Process for removing paraffins from their mixtures with...

Details Process for removing paraffins from their mixtures with... Process for removing paraffins from their mixtures with...

C - Chemistry, Metallurgy

07

C

260/530.6

C07C 303/44 (2006.01) C07C 7/00 (2006.01) C07C 7/10 (2006.01) C07C 7/148 (2006.01) C07C 9/15 (2006.01) C07C 9/22 (2006.01) C07C 303/14 (2006.01) C07C 303/42 (2006.01) C07C 309/03 (2006.01) C07C 309/04 (2006.01) C10G 21/08 (2006.01) C10G 31/00 (2006.01) C10G 73/02 (2006.01) C10G 73/38 (2006.01) C11D 3/34 (2006.01)

Patent

CA 1296358

"PROCESS FOR REMOVING PARAFFINS FROM THEIR MIXTURES WITH PARAFFINSULPHONIC ACIDS." ABSTRACT OF THE DISCLOSURE: Mixtures of C12-C18 n-paraffins with paraffinsulphonic acids having the same number of carbon atoms, water and sulphuric acid, and obtained by sulphoxidation of said paraffins with SO2 and O2 in the presence of water and UV radiation are stripped of their excess SO2 and decanted to separate most of the paraffins, and obtain a residual mixture. The residual mixture is dehydrated according to the invention until a two-phase system forms or at least until the mixture becomes turbid, and the dehydrated mixture either as such or after separating the heavier phase consisting of water and sulphuric acid is extracted with supercritical CO2, which removes with it the n-paraffins, these being reused in the sulphoxidation process.

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