硫化促进剂M一步法后处理工艺技术研究  

Research on one-step post-treatment process technology of vulcanization accelerator M

作　　者：周波 Zhou Bo(Jiangsu Sopo Chemical Construction Engineering Corporation Ltd.,Zhenjiang 212006,China)

机构地区：[1]江苏索普化工建设工程有限公司,江苏镇江212006

出　　处：《煤炭与化工》2021年第12期109-111,共3页Coal and Chemical Industry

摘　　要：基于粗品M纯度为87%左右,需精制处理达到国标要求的97%。常规的酸碱法精制工艺需耗用大量的水和酸碱,并产生大量的含盐废水,对环境影响大;传统的甲苯溶剂法精制工艺,因其溶解性的局限,M成品纯度仅能达到97.5%左右。研究了苯胺一步法粗M精制工艺,对粗品M采用苯胺先溶解后晶析的方法,可得到纯度98%以上的成品,苯胺可循环使用9次,回收率为76%以上,精制收率达95%以上。该工艺简单易行,设备投资省,占地小,无须其它辅助原料,三废量少,是一条经济、合理、便捷、可行的精制工艺路线。Based on the purity of crude product M is about 87%,which needs to be refined to 97%of the national standard.The conventional acid-base refining process consumes a lot of water and acid-base,and produces a large amount of salt-containing wastewater,which has a great impact on the environment.Due to the solubility limitation of traditional toluene solvent refining process,the purity of M product could only reach about 97.5%.The one-step refining process of aniline crude M was studied.The method of dissolving aniline first and then crystallization for crude product M could obtain finished products with a purity of more than 98%.Aniline could be recycled for 9 times with a recovery rate of more than 76%and refining yield above 95%.The process is simple and easy to implement,saves equipment investment,occupies a small area,does not require other auxiliary materials,and has a small amount of three wastes.It is an economical,reasonable,convenient and feasible refining process route.

关 键 词：促进剂M 溶剂一步法 苯胺 精制工艺 

分 类 号：TQ314.243[化学工程—高聚物工业]