超临界乙醇萃取蒽的实验研究  

Extraction of anthracene by supercritical ethanol

作　　者：郑辉[1] 何选明 易霜 林红涛 

机构地区：[1]武汉科技大学,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：《现代化工》2016年第10期73-75,77,共4页Modern Chemical Industry

摘　　要：以乙醇为超临界萃取剂,采用恒容升温法研究了超临界乙醇对煤焦油中重要组分蒽的萃取效果,探究了温度和压力对萃取效果的影响。结果表明,在270～275℃,萃取压力为15.5 MPa左右时,萃取效果达到66%。实验表明,温度和压力对超临界乙醇萃取蒽有明显的影响。Anthracene is a constituent of coal tar. With supercritical ethanol as extraction solvent,the extraction of anthracene from caol tar is investigated by heating in constant volume. The influence of temperature and pressure on the extraction effect is also studied. The result shows that the extraction efficiency is obviously influenced by temperature and pressure. The extraction efficiency can achieve 66% at 270- 275℃ and 15. 5 MPa because of higher anthracene extraction rate and solubility.

关 键 词：蒽 超临界乙醇 萃取率 

分 类 号：TQ522[化学工程—煤化学工程]