基于低温熔融法的不溶性硫制备  

Preparation of insoluble sulfur based on low-temperature melting method

作　　者：邱奎[1] 宋梦桃 张迎[1] 朱勇[1] 

机构地区：[1]重庆科技学院化学化工学院,重庆401331 [2]南充炼油化工总厂,四川南充637000

出　　处：《大庆石油学院学报》2010年第2期100-103,共4页Journal of Daqing Petroleum Institute

摘　　要：为提高不溶性硫(IS)收率,需要寻找性能更优的稳定剂和引发体系及考虑对反应后的高温液硫进行冷却,采用低温熔融法制备不溶性硫(IS),考察反应条件对IS收率的影响.结果表明,引发剂和稳定剂质量分数对IS收率影响最显著;经正交优化后的反应条件:稳定剂KI质量分数为0.60%,引发剂过硫酸铵质量分数为0.40%,反应温度为240℃,反应时间为45min,对应的IS收率达到44.02%.Insoluble sulfur(IS) was prepared based on low-temperature melting method,and some factors influencing IS yield was discussed.The results show that amount of stabilizer and initiator were the most significant factors influencing IS yield,orthogonal design optimum parameters is:the amount of stabilizer KI is 0.60%,initiator (NH4)2S2O8 is 0.40%,reaction temperature and time separately are 240 ℃,45 minutes,IS yield is 44.02%.In order to improve the yield of IS,high performance stabilizers and initiators should be searched and the hot liquid sulfur after reaction should be cooled quickly.

关 键 词：不溶性硫 合成 橡胶 正交实验 稳定剂 引发剂 

分 类 号：TQ125.1[化学工程—无机化工]