东南大学学报（英文版）2005，Vol.21Issue(1)：68-72,5.
甲基吡啶的解离萃取分离实验研究
Separation of picolines by dissociation extraction
摘要
Abstract
The separation of the by-product (The volume fraction of 3-picoline is 68.4722% and 4-picoline 26.5176%.) in the synthesis of pyridine by dissociation extraction was studied.Six separation conditions of the dissociation extraction-the kind and the dosage of extractant and organic solvent,the concentration of the extractant and separation temperature-were investigated.Different levels of each factor were chosen to form an orthogonal test of six factors and five levels.The results show that the volume ratio of 3-picoline and 4-picoline in organic phase is the highest when 24 mL picolines are separated at 0 ℃ by 2.0 mol/L p-toluenesulfonic and n-heptane whose dosages are 40mL and 48mL,respectively.The effect of the separation is considerably improved with repetition test.This process of dissociation extraction has commendable potential for industrial exploitation.关键词
3-甲基吡啶/4-甲基吡啶/分离/解离萃取/正交试验Key words
3-picoline/4-picoline/separation/dissociation extraction/orthogonal test分类
化学化工引用本文复制引用
赵欢,肖国民,吕建华..甲基吡啶的解离萃取分离实验研究[J].东南大学学报（英文版）,2005,21(1):68-72,5.
