Rubber accelerator dibenzothiazole disulfide (mbts) plays a very important role in the rubber vulcanization process, and its addition to the rubber material can promote the activation of vulcanizing agent, thus accelerating the cross-linking reaction between vulcanizing agent and rubber molecules to achieve the practical effect of shortening the vulcanization time, reducing the vulcanization temperature, increasing the yield and reducing the production cost.

mbts is an indispensable additive in the rubber accelerator industry, the current mainstream process synthesis method is the use of industrial-grade synthetic mbt as raw materials, the use of oxidizing agents oxidation to get. Among them, the main oxidants used are nitrous acid, oxygen, chlorine, potassium permanganate, etc.. Although each of these oxidants has its own advantages, but the preparation process produces a large amount of wastewater, easy to produce pollution to the environment; especially the chlorine method of oxidation synthesis of mbts, the resulting product quality is poor, and chlorine gas is toxic, more serious pollution of the environment.

In addition, the mbts prepared by the above methods have the problem of low quality, the melting point of the products obtained is generally below 170℃, the purity is only 96-97%, the added value of the products is low, and it is difficult to meet the requirements of special industries. Based on the above situation, there is an urgent need to develop a method to prepare high quality mbts products.

The quality of mbt, as a raw material for preparing mbts, determines the quality of the final mbts product. Therefore, the development of new high quality mbt raw materials is an effective way to achieve the above purpose.