Mixtures of alkyl and alkenyl succinic acids and polymer acids
    1.
    发明授权
    Mixtures of alkyl and alkenyl succinic acids and polymer acids 失效
    烷基和链烯基琥珀酸和聚合物酸的混合物

    公开(公告)号:US4508637A

    公开(公告)日:1985-04-02

    申请号:US125726

    申请日:1980-02-28

    摘要: This invention relates to a composition comprising:(1) polymer acids such as dimer or trimer acids and mixtures thereof, and(2) an alkyl succinic acid or the anhydride thereof, and the weight ratios of (1) to (2) being less than about 3 to 1; and to the use thereof as a corrosion inhibitor.Preferably the weight ratio of (1) to (2) is about 2 to 1 or less and the polymer acid is predominantly trimer acid.

    摘要翻译: 本发明涉及一种组合物,其包含:(1)聚合酸如二聚体或三聚酸及其混合物,和(2)烷基琥珀酸或其酸酐,(1)至(2)的重量比较小 比约3比1; 以及作为缓蚀剂的用途。 优选(1)至(2)的重量比为约2:1或更小,聚合酸主要为三聚酸。

    Organo-sulfur compounds as high temperature antifoulants
    2.
    发明授权
    Organo-sulfur compounds as high temperature antifoulants 失效
    有机硫化合物作为高温防污剂

    公开(公告)号:US4116812A

    公开(公告)日:1978-09-26

    申请号:US813193

    申请日:1977-07-05

    IPC分类号: C10G9/16 C08K5/36

    CPC分类号: C10G9/16

    摘要: This invention relates to a process of inhibiting or preventing fouling (i.e., preventing the adhesion of deposits from hydrocarbon on surfaces) at elevated temperatures which comprises adding to hydrocarbon an antifouling (preventing) amount of an organo-sulfur compounds having a high sulfur content. In the preferred embodiment, the organo-sulfur compound has at least 5% sulfur. An embodiment is a heterocyclic compound, a dithiole-thione. These organo sulfur compounds are particularly effective at elevated temperatures of at least about 500.degree. F.

    摘要翻译: 本发明涉及在高温下抑制或防止结垢(即,防止表面上的烃沉积物粘附)的方法,其包括向烃中加入防污(预防)量的具有高硫含量的有机硫化合物。 在优选的实施方案中,有机硫化合物具有至少5%的硫。 一个实施方案是杂环化合物,二硫代硫酮。 这些有机硫化合物在至少约500°F的升高的温度下是特别有效的。

    Corrosion inhibitors
    5.
    发明授权
    Corrosion inhibitors 失效
    腐蚀抑制剂

    公开(公告)号:US4253876A

    公开(公告)日:1981-03-03

    申请号:US122201

    申请日:1980-02-19

    IPC分类号: C23F11/10 C09D5/08

    CPC分类号: C23F11/10

    摘要: This invention relates to a composition comprising(1) an alkenyl or alkyl succinic acid or the anhydride thereof; and(2) a triester of about 3 moles of an alkenyl or alkyl succinic acid or the anhydride thereof and about 1 mole of a trialkanolamine;and to the use thereof as a corrosion inhibitor.

    摘要翻译: 本发明涉及包含(1)烯基或烷基琥珀酸或其酸酐的组合物; 和(2)约3摩尔烯基或烷基琥珀酸或其酸酐和约1摩尔三链烷醇胺的三酯; 以及作为缓蚀剂的用途。