摘要
在200t／a的N-苯基马来酰亚胺（N-PMI）工业试验装置上，以苯胺和顺酐为原料，有机酸为催化剂，采用二步法生产出N—PMI。通过工业试验确定了最佳工艺条件：以甲苯、二甲苯混合溶液（二者质量比1／1）为溶剂，混合溶剂质量分数为200％-250％，有机酸催化剂用量为0．007～0．008kmol。反应时间3．0—3．5h。稳定运行结果表明，产品收率达到93％以上，熔点达到86．5℃，质量稳定。
N-phenylmaleimide(N-PMI) was produced in 200 t/a industrial experiment unit by adopting two-step process method,with aminobenzene and cis-butenedioic anhydride as feedstocks and orgnic acid as catalyst.The optimized process conditions were determined by the industrial experiment:using the mixed solution of toluene and xyleneas solvent,the mass fraction of mixing solvent 200%～225%,the amount of catalyst 0.007～0.008 kmol and the reaction time 3.0～3.5()h.The stable running results showed that the yield of N-PMI was more than 93%,the average melting point of N-PMI was 86.5()℃,and the quality of N-PMI was stability.
出处
《石化技术与应用》
CAS
2006年第6期462-463,467,共3页
Petrochemical Technology & Application
关键词
苯胺
顺酐
N-苯基马来酰亚胺
工业试验
工艺条件
aminobenzene
cis-butenedioic anhydride
N-phenylmaleimide
industrial experiment
process condition
