An evidence for the strong association of N -methyl-2-pyrrolidinone with some organic species in three Chinese bituminous coals
作者: ChanMin LiuZhiMin ZongJiXian JiaGuangFeng LiuXianYong Wei
作者单位: 1School of Chemical Engineering, China University of Mining and Technology
2School of Life Sciences, Xuzhou Normal University
3Key Laboratory of Coal Conversion and New Carbon Materials of Hubei Province, Wuhan University of Science and Technology
刊名: Chinese Science Bulletin, 2008, Vol.53 (8), pp.1157-1164
来源数据库: Springer Journal
DOI: 10.1007/s11434-007-0509-1
关键词: N -methyl-2-pyrrolidinonebituminous coalsassociationGC/MS analysis
英文摘要: Abstract(#br)Three Chinese bituminous coals collected from Shenfu, Heidaigou and Feicheng coal fields were respectively extracted with carbon-disulfide/ N -methyl-2-pyrrolidinone (CS 2 /NMP) mixed solvent (volume ratio 1:1) at room temperature followed by distillation of CS 2 under ambient pressure and subsequent removal of most of NMP by distillation at 110°C under reduced pressure to afford mixed solvent-extractable fractions (MSEFs) with small amount of NMP. Acetone-extractable fraction 1 (AEF1) was obtained by extracting each MSEF under ultrasonic irradiation at room temperature and subsequently using a Soxhlet extractor. Direct extraction of each bituminous coal affords acetone-soluble fraction 2 (AEF2). GC/MS analysis shows that m/z of base or secondary peak in mass spectra of a...
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影响因子:1.319 (2012)

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关键词翻译
关键词翻译
  • bituminous 含沥青的
  • organic 有机的
  • three 
  • methyl 甲基
  • strong 
  • evidence 
  • species 
  • Chinese 汉语
  • association 联合