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    • 1. 发明授权
    • Process for the deoiling of olefin sulfonates
    • 烯烃磺酸盐去油的方法
    • US4579690A
    • 1986-04-01
    • US687108
    • 1984-12-28
    • Larry W. Payne
    • Larry W. Payne
    • B01D11/04C07C67/00C07C301/00C07C303/06C07C303/42C07C303/44C07C309/20C07C139/14
    • C07C303/42
    • An improved process for the solvent extraction of free oil from C.sub.8 to C.sub.24 olefin sulfonation products, which comprises steps for contacting an olefin sulfonation product containing free oil with an alkane-based extraction solvent and phase separating the resulting mixture into an extract phase enriched in free oil and a raffinate phase enriched in sulfonated matter. The invention is particularly directed to the use in such a process of an extraction solvent which comprises one or more C.sub.4 to C.sub.9 alkanes and between about 5 and 35 percent by weight of dimethyl ketone. Deoiled sulfonation products are known for utility as components of detergent formulations for industrial, household and personal care uses.
    • 用于从C 8至C 24烯烃磺化产物溶剂萃取游离油的改进方法,其包括使含有游离油的烯烃磺化产物与基于烷烃的萃取溶剂接触并将所得混合物相分离成富含游离的萃取相的步骤 油和富集磺化物质的萃余液相。 本发明特别涉及在这种包含一种或多种C 4至C 9烷烃和约5-35%重量二甲基酮的萃取溶剂的方法中的用途。 已知脱水磺化产品用作工业,家庭和个人护理用途的洗涤剂配方的组分。
    • 4. 发明授权
    • Method for the production of bleached, low-sultone olefin sulfonates
    • 生产漂白低低聚烯烃烯烃磺酸盐的方法
    • US4197255A
    • 1980-04-08
    • US892423
    • 1978-03-31
    • Horst BaumannManfred Teupel
    • Horst BaumannManfred Teupel
    • C07C303/44C07C139/14
    • C07C309/00
    • Aqueous solutions of alkali metal C.sub.8-22 .alpha.-olefin sulfonates of light color and of low sultone content are prepared rapidly and at moderate temperatures by:(a) reacting a C.sub.8-22 .alpha.-olefin with gaseous sulfur trioxide thereby forming a crude sulfonation product mixture containing C.sub.8-22 olefin sulfonic acids, with a content of sultones,(b) bleaching said crude sulfonation product mixture at 30.degree. C. to 80.degree. C. for 10 to 60 minutes with an aqueous alkaline bleaching solution at a pH of at least 8,(c) heating said diluted bleached sulfonation product mixture containing excess alkali to a temperature of from 140.degree. C. to 170.degree. C. until the sultone content of said sulfonation product mixture is less than 100 ppm, and(d) recovering said alkali metal C.sub.8-22 .alpha.-olefin sulfonates of light color and of low sultone content. A decrease in the sultone content from as much as 650,000 ppm to less than 50 ppm is possible by the method.
    • 通过以下方式快速和中等温度地制备浅色和低磺内酯含量的碱金属C8-22α-烯烃磺酸盐水溶液:(a)使C8-22α-烯烃与气态三氧化硫反应,从而形成粗制磺化产物 含有磺内酯含量的C8-22烯烃磺酸的混合物,(b)将所述粗制磺化产物混合物在30℃至80℃下漂洗10至60分钟,用碱性漂白溶液在pH为 至少8,(c)将含有过量碱的所述稀释的漂白磺化产物混合物加热到140℃至170℃的温度,直到所述磺化产物混合物的磺内酯含量小于100ppm,和(d)回收 所说的碱金属C8-22α-烯烃磺酸盐的颜色浅,含量低。 通过该方法,可以将磺内酯含量从多达650,000ppm降低到小于50ppm。