High-purity dithiadiazole derivative and preparation method thereof

• Main Authors: XUE WEIGUO, XU NING, WANG JUNMING, DONG HONGXIA, LI TUANLE
• Format: Patent
• Language: Chinese; English
• Published: 26.03.2024
• Subjects: CHEMISTRY; FUELS; HETEROCYCLIC COMPOUNDS; INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATINGCOMPOSITIONS; LUBRICANTS; LUBRICATING COMPOSITIONS; METALLURGY; ORGANIC CHEMISTRY; PEAT; PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATINGINGREDIENTS IN A LUBRICATING COMPOSITION

According to the high-purity dithiadiazole derivative and the preparation method thereof, 2, 5-dimercapto-1, 3, 4-thiadiazole, binary mercaptan and hydrogen peroxide are added into ethyl alcohol to react to produce an intermediate, then alkyl mercaptan and hydrogen peroxide are added into an intermediate mixed solution to react to obtain a crude product, and finally the crude product is purified through a molecular distillation technology. The obtained dithiadiazole derivative is high in sulfur content and has excellent extrusion performance and corrosion inhibition performance, and the post-treatment process of the product is green and efficient. 本发明公开的高纯度双噻二唑衍生物及其制备方法，在乙醇中加入2,5-二巯基-1,3,4-噻二唑、二元硫醇及双氧水，反应生产中间体，然后在中间体混合溶液中加入烷基硫醇与双氧水，反应后得到粗产品，最后通过分子蒸馏技术对粗产品进行纯化。本发明得到的双噻二唑衍生物硫含量高，具有优异的挤压性能和缓蚀性能，产品后处理工艺绿色高效。