Preparation of light-colored, wash active .alpha.-sulfofatty acid
    5.
    发明授权
    Preparation of light-colored, wash active .alpha.-sulfofatty acid 失效
    制备浅色,洗涤活性α-磺基脂肪酸

    公开(公告)号:US4671900A

    公开(公告)日:1987-06-09

    申请号:US288769

    申请日:1981-07-31

    CPC classification number: C07C303/42 C11C3/00 C11D1/28

    Abstract: This invention is directed to the preparation of .alpha.-sulfofatty acid esters. More particularly, this invention is directed to a process for the simplified preparation of light-colored, wash-active esters of .alpha.-sulfofatty acids with monovalent C.sub.1 to C.sub.8 alcohols or their salts from fats and oils of vegetable and/or animal origin comprising re-esterification with the monovalent alcohols or saponification and esterification with the monovalent alcohols, separation of the fatty acid ester formed, hydrogenation of the fatty acid ester, sulfonation, and bleaching, wherein a fatty acid ester fraction from which accompanying fatty acid glycerides have been removed to the extent of about 1 percent by weight or less, based upon the weight of the material to be sulfonated, is introduced into the sulfonation stage.

    Abstract translation: 本发明涉及α-磺基脂肪酸酯的制备。 更具体地,本发明涉及一种简单制备α-磺基脂肪酸的浅色洗涤活性酯与一价C1至C8醇或其植物和/或动物来源的脂肪和油的盐的方法,其包括re 用单价醇进行酯化反应或用单价醇皂化和酯化,形成脂肪酸酯的分离,脂肪酸酯的氢化,磺化和漂白,其中伴随的脂肪酸甘油酯已被除去的脂肪酸酯部分 基于待磺化材料的重量约1重量%或更少的程度引入磺化阶段。

    Process for preparing brine tolerant sulfonate and sulfate surfactants
having 1,3-dihydrocarboxy-2-propyl hydrophobic tails
    6.
    发明授权
    Process for preparing brine tolerant sulfonate and sulfate surfactants having 1,3-dihydrocarboxy-2-propyl hydrophobic tails 失效
    制备具有1,3-二氢羧基-2-丙基疏水尾料的耐盐磺酸盐和硫酸盐表面活性剂的方法

    公开(公告)号:US4603009A

    公开(公告)日:1986-07-29

    申请号:US696949

    申请日:1985-01-31

    Inventor: Dennis H. Hoskin

    CPC classification number: C07C309/00 B01F17/0057 C09K8/584

    Abstract: Novel sulfonate and sulfate surfactants which have low interfacial tension at high salinity, and their use in enhanced oil recovery are disclosed. These surfactants may be made from relatively inexpensive intermediates, such as monohydric alcohols and epichlorohydrin. These surfactants have 1,3-dihydrocarboxy-2-propyl hydrophobic tails linked by ethoxy linkages to sulfate or alkyl sulfonate moieties.

    Abstract translation: 公开了在高盐度下具有低界面张力的新型磺酸盐和硫酸盐表面活性剂,以及它们在提高采收率中的用途。 这些表面活性剂可以由相对便宜的中间体制成,例如一元醇和表氯醇。 这些表面活性剂具有通过乙氧基键连接到硫酸盐或烷基磺酸盐部分的1,3-二氢羧基-2-丙基疏水尾。

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