C - Chemistry – Metallurgy – 07 – C
Patent
C - Chemistry, Metallurgy
07
C
C07C 303/06 (2006.01)
Patent
CA 2634257
A process for preparing a synthetic petroleum sulfonate comprising (a) reacting at least one aromatic compound with a mixture of olefins selected from olefins having from about 8 to about 100 carbon atoms, in the presence of an acidic ionic liquid catalyst, wherein the resulting product comprises at least about 50 weight percent of a . 1, 2, 4 tri-substituted aromatic compound or a 1, 2, 3 tri-substituted aromatic compound or mixtures thereof; (b) reacting the product of (a) with sulfur trioxide, which has been diluted with air; and (c) neutralizing the product of (b) with an alkali or alkaline earth metal hydroxide.
L~invention concerne un procédé de fabrication d~un sulfonate de pétrole synthétique comprenant les étapes suivantes (a) faire réagir au moins un composé aromatique avec un mélange d~oléfines choisies parmi des oléfines ayant entre environ 8 et environ 100 atomes de carbone, en présence d~un catalyseur à base de liquide ionique acide, le produit résultant comprenant au moins environ 50 pour cent en poids d~un composé aromatique 1,2,4-tri-substitué ou d~un composé aromatique 1,2,3-tri-substitué ou leurs mélanges ; (b) faire réagir le produit de (a) avec du trioxyde de soufre dilué dans de l~air ; et (c) neutraliser le produit de (b) avec un hydroxyde métallique alcalino-terreux ou alcalin.
Campbell Curt B.
Harris Thomas V.
Sinquin Gilles
Chevron Oronite Company Llc
Sim & Mcburney
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