Process for preparing a modified alkylaryl
    34.
    发明授权
    Process for preparing a modified alkylaryl 失效
    通过吸附分离制备表面活性剂的方法及其制备方法

    公开(公告)号:US06525233B1

    公开(公告)日:2003-02-25

    申请号:US09479364

    申请日:2000-01-07

    IPC分类号: C07C264

    摘要: Processes for making particularly branched, especially monomethyl-branched or nongeminal dimethyl-branched surfactants used in cleaning products; preferred processes comprising particular combinations of two or more adsorptive separation steps and, more preferably, particular alkylation steps; products of such processes, including certain modified alkylbenzenes, modified alkylbenzenesulfonate surfactants, and consumer cleaning products, especially laundry detergents, containing them. Preferred processes herein more specifically use specific, unconventional sequences of sorptive separation steps to secure certain branched hydrocarbon fractions which are used in further process steps as alkylating agents for arenes or for other useful surfactant-making purposes. Surprisingly, such fractions can even be derived from effluents from current linear alkylbenzene manufacture.

    摘要翻译: 用于制造特别是支链的,特别是用于清洁产品中的单甲基支链或非农业二甲基支链表面活性剂的方法; 优选的方法包括两个或多个吸附分离步骤的特定组合,更优选特定的烷基化步骤; 这些方法的产物,包括某些改性烷基苯,改性烷基苯磺酸盐表面活性剂,以及含有它们的消费者清洁产品,特别是衣物洗涤剂。 本文优选的方法更具体地使用吸附分离步骤的特定的非常规序列,以确保在进一步的工艺步骤中使用的某些支链烃馏分作为芳烃的烷基化剂或其它有用的表面活性剂制备目的。 令人惊讶的是,这些馏分甚至可以从目前的直链烷基苯生产的流出物得到。