Separation of Acearylenes from High-Temperature Coal Tar

• Published in: Transactions of Tianjin University Vol. 18; no. 5; pp. 378 - 383
• Main Author: 周建石 马全领 宗志敏 魏贤勇
• Format: Journal Article
• Language: English
• Published: Heidelberg Tianjin University 01.10.2012; Key Laboratory of Coal Processing and Efficient Utilization of Ministry of Education, China University of Mining and Technology, Xuzhou 221008, China; Jiangsu Huaxin Technology Co., Ltd, Xuzhou 221008, China%Jiangsu Huaxin Technology Co., Ltd, Xuzhou 221008, China%Key Laboratory of Coal Processing and Efficient Utilization of Ministry of Education, China University of Mining and Technology, Xuzhou 221008, China
• Subjects: Engineering; Humanities and Social Sciences; Mechanical Engineering; multidisciplinary; Science; Sephadex; 乙酸乙酯; 提取分离; 核磁共振波谱仪; 气相色谱/质谱仪; 混合溶剂; 超声波照射; 高温煤焦油; acearylenes; coal tar; separation
• ISSN: 1006-4982; 1995-8196
• DOI: 10.1007/s12209-012-1742-5

High-temperature coal tar was extracted with petroleum ether （PE） under ultrasonic irradiation and the extracts were analyzed with gas chromatograph/mass spectrometer. The acearylene fractions including acenaphthylene, aceanthrylene and cyclopentapyrene were enriched together and named E, which was then transferred to a car- tridge in Isolera-One flash chromatography. Three groups of compounds were eluted out with ethyl acetate/PE mixed solvent （volume ratio 1：9） and named E1, E2 and E3 according to their main components. Acenaphthylene accounted for 78.2% in El, aceanthrylene 71.6% in E2 and cyclopentapyrene 75.9% in E3, respectively. The three groups of acearylenes were purified by Sephadex LH-20 column chromatography with ethanol/cyclohexane mixed solvent （vol- ume ratio 1：4）, and then confirmed with nuclear magnetic resonance spectrometer. This method indicates that flash chromatography has a good effect on separating the compounds with a similar structnre after extraction under ultrasonic irradiation.