Synthesis process of thioether type antioxidant

The invention relates to the technical field of antioxidants, in particular to a synthesis process of a thioether type antioxidant. The synthesis process of the thioether type antioxidant comprises the following steps: (1) introducing epoxypropane into a Na2S aqueous solution, and carrying out heating reaction to obtain 1, 1 '-thiodipropyl-2-alcohol; (2) adding 1, 1 '-thiodipropyl-2-alcohol and a solid catalyst into 3, 5-methyl ester, and carrying out heating reaction, so as to obtain a thioether type antioxidant; and (3) dissolving the thioether type antioxidant in methanol, filtering, mixing with a new solid catalyst, and applying the solid catalyst obtained by mixing to the step (2) to prepare the thioether type antioxidant. The synthesis process disclosed by the invention has the advantage of improving the yield of the thioether type antioxidant. 本申请涉及抗氧化剂的技术领域，更具体地说，它涉及一种硫醚型抗氧化剂的合成工艺。一种硫醚型抗氧化剂的合成工艺包括以下步骤：（1）将环氧丙烷通入Na2S水溶液内升温反应，得到1,1'-硫代二丙－2－醇；（2）将1,1'-硫代二丙－2－醇以及固体催化剂加入3,5－甲酯中，升温反应，得到硫醚型抗氧化剂；（3）将硫醚型抗氧化剂溶解