| 摘要 |
1,194,861. Alkenyl sulphonates. COLGATE PALMOLIVE CO. 3 May, 1967 [10 May, 1966], No. 20472/67. Heading C2C. [Also in Division C5] An olefin sulphonate is prepared by reacting SO 3 and an olefin feedstock in about 1: 1 molar ratio. The olefin feedstock contains approx. 88% of terminally unsaturated straight-chain olefins of average molecular weight 230 and average chain-length 15-18 C atoms (C 15 24%; C 16 29%; C 17 30%; C 18 17%). The acid mix thus obtained is treated with oleum under non- hydrolyzing conditions and is finally neutralized with aqueous dilute NaOH. Reference has been directed by the Comptroller to Specification 1,151,052. |
