促进剂CBS的混合氧化法合成工艺及微观结构表征  

Synthesis Process and Microstructure Characterization of Accelerator CBS by Mixed Oxidation Method

作　　者：苗进之 贾太轩 王奎亮[1] 刘志勇 宋平原 宋相旭 MIAO Jinzhi;JIA Taixuan;WANG Kuiliang;LIU Zhiyong;SONG Pingyuan;SONG Xiangxu(Henan Kailun Chemical Co.,Ltd,Anyang 456400,China;Anyang Institute of Technology,Anyang 455000,China)

机构地区：[1]河南省开仑化工有限责任公司,河南安阳456400 [2]安阳工学院化学与环境工程学院,河南安阳455000

出　　处：《橡胶科技》2023年第1期35-39,共5页Rubber Science and Technology

基　　金：河南省中央引导地方科技发展专项跨区域研发合作项目(Z20221343016);安阳市重大科技专项计划项目(2022A02GX008)。

摘　　要：研究N-环己基-2-苯并噻唑次磺酰胺(促进剂CBS)的混合氧化法合成工艺,采用傅里叶红外光谱等多种检测方法分析反应产物的微观结构。将2-巯基苯并噻唑(促进剂MBT)和环己胺混合,采用绿色复合氧化剂的混合氧化工艺,确定了合成促进剂CBS的最佳工艺条件为:促进剂MBT/环己胺/复合氧化剂/水的物质的量比1/2.3/1.2/45,温度40~50℃,打浆成盐时间40 min;新环己胺/回收环己胺的物质的量比1/1.2;制得的促进剂CBS纯度为99.8%,收率达到95%。采用混合氧化法制备促进剂CBS,可以解决次氯酸钠氧化法废水含盐量高和双氧水氧化法收率低的问题,且环己胺循环使用,是具有工业应用价值的绿色工艺。The mixed oxidation synthesis process of N-cyclohexyl-2-benzothiazolesulfonamide(accelerator CBS)was studied,and the microstructure of the reaction product was analyzed by various analysis methods such as Fourier infrared spectroscopy.The accelerator CBS was synthesized by firstly mixing 2-mercaptobenzothiazole(accelerator MBT)and cyclohexylamine,and then oxidizing the mixture by using mixed oxidation process with green composite oxidant.The optimum process conditions for synthesizing accelerator CBS were as follows:the molar ratio of the accelerator MBT/cyclohexylamine/composite oxidant/water was 1/2.3/1.2/45,the mixing temperature was 40~50℃,and the time for pulping and salt formation was 40 min.The molar ratio of new cyclohexylamine/recovered cyclohexylamine was 1/1.2.The experimental results showed that the purity of the obtained accelerator CBS was 99.8%and the yield was 95%under the optimum process conditions.Using the mixed oxidation process to prepare accelerator CBS could solve the problems of high salt content in wastewater from the sodium hypochlorite oxidation method and low yield from the hydrogen peroxide oxidation method.In the process,cyclohexylamine was recycled.This process was a green process with industrial application value.

关 键 词：促进剂CBS 2-巯基苯并噻唑 环己胺 混合氧化法 

分 类 号：TQ330.385[化学工程—橡胶工业]