkylthio-substituted thioesters and arylthio-substituted thioesters. The process comprises reacting a mercaptan with a lactone in the presence of an acidic catalyst at temperatures of about 100°C to about 350°C. The process for preparing the thio-substituted carboxylic acids and thio-substituted thioesters may be a continuous process or a batch process.

    Abstract translation: 提供了一种生产烷硫基substituiertem羧酸和羧酸芳硫基 - substituiertem和它们相应的烷硫基 - substituiertem硫酯和芳硫基 - substituiertem硫酯的方法。 该方法包括在约100℃的温度起反应在酸性催化剂的存在下，内酯硫醇至约350℃的方法，用于制备硫代羧酸和substituiertem硫代substituiertem硫酯可以是一个连续的过程或 批处理。

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