橡胶防老剂MB清洁合成工艺的研究  

Study on the Clean Synthesis Process of Rubber Antioxidant MB

作　　者：李延升 王文斐 赵小峰 

机构地区：[1]鹤壁联昊化工股份有限公司,河南鹤壁458000

出　　处：《广州化工》2015年第17期103-105,共3页GuangZhou Chemical Industry

摘　　要：提出了MB共振结构式的理念。以邻苯二胺、二硫化碳为原料,无水乙醇作为溶剂,在催化剂的作用下合成橡胶防老剂MB,并通过1H NMR、13C NMR进行表征。工艺条件为:n(CS2)∶n(邻苯二胺)=2∶1,催化剂加入量为理论产量的2‰,首批收率达到88%,反应液套用后收率接近100%。相对于传统工艺,本工艺环保,有很大的市场前景。The concept of resonance structure of MB was put forward. Under the action of catalyst, rubber antioxidant MB was synthesized by o-diaminobenzene and carbon disulfide in absolute ethanol, and characterized by 1 H NMR and 13 C NMR. The synthetic conditions were as follows： n（ CS2 ）：n（ o-diaminobenzene）=2：1, the amount of catalyst was 2‰ of theoretical yield. The yield of the first batch was 88%, and closed to 100% when the reaction solution was recycled. Compared with the traditional process, this process has no pollution and has great market prospects.

关 键 词：防老剂MB 共振结构式 乙醇 催化 清洁工艺 

分 类 号：O625.72[理学—有机化学]