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Efficient extraction of direct coal liquefaction residue with the bmim Cl/NMP mixed solvent
Alternative TitleRSC Adv.
Li, Y.; Zhang, X. P.; Dong, H. F.; Wang, X. L.; Nie, Y.; Zhang, S. J.
2011
Source PublicationRsc Advances
Issue8Pages:1579-1584
AbstractA novel solvent mainly consisting of ionic liquid 1-butyl-3-methylimidazolium chloride ([bmim] Cl) and N-methyl pyrrolidinone (NMP), was used to treat Direct Coal Liquefaction Residue (DCLR). The aim was to extract an important organic precursor compound from the DCLR as the raw material of carbon fibers. The performance of extraction and properties of the extract with the mixed solvent were analyzed and characterized by FT-IR, solid state (13)C-NMR, DTA, micrograph and elemental analysis. The results showed that the mixed solvent was efficient to extract organic components from DCLR, but inert to inorganic substances. Adding NMP into [bmim]Cl not only accelerated the solid-liquid separation after the dissolution of DCLR, but also increased the extract yield. The possible synergistic mechanism was proposed based on the characteristic results. NMP in the mixture plays an important role to swell the fixed carbons contained in DCLR, and the ionic liquid [bmim]Cl contributes to destroying hydrogen bond forces in DCLR.
KeywordIonic Liquid Carbon Nanotubes Technologies Dissolution Solvation
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Indexed BySCI
Language英语
Document Type期刊论文
Version出版稿
Identifierhttp://ir.ipe.ac.cn/handle/122111/6318
Collection研究所(批量导入)
Recommended Citation
GB/T 7714
Li, Y.,Zhang, X. P.,Dong, H. F.,et al. Efficient extraction of direct coal liquefaction residue with the bmim Cl/NMP mixed solvent[J]. Rsc Advances,2011(8):1579-1584.
APA Li, Y.,Zhang, X. P.,Dong, H. F.,Wang, X. L.,Nie, Y.,&Zhang, S. J..(2011).Efficient extraction of direct coal liquefaction residue with the bmim Cl/NMP mixed solvent.Rsc Advances(8),1579-1584.
MLA Li, Y.,et al."Efficient extraction of direct coal liquefaction residue with the bmim Cl/NMP mixed solvent".Rsc Advances .8(2011):1579-1584.
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