Use of H2S-containing offgas streams for preparing sulfur-containing products

摘要

The present invention relates to a process for preparing sulfur-containing compounds of the general formula I in which Q, R¹ and R² are each independently defined as follows: Q: -S- or -S-S-, R¹: hydrogen or saturated or unsaturated, linear or branched C₁-C₃₀-alkyl radical, R²: hydrogen or saturated or unsaturated, linear or branched C₁-C₃₀-alkyl radical, where R¹ and R² are not simultaneously hydrogen, by reacting a mixed gas stream comprising hydrogen sulfide, with or without oxygen, with linear or branched C₁-C₃₀-olefins, which comprises carrying out the reaction in the presence of water and carbon dioxide at a pressure of from 2 to 325 bar.