超临界乙醇萃取咔唑的实验研究  

Experimental Study on Extraction of Carbazole by Supercritical Ethanol

作　　者：何选明[1,2] 陈康[1] 陈怡佳[1] 尹亮[1] 

机构地区：[1]武汉科技大学化学工程与技术学院,湖北武汉430081 [2]煤转化与新型炭材料湖北省重点实验室,湖北武汉430081

出　　处：《化学与生物工程》2012年第12期61-64,共4页Chemistry & Bioengineering

摘　　要：以乙醇为超临界萃取溶剂,采用恒容升温法研究了超临界乙醇对煤焦油蒽油组分咔唑的萃取效果,探讨了温度和压力对萃取效果的影响。结果表明,在萃取温度为270～280℃、萃取压力为12MPa左右时,咔唑的溶解度较大、萃取率较高,萃取效果明显;温度和压力对超临界乙醇萃取咔唑影响显著;超临界乙醇萃取单组分咔唑效果较好。As a constituent of coal tar,carbazole extraction rate and solubility were investigated with super- critical ethanol as extraction solvent by heating in constant volume. The results showed that the extraction effi- ciency was excellent with higher carbazoleextraction rate and soiubility at 270-280 ℃and 12 MPa. The results also revealed that the extraction efficiency was influenced Obviously by temperature and pressure. Extraction by supercritical ethanol had a significant effect on one-component carbazole.

关 键 词：咔唑 超临界乙醇 GC分析 萃取效果 

分 类 号：TQ522.63[化学工程—煤化学工程]