One sulfur preparing urethane cogeneration dibenzyl disulfide and methods

The present invention discloses a process for preparing the thiourethane cogeneration dibenzyl disulfide and a method, which is the esterification xanthates, alkyl and benzyl halides, alkyl xanthate to give benzyl ; thiourethane after the mixture with hydrogen peroxide and benzyl mercaptan oxidation reaction; said alkyl xanthan benzyl ester aminolysis reaction with aliphatic amines to give a mixture of thiourethane and benzyl mercaptan liquid-solid separation, the resulting solid, a dibenzyl disulfide product, the resulting liquid was allowed to stand, water stratification, that is, the oil phase thiourethane products. The method for obtaining high yield of dibenzyl disulfide and sulfur urethane product, high purity and easy separation of the manufacturing process, environment-friendly, high atom economy, low production cost and easy industrial production.