【摘 要】
：
Ultrasonic-assisted extraction (UAE) combined with medium pressure liquid chromatography (MPLC) was de-signed for carbazole separation from anthracene slag (AS)
【机 构】
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Key Laboratory of Coal Processing and Efficient Utilization, Ministry of Education, China University
论文部分内容阅读
Ultrasonic-assisted extraction (UAE) combined with medium pressure liquid chromatography (MPLC) was de-signed for carbazole separation from anthracene slag (AS). The effects of liquid/solid ratio, temperature, and ex-traction times on carbazole separation were investigated. When using CCl4 and ethyl acetate as extraction solvents and combining with MPLC, carbazole recovery and purity are 75.1％and 95.4％, respectively. The mech-anism 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.
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