Process for the preparation of internal olefin sulphonates

Details Process for the preparation of internal olefin sulphonates Process for the preparation of internal olefin sulphonates

C - Chemistry, Metallurgy

07

C

260/327.7, 260/5

C07C 303/32 (2006.01) C07C 303/02 (2006.01) C07C 309/08 (2006.01) C07D 327/02 (2006.01) C07C 309/20 (2006.01)

Patent

CA 1338239

The invention relates to a process for the preparation of internal olefin sulphonates which comprises reacting in a film reactor an internal olefin having from 8 to 26 carbon atoms with a sulphonating agent, in a mol ratio of sulphonating agent to internal olefin of 1:1 to 1.25:1 while cooling the reactor with a cooling means having a temperature not exceeding 35 C, and allowing to neutralize and hydrolyze the reaction product of the sulphonating step and further to internal olefin sulphonates which have a high content of beta-hydroxy sulphonates compared with the usually described products.

605238

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