发明名称 |
Process for producing sulfonate of unsaturated fatty acid ester |
摘要 |
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 C8 to C22 fatty acid and (B) a lower alkyl ester of a saturated C8 to C22 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.
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申请公布号 |
US4545939(A) |
申请公布日期 |
1985.10.08 |
申请号 |
US19840626081 |
申请日期 |
1984.06.29 |
申请人 |
LION CORPORATION |
发明人 |
SEKIGUCHI, SHIZUO;KITANO, KYOZO;NAGANO, KATSUMASA |
分类号 |
C07C309/17;C07C309/20;C07C309/62;(IPC1-7):C07C143/90 |
主分类号 |
C07C309/17 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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