T-dodecylmercaptan is confirmed as an important intermediate.The t-dodecylmercaptan is prepared by the reaction of ion exchange resin(NKC-9)which is used as catalyst with hydrogen sulfide,and the propylene tetramer is used as raw material.The effects of reaction temperature and pressure on the yield are investigated,and the catalytic results of Nafion-H are compared.The results show that the ion exchange resin(NKC-9)is a better catalyst than Nafion-H.The activity of catalyst does not decrease significantly after 5 cycles of experiment.The optimum process conditions are obtained as follows:the reaction time is 24 h,the pressure is 1.0 MPa,the reaction temperature is 80 ℃.The conversion rate is 76.1％and the se-lectivity is 96.1％.
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