Method For Preparing Mercaptans By Sulfhydrolysis Of Dialkyl Sulfides With Catalyst Pretreatment

Abstract: The present invention relates to a method for preparing at least one mercaptan, which comprises the following steps: i) treating a catalyst for sulfhydrolysis of at least one dialkyl sulfide, preferably a zeolite, said treatment comprising the following steps: 1) heating said catalyst, preferably in the presence of an inert gas; and 2) placing said catalyst in contact with hydrogen sulfide (H2S); and then ii) performing a sulfhydrolysis reaction in which at least one dialkyl sulfide is reacted with H2S in the presence of said catalyst treated according to step i), in order to obtain at least one mercaptan, said catalyst being a zeolite.

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