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    • 3. 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。