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N-甲基-2-吡咯烷酮与3种国产烟煤中某些有机物的强烈缔合作用 被引量：5

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摘要 用二硫化碳/N-甲基-2-吡咯烷酮(CS2/NMP)混合溶剂(体积比1:1)在室温下通过超声辐射分别萃取了采自神府、黑岱沟和肥城煤田的3种国产烟煤,常压蒸馏除去CS2并在110℃下减压蒸馏除去大部分NMP后得到含少量NMP的混合溶剂萃取物(MSEFs).用丙酮在室温下通过超声辐射和索氏萃取分离各MSEF,得到MSEF的丙酮萃取物(AEF1);用丙酮直接萃取烟煤,得到烟煤的丙酮萃取物(AEF2).GC/MS分析表明,AEF1中一系列成分的质谱基峰和次峰的m/z为98,而在AEF2中没有检测出这些成分.NMP本身的质谱基峰m/z为99,m/z为98的质谱基峰和次峰应该是NMP失去一个α-H形成的,即NMP与3种烟煤中的某些有机物(OSs)发生了强烈的缔合作用,所检测出的质谱基峰和次峰的m/z为98的成分应该是NMP-OS缔合体。
作者 刘缠民 宗志敏 贾吉仙 刘广峰 魏贤勇
机构地区 中国矿业大学化学工程学院
出处 《科学通报》 CAS CSCD 北大核心 2008年第2期183-190,共8页 Chinese Science Bulletin
基金 国家自然科学基金西部能源重大研究计划重点项目(批准号:90410018) 面上项目(批准号:90510008) 国家自然科学基金(批准号:20676142) 教育部科学技术研究重点项目(批准号:104031) 江苏省普通高校高新技术产业发展重点项目(批准号:JHB05-33)
关键词 N-甲基-2-吡咯烷酮 烟煤 缔合 GC/MS分析
分类号 TQ531 [化学工程—煤化学工程]
  • 相关文献

参考文献10

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二级参考文献20

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科学通报
2008年 第2期

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