| 摘要 |
PURPOSE:To improve the sulfonation ratio of an inner olefin, by adding a specific amount of an alpha-olefin to an inner olefin under specific condition, and reacting the olefins using a sulfonation agent. CONSTITUTION:A 8-22C inner olefin is added with an alpha-olefin having a carbon number nearly equal to that of the inner olein, i.e. larger than the average carbon number of the inner olefin by 3-7, preferably 3.3-6, and is sulfonated with a sulfonation agent (e.g. gaseous SO3, sulfane, fuming sulfuric acid, etc.). The weight ratio of inner olefin to alpha-olefin is 95/5-5/95, preferably 80/20-20/80. The inner olefin sulfonic acid said is useful as surface active agents and various detergents.
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