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    • 46. 发明授权
    • Detergent compositions containing modified alkylaryl sulfonate surfactants
    • 含有改性烷基芳基磺酸盐表面活性剂的洗涤剂组合物
    • US06589927B1
    • 2003-07-08
    • US09980800
    • 2001-12-03
    • Kevin Lee KottJeffrey John ScheibelRoland George SeversonThomas Anthony CripeJames Charles Theophile Roger Burckett-St. Laurent
    • Kevin Lee KottJeffrey John ScheibelRoland George SeversonThomas Anthony CripeJames Charles Theophile Roger Burckett-St. Laurent
    • C11D1700
    • C11D1/65C11D1/22C11D1/83C11D1/86C11D1/94
    • The present invention is in the field of processes for making alkylbenzenesulfonate surfactants. The processes herein include a combination of two essential steps, delinearization and alkylation. The delinearization step selected herein introduces particular types of limited branching into an aliphatic hydrocarbon having ten or more, but no more than about 16, carbon atoms. The hydrocarbon includes olefin having a hydrocarbon chain length suitable for detergent manufacture, e.g., C10-C14, or a corresponding paraffin. The second essential step is an alkylation step having an internal isomer selectivity of from 0 to no more than about 40 in which the hydrocarbon is used to monoalkylate benzene catalytically with an alkylation catalyst. Such alkylation catalysts preferably comprise an at least partially crystalline porous zeolite-containing solid, the zeolite having moderate acidity and intermediate pore size. Preferred alkylation catalysts include certain at least partially dealuminized acidic nonfluorinated mordenites. The processes herein further comprise sulfonating, neutralizing and incorporating the resulting modified alkylbenzenesulfonate surfactants into consumer products. The invention relates also to the products of the processes, including modified surfactants and consumer cleaning products containing them.
    • 本发明涉及制备烷基苯磺酸盐表面活性剂的方法领域。 本文的方法包括两个必要步骤,划线和烷基化的组合。 本文选择的描述步骤将特定类型的有限支化引入具有10个或更多个但不超过约16个碳原子的脂族烃。 烃包括具有适于洗涤剂制造的烃链长度的烯烃,例如C10-C14或相应的石蜡。 第二个关键步骤是烷基化步骤,其内部异构体选择性为0至不超过约40,其中烃用烷基化催化剂催化苯烷基化。 这种烷基化催化剂优选包括至少部分结晶的含多孔沸石的固体,沸石具有适度的酸度和中等孔径。 优选的烷基化催化剂包括某些至少部分脱铝的酸性非氟化丝光沸石。 本文的方法还包括将所得的改性烷基苯磺酸盐表面活性剂磺化,中和并并入消费品中。 本发明还涉及该方法的产品,包括改性表面活性剂和含有它们的消费者清洁产品。