CAJ | 학술논문

通过筛选有机溶剂,确定丙三醇水溶液为萃取剂提取中低温煤焦油中的酚类化合物。精馏切取中低温煤焦油170~240℃馏分作为萃取原料,通过单因素考察以及正交实验得出结论：丙三醇添加量对萃取结果影响最大,其次是停留时间。水添加量和温度对萃取结果影响最小。最佳萃取条件为：丙三醇和原料目标馏分质量比3∶1,丙三醇含水5％,温度30℃,混合时间30 min。丙三醇单级萃取率即达到92％以上。
통과사선유궤용제,학정병삼순수용액위췌취제제취중저온매초유중적분류화합물。정류절취중저온매초유170~240℃류분작위췌취원료,통과단인소고찰이급정교실험득출결론：병삼순첨가량대췌취결과영향최대,기차시정류시간。수첨가량화온도대췌취결과영향최소。최가췌취조건위：병삼순화원료목표류분질량비3∶1,병삼순함수5％,온도30℃,혼합시간30 min。병삼순단급췌취솔즉체도92％이상。
Glycerin solution is determined as extractant phenolic compounds in medium and low temperature coal tar by the screening of organic solvent.Take 170℃ to 240℃ of medium and low temperature coal tar as extraction material.Drawing a conclusion through single factor analysis and orthogonal test. Glycerin addition has the most important influence on extraction rate and it is followed by residence time,water addition and temperature.The optimum extraction condition is that,the mass ratio of glycerin to material is 3 ∶ 1,the water con-tent of glycerin solution is 5%,the temperature is 30 ℃,the mixing time is 30 minutes.The single-stage extraction rate is up to 92%.