Method For Drying Methyl Mercaptan By Means Of Azeotropic Distillation

Abstract: The present invention relates to a method for drying methyl mercaptan, in particular by azeotropic distillation, comprising the following steps: 1) a stream (A) comprising methyl mercaptan and water is introduced into a distillation column (1); 2) the stream (A) is distilled in the column (1); 3) the distillate (B) is recovered in the gas state, preferably at the top of the column; 4) the distillate (B) is condensed, preferably in a condenser (2), so as to obtain a condensate (C) in the liquid state; 5) the condensate (C) is separated, preferably by means of a decanter (3), so as to obtain two separate liquid phases, namely an aqueous phase (D) and an organic phase (E) comprising methyl mercaptan; 6) optionally, all or part of the organic phase (E) is introduced into the distillation column (1) as reflux; and 7) a stream (F) comprising dried methyl mercaptan is recovered, preferably at the bottom of the column (1). The present invention also relates to methods for producing methyl mercaptan comprising said drying process.

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