Preparation of secondary thiols

Details Preparation of secondary thiols Preparation of secondary thiols

B - Operations, Transporting

01

J

260/625.9

B01J 29/06 (2006.01)

Patent

CA 1245233

A B S T R A C T PREPARATION OF SECONDARY THIOLS The invention relates to a process for the preparation of C10 to C30 secondary thiols which comprises contacting in a liquid phase at a temperature in the range from 40 °to 140 °C and at a pressure of at least 10 bar, one or more C10 to C30 linear mono-olefins with hydrogen sulphide, the molar ratio of said hydrogen sulphide to said olefins in said liquid phase being at least 1 to 1, in the presence of a catalytically effective amount of a zeolite catalyst. The process achieves high selectivity to the secondary thiol and minimizes formation of dialkyl sulphide by-products. The secondary thiol products are of particular advantage for use as intermediates in the preparation of surfactant chemicals.

450189

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