摘要
煤焦油是高附加值稠环芳烃的主要来源,甚至是某些芳香族化合物的唯一来源。先用纯石油醚,再用乙酸乙酯体积分数为5%和30%的石油醚/乙酸乙酯混合溶剂依次作为洗脱剂,采用柱层析法对高温煤焦油的石油醚萃取物洗脱,得到洗脱液1-3(E_(1)-E_(3))。在E_(1-6)和E_(1-10)中富集到5种四环稠环芳烃,其中荧蒽在E_(1-10)中相对含量达71.02%。此外,在E_(2-2)中富集到6种酚类和9种氮杂环芳香族化合物,在E_(3-2)中富集到7种1~4环的氮杂环芳香族化合物。
Coal tar is an important source for producing high value-added aromatic hydrocarbons,even the unique source for some polycyclic aromatic hydrocarbons.In this work,the petroleum ether extractable fraction from a high-temperature coal tar was sequentially eluted by column chromatography with petroleum ether,petroleum ether/ethyl acetate mixed solvent with ethyl acetate volume content of 5% and 30%,to afford eluates 1-3(E_(1) to E_(3)),respectively.As a result,5 polycyclic aromatic hydrocarbons with 4 rings were isolated in E_(1-6) and E_(1-10),especially for fluoranthene with relative content of 71.02% in the E1-10.9 nitrogen-containing aromatics and 6 phenolic compounds in E_(2-2).7 nitrogen-containing aromatics and with 1 to 4 rings were also isolated in E_(3-2).
作者
马启源
左岳
梁政勇
李鹏
Ma Qiyuan;Zuo Yue;Liang Zhengyong;Li Peng(School of Chemical Engineering,Zhengzhou University,He'nan,450001;Coal-based Ecological Fine Chemical Engineering Laboratory of Henan Province,He'nan,454650)
出处
《当代化工研究》
CAS
2024年第3期51-53,共3页
Modern Chemical Research
基金
国家自然科学基金-面上项目“煤基杂原子原位掺杂活性炭纤维的可控制备及其构效关系研究”(项目编号:52174262)
中国博士后科学基金-第71批面上资助“基于靶点修饰的煤基复合碳纤维的可控制备与性能研究”(项目编号:2022M712881)
河南省省级科技研发计划联合基金项目-优势学科培育“基于靶点修饰的褐煤可溶化转化及煤基功能炭材料的制备和性能研究”(项目编号:222301420036)
煤基生态精细化工河南省工程实验室开放课题“煤沥青/PAN基复合电极材料的可控制备与性能研究”(项目编号:D202004)。
关键词
煤焦油
分离
柱层析
稠环芳烃
杂环芳香族化合物
coal tar
isolation
column chromatography
condensed arenes
heterocyclic aromatics
