摘要
采用萃取精馏法精制工业萘和萘渣，考察了不同溶剂、溶剂比的精制效果。结果表明：二乙醇胺是一种较好的极性溶剂，在溶剂比Ｒ＝１０．０时，可以分别得到萘含量ｗｎａｐｈ＝０．９９０的精萘和ｗｎａｐｈ＝０．９１８的萘；煤油是一种较好的非极性溶性，在溶剂比Ｒ＝３．０时，可以分别得到ｗｎａｐｈ＝０．９９２的精萘和ｗｎａｐｈ＝０．９０１的萘。
Industrial naphthalene and naphthalene residue are purified by extractive distillation. The effects of different solvents and solvent/crude ratios on parification have been studied. The results show that diethanolamine is a suitable polar solvent, and when the solvent/crude ratio is 10∶1, w naph =0.990 refined naphthalene and w naph =0.918 naphthalene can be obtained respectively; kerosene is a suitable nonpolar solvent and when the solvent/crude ratio is 3∶1, w naph = 0.992 refined naphthalene and w naph =0.901 naphthalene can be obtained, respectively.
出处
《华东理工大学学报（自然科学版）》
CAS
CSCD
北大核心
1999年第1期29-31,共3页
Journal of East China University of Science and Technology
基金
国家自然科学基金
关键词
萘
焦油
精制
萃取精馏法
naphthalene
thianaphthene
extractive distillation
diethanolamine
kerosene
