2,2′-二硫代二苯并噻唑的精制  

Refining of 2,2-Dibenzothiazyl Disulfide

作　　者：宋玉叶[1] 黎振球[1] 肖海焕[1] 

机构地区：[1]青岛科技大学化工学院,山东青岛266042

出　　处：《江苏化工》2008年第3期23-25,共3页Jiangsu Chemical Industry

摘　　要：用溶剂萃取和重结晶相结合的方法对橡胶促进剂2,2′-二硫代二苯并噻唑(DM)进行精制,用测熔点的方法来检验纯度。实验结果:加入溶剂甲苯与粗DM以7∶1(质量比)的比例,设置温度为120℃,在高压釜中加热,然后冷却结晶,烘干,得到浅黄色晶体,熔点达183℃,收率达92%。through combination of extraction and crystal ways the 2,2-Dibenzothiazyl Disulfide(DM)could be refined,and its purity was examined by measuring melting point method. It obtains following conclusions on the basis of experiment results:joining the quantity of solvent toluene and crude DM by 7∶1 proportion,establishing temperature for 120 ℃. The heating voltage is 80 volts while it performs in the high-pressure reactor,then cooling,crystallizing and drying to obtain the light white crystal. The melting point could achieve 83 ℃,and the efficiency of reclaim reaches 92%.

关 键 词：2 2'-二硫代二苯并噻唑 萃取 重结晶 精制 

分 类 号：TQ330.38+5[化学工程—橡胶工业]