Isolation and purification of carbazole contained in anthracene slag by extraction combined with medium pressure liquid chromatography  

作　　者：Zhihao Ma XianyongWei Mingyao Zhou Guanghui Liu Fangjing Liu Zhongqiu Liu Xinyue Yu Zhimin Zong 

机构地区：[1]Key Laboratory of Coal Processing and Efficient Utilization,Ministry of Education,China University of Mining&Technology,Xuzhou 221116,China [2]State Key Laboratory of High-efficiency Coal Utilization and Green Chemical Engineering,Ningxia University,Yinchuan 750021,China

出　　处：《Chinese Journal of Chemical Engineering》2019年第12期2925-2929,共5页中国化学工程学报（英文版）

基　　金：Supported by the Key Project of Joint Fund for the research on Coal-Based Low Carbon Technology from National Natural Science Foundation of China and the Government of Shanxi(U1610223);Coal-based Key Scientific and Technological Projects of Shanxi Province(MJH2014-15);the National Key Research and Development Program of China(2018YFB0604602).

摘　　要：Ultrasonic-assisted extraction(UAE)combined with medium pressure liquid chromatography(MPLC)was designed for carbazole separation from anthracene slag(AS).The effects of liquid/solid ratio,temperature,and extraction times on carbazole separation were investigated.When using CC14 and ethyl acetate as extraction solvents and combining with MPLC,carbazole recovery and purity are 75.1%and 95.4%,respectively.The mechanism for carbazole separation were presumed by examining intermolecular interactions such as N-H…π,π-π,and C-Cl…πinteractions.These results demonstrate that UAE/MPLC has a considerable potential as a green and promising strategy for separating and purifying carbazole and other chemicals from AS.Ultrasonic-assisted extraction(UAE) combined with medium pressure liquid chromatography(MPLC) was designed for carbazole separation from anthracene slag(AS).The effects of liquid/solid ratio,temperature,and extraction times on carbazole separation were investigated.When using CC14 and ethyl acetate as extraction solvents and combining with MPLC,carbazole recovery and purity are 75.1% and 95.4%,respectively.The mechanism for carbazole separation were presumed by examining intermolecular interactions such as N-H…π,π-π,and C-Cl…π interactions.These results demonstrate that UAE/MPLC has a considerable potential as a green and promising strategy for separating and purifying carbazole and other chemicals from AS.

关 键 词：Anthracene SLAG ULTRASONIC-ASSISTED EXTRACTION Medium pressure liquid chromatography INTERMOLECULAR interactions 

分 类 号：O658[理学—分析化学]