摘要
研究了以对甲基苯胺为原料 ,利用液相烘焙磺化法合成甲基苯胺 -邻磺酸的新工艺 ,该工艺具有反应温度低 ,反应彻底 ,转化率高 ,溶剂可回收利用 ,三废少的特点。讨论了各种工艺条件对反应的影响 ,找到了最佳工艺条件 ,在此条件下产品收率在 90 %左右 ,制得的产品纯度在 98%以上 。
A new technology of synthesis of p-toluidine-o-sulfonic acid by sulfonation in solvent has been studied.Effects of various reaction conditions are discussed in detail.The process has such unique advantages as lower temperature,higher conversion rate and less pollution.Under the optimum conditions,the purity and the yield of p-toluidine-o-sulfonic acid are better than those of the same product made in Japan.
出处
《化工进展》
EI
CAS
CSCD
北大核心
2002年第12期941-944,共4页
Chemical Industry and Engineering Progress
