摘要
介绍了以丙烯腈、发烟硫酸、异丁烯为原料,一步反应生产2-丙烯酰胺-2-甲基丙磺酸(AMPS)的中试研究。该工艺主要由合成、精制、溶剂回收三个单元组成,其中原料投料摩尔比为丙烯腈∶发烟硫酸∶异丁烯=7∶1∶1,加酸反应温度10℃,时间3 h;通入异丁烯反应温度40℃,时间2.5 h。粗产品收率不低于90%,精制收率不低于65%,精制后可得质量分数大于99%的AMPS产品。
Introduces the pilot research of 2-aerylamido-2-methylpropanesulfonic acid （AMPS） production by one- step reaction t＇rom aerylonitrile, oleum and isobutylene. The process includes three units, synthesis, purification and solutions recovery. The mole ratio of acrylontfile, oleum and isobutylene is 7：1：1. The temperature of adding acid is 10 ℃, reacting for 3 hours; the temperature of adding isnbutylene is 40 ℃, and reacting for 2.5 hours. The yield of raw product is not less than 90%, the yield of purification is not less than 65%, and the mass fraction of AMPS after purification is greater than 99%.
出处
《上海化工》
CAS
2013年第10期8-10,共3页
Shanghai Chemical Industry
