硫化促进剂NS合成工艺研究

Synthesis Techniques of Accelerator NS

采用促进剂M-Na盐作原料,加入少量的十二烷基苯磺酸钠作分散剂,同时配制稀释的叔丁胺溶液投料,以次氯酸钠作氧化剂合成硫化促进剂NS。实验最佳条件:主要原料配比n(促进剂M)∶n(NaOH)∶n(叔丁胺)为1∶1.02∶2.6,分散剂十二烷基苯磺酸钠用量为促进剂M质量的0.4%。产品硫化促进剂NS的优级品率达到90%以上,得率最大达到93.62%。

A process was described in this paper for production of vulcanization accelerator NS,with M-Na salt as feedstock,a small amount of SDS as dispersant,sodium hypochlorite as oxidant,in the dilute solution of tert-butylamine.A preferred reaction condition would be a molar ratio of M to NaOH to tert-butylamine as 1∶ 1.02∶ 2.6,with the amount of dispersant SDS as 0.4% of M.The best-grade product NS get thereby reached above 90%,with a maximized yield of 93.62%.