Process for the preparation of organic disulfides

Details Process for the preparation of organic disulfides Process for the preparation of organic disulfides

C - Chemistry, Metallurgy

07

C

C07C 319/24 (2006.01) C07C 321/14 (2006.01)

Patent

CA 2352385

The invention relates to a process for the preparation of organic disulfides by oxidation of mercaptans with sulfur dissolved in an organic disulfide using an amine as catalyst, where the mercaptans are used as "crude mercaptan stream" from a reaction of alcohols with hydrogen sulfide over a catalyst suitable for mercaptan synthesis. Furthermore, the invention relates to the use of the organic disulfides for the preparation of alkanesulfonic acids.

L'invention concerne un procédé permettant de préparer des bisulfures organiques par oxydation de mercaptanes avec du soufre dissous dans un bisulfure organique, le catalyseur utilisé étant une amine. Les mercaptanes sont utilisés sous forme de </= flux de mercaptane brut >/= issu d'une réaction d'alcools avec de l'acide sulfhydrique sur un catalyseur convenant à la synthèse de mercaptane. L'invention concerne en outre l'utilisation des bisulfures organiques pour préparer des acides alcane-sulfoniques.

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