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    • 3. 发明授权
    • Process for producing salt of alpha-sulfo fatty acid alkyl ester
    • 生产α-磺基脂肪酸烷基酯盐的方法
    • US4579687A
    • 1986-04-01
    • US561396
    • 1983-12-14
    • Shizuo SekiguchiKatsumasa NaganoKyozo Kitano
    • Shizuo SekiguchiKatsumasa NaganoKyozo Kitano
    • C07C309/17C07C67/00C07C301/00C07C303/06C07C303/32C07C309/20C07C309/22C07C309/62C07C143/90
    • C07C309/00
    • A process for producing the salt of an alpha-sulfo fatty acid alkyl ester having the general formula (I): ##STR1## wherein R.sub.1 is an alkyl or alkenyl group having 6 to 20 carbon atoms, R.sub.2 is an alkyl or alkenyl group having 2 to 8 carbon atoms, and M is an alkali metal, an alkaline earth metal, ammonium, or an organic base comprising the steps of:sulfonating a fatty acid alkyl ester having the general formula (II):R.sub.1 CH.sub.2 COOR.sub.2 (II) wherein R.sub.1 and R.sub.2 are the same as defined above;neutralizing the sulfonated product; anddecomposing a sulfonic acid anhydride having the general formula (III): ##STR2## wherein R.sub.1 and R.sub.2 are the same as defined above, contained in the reaction mixture. Thus, the desired salt of an alpha-sulfo fatty acid alkyl ester can be produced at a high yield from a fatty acid alkyl ester having an ester-bonded alkyl group with 2 or more carbon atoms.
    • 制备具有通式(I)的α-磺基脂肪酸烷基酯的盐的方法:其中R1是具有6-20个碳原子的烷基或烯基,R2是烷基或烯基 具有2至8个碳原子的基团,M是碱金属,碱土金属,铵或有机碱,包括以下步骤:磺化具有通式(II)的脂肪酸烷基酯:R 1 CH 2 COOR 2(II)其中 R1和R2与上述定义相同; 中和磺化产物; 并且分解具有通式(III)的磺酸酐:其中R 1和R 2与上述定义相同,其包含在反应混合物中。 因此,可以从具有2个以上碳原子的具有酯键合的烷基的脂肪酸烷基酯以高产率制备所需的α-磺基脂肪酸烷基酯盐。
    • 5. 发明授权
    • Process for producing sulfonate of unsaturated fatty acid ester
    • 生产不饱和脂肪酸酯磺酸盐的方法
    • US4545939A
    • 1985-10-08
    • US626081
    • 1984-06-29
    • Shizuo SekiguchiKyozo KitanoKatsumasa Nagano
    • Shizuo SekiguchiKyozo KitanoKatsumasa Nagano
    • C07C309/17C07C309/20C07C309/62C07C143/90
    • C07C309/00
    • A process for producing a sulfonate of an unsaturated fatty acid lower alkyl ester comprising the steps of:(i) sulfonating a mixture of (A) a lower alkyl ester of an unsaturated C.sub.8 to C.sub.22 fatty acid and (B) a lower alkyl ester of a saturated C.sub.8 to C.sub.22 fatty acid in a weight ratio of (A)/(B)=90/10 to 5/95 with a sulfonating agent in such a manner that the amount of the unreacted component (A) in the total unreacted components in the mixture is at least 0.3% by weight; and(ii) neutralizing and hydrolyzing the sulfonated product.This process provides the desired sulfonate of unsaturated fatty acid ester having a pale tone color at a high conversion. When the sulfonated product is separated by using (a) a polyol (or polyhydric alcohol) having 2 to 8 carbon atoms, (b) an alkylene glycol in a liquid state at an ambient temperature, or (c) an olefin having 6 to 30 carbon atoms, the desired sulfonate can be separated at a high recovery efficiency and with good workability.
    • 一种不饱和脂肪酸低级烷基酯磺酸盐的制备方法,包括以下步骤:(i)将(A)不饱和C8至C22脂肪酸的低级烷基酯和(B)低级烷基酯的混合物磺化 以(A)/(B)= 90/10〜5/95的重量比的饱和C8〜C22脂肪酸与磺化剂反应,使未反应成分(A)的总未反应成分 在混合物中至少为0.3重量%; 和(ii)中和和水解磺化产物。 该方法在高转化率下提供具有淡色调的所需不饱和脂肪酸酯磺酸盐。 当使用(a)具有2-8个碳原子的多元醇(或多元醇)分离磺化产物时,(b)环境温度为液态的亚烷基二醇,或(c)具有6至30个碳原子的烯烃 碳原子,所需的磺酸盐可以以高回收率和良好的加工性分离。