摘要
以 Witton法生产 DMT副产中分离出来的 DMI为原料 ,利用三氧化硫对其进行磺化、酯化制备 SIPM。并对粗 SIPM进行精制 ,产品质量达到了国际标准 ,收率超过 85%
Sodium dimethyl isophthalate sulfonate was obtained from dimethyl Isophthalate by sulfonation with sulfuric anhydride and esterification with methanol. The product had been purified upto the international quality standards. The rate of product exceeded 85%.
出处
《精细石油化工》
CAS
CSCD
北大核心
1999年第5期23-26,共4页
Speciality Petrochemicals
关键词
间苯二甲酸
二甲酯
磺化
酯化
染料
改性剂
dimethyl isophthalate
sulfonation
esterification
purification
