By a News Reporter-Staff News Editor at Chemicals & Chemistry -- New research on Solvents is the subject of a report. According to news reporting out of Jiangsu, People’s Republic of China, by VerticalNews editors, research stated, “In order to find the ionic liquids (ILs) which can significantly suppress coal oxidation, nine imidazolium-based ILs, [EMIm][BF4], [EMIm] Ac, [BMIm][BF4], [BMIm] Ac, [AMIm][BF4], [HOEtMIm][BF4], [HOEtMIm][NTf2], [AOEMIm][BF4] and [EOMIm][BF4], were used to treat lignite sample to reveal the inhibitory effect of ILs on coal oxidation activity. The TGA results showed that the ILs can reduce the mass loss of coal, of which the ILs [HOEtMIm][BF4] and [HOEtMIm][NTf2] showed the strongest reducing effect, while the IL [AMIm][BF4] showed the weakest reducing effect.”
Funders for this research include National Natural Science Foundation of Jiangsu, State Key Laboratory of Coal Resources and Safe Mining.
Our news journalists obtained a quote from the research from the China University of Mining and Technology, “Differential thermal analysis (DTA) results indicated that the heat release of [HOEtMIm][BF4] and [HOEtMIm][NTf2]-treated coal were very less. At the same time, the oxidation reactions of the two coals were delayed. IR results showed that ILs treatment can effectively destroy the associated hydroxyl in coal and change the content of carbonyl and ether bonds. In the process of coal oxidation, the oxidation activity of hydrogen bonding, ether bonds in [HOEtMIm][BF4] and [HOEtMIm][NTf2]-treated coal were weakened significantly at the initial oxidation process. With the oxidation processing, the content of generated carbonyl was reduced.”
According to the news editors, the research concluded: “The micro mechanism of the reduced coal oxidation activity was ascribed to the weaker oxidation activity of the ether bonds and the inhibited formation of the carbonyl groups.”
For more information on this research see: Influence of imidazolium-based ionic liquids on coal oxidation. Fuel , 2018;217():529-535. Fuel can be contacted at: Elsevier Sci Ltd, The Boulevard, Langford Lane, Kidlington, Oxford OX5 1GB, Oxon, England. (Elsevier - www.elsevier.com; Fuel - http://www.journals.elsevier.com/fuel/)
Our news journalists report that additional information may be obtained by contacting W.Q. Zhang, China Univ Min & Technol, State Key Lab Coal Resources & Safe Min, Xuzhou 221116, Jiangsu, People’s Republic of China. Additional authors for this research include S.G. Jiang, Z.Y. Wu, K. Wang, H. Shao, T. Qin, X. Xi and H.B. Tian.
The direct object identifier (DOI) for that additional information is: https://doi.org/10.1016/j.fuel.2017.12.056. This DOI is a link to an online electronic document that is either free or for purchase, and can be your direct source for a journal article and its citation.
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CITATION: (2018-04-13), New Data from China University of Mining and Technology Illuminate Findings in Solvents (Influence of imidazolium-based ionic liquids on coal oxidation), Chemicals & Chemistry, 1943, ISSN: 1944-1525, BUTTER® ID: 015479675
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