▎ 摘　　要

NOVELTY - A green synthesis method of mercaptan compound comprises (S1) dissolving soluble nickel salt and an amine auxiliary agent in ethanol to obtain a mixed solution, dispersing graphene in ethanol to obtain a dispersion liquid, mixing the mixed solution with the dispersion liquid, leaving to obtain a precipitate, drying and calcining the precipitate in inert gas containing 5 ± 1% ammonia gas at 400-600℃ for 5 ± 0.5 hours to obtain a nickel-based supported catalyst; where the molar ratio of the nickel salt and the amine auxiliary agent is 1:1-2, and the mass ratio of the nickel salt and the graphene is 1:40-100, and (S2) mixing chloride, elemental sulfur, the nickel-based supported catalyst obtained in step (S1), an acid binding agent and a solvent, carrying out magnetic stirring reaction at 60-110℃ for 12-24 hours and after completing the reaction, post-processing to obtain the product. USE - The green method is used for the synthesis of mercaptan compound. ADVANTAGE - The invention catalyzes the C-S coupling reaction of chloride and elemental sulfur to directly generate mercaptan compound. The yield of mercaptan compound reaches 83-96%. DETAILED DESCRIPTION - A green synthesis method of mercaptan compound comprises (S1) dissolving soluble nickel salt and an amine auxiliary agent in ethanol to obtain a mixed solution, dispersing graphene in ethanol to obtain a dispersion liquid, mixing the mixed solution with the dispersion liquid, leaving to obtain a precipitate, drying and calcining the precipitate in inert gas containing 5 ± 1% ammonia gas at 400-600℃ for 5 ± 0.5 hours to obtain a nickel-based supported catalyst; where the molar ratio of the nickel salt and the amine auxiliary agent is 1:1-2, and the mass ratio of the nickel salt and the graphene is 1:40-100, and (S2) mixing chloride, elemental sulfur, the nickel-based supported catalyst obtained in step (S1), an acid binding agent and a solvent, carrying out magnetic stirring reaction at 60-110℃ for 12-24 hours and after completing the reaction, post-processing to obtain the product; where the molar ratio of the chloride, elemental sulfur and the acid binding agent is 1:1.5:2, and the mass of the nickel-based supported catalyst is 3.5-10% of that of the chloride.