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Catalytic Alkylation of Depolymerized Neyveli Lignite
Corresponding Author(s) : N. Krishnamurthy
Asian Journal of Chemistry,
Vol. 26 No. 13 (2014): Vol 26 Issue 13
Abstract
Catalytic alkylation of depolymerized Neyveli lignite was carried out with various alcohols as alkylating agents in presence of phosphotungstic acid as a catalyst. Alkylation was evident from the higher extractability of alkylated depolymerized lignite in various solvents. Hence it is proved three dimensionally bonded alkyl chains for coal structure cleaving of which by alkylation permits additional depolymerization. The IR and NMR spectra also conformed the alkylation reaction. A suitable alkylation mechanism is proposed. Thermogravimetric analysis results revealed enhanced thermal stability for alkylated depolymerized products.
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- K. Ouchi, K. Imuta and Y. Yamashita, Fuel, 44, 29 (1965).
- N. Krishnamurthy, M. Palanichamy, A. Chellamani, J. Arul Leo Bastin, M. Madasamy, P. Vallinayagam and D. Madhavan, Asian J. Chem., 25, 7437 (2013); doi:10.14233/ajchem.2013.14801.
- C. Kroger and H. de Vries, Justus Liebigs Ann. Chem., 652, 35 (1962); doi:10.1002/jlac.19626520106.
- C. Kroger, H.B. Rabe and B. Rabe, Erdol Kohle Erdgas Petrochem., 16, 21 (1963).
- R.H. Schlosberg, R.C. Neavel, P.S. Maa and M.L. Gorbaty, Fuel, 59, 45 (1980); doi:10.1016/0016-2361(80)90009-5.
- F. Mondragon, H. Itoh and K. Ouchi, Fuel, 61, 1131 (1982); doi:10.1016/0016-2361(82)90198-3.
- D.K. Sharma and S. Mishra, Fuel, 74, 913 (1995); doi:10.1016/0016-2361(95)00008-S.
- P.A. Nadar and N. Krishnamurthy, Indian J. Chem. Technol, 3, 351 (1996).
- A. Weissberger, Techniques of Chemistry, Organic Solvents, Physical Properties and Methods of Purification, Wiley Interscience, New York, Vol. 2 (1970).
- L.J. Darlage, J.P. Weidner and S.S. Block, Fuel, 53, 54 (1974); doi:10.1016/0016-2361(74)90033-7.
References
K. Ouchi, K. Imuta and Y. Yamashita, Fuel, 44, 29 (1965).
N. Krishnamurthy, M. Palanichamy, A. Chellamani, J. Arul Leo Bastin, M. Madasamy, P. Vallinayagam and D. Madhavan, Asian J. Chem., 25, 7437 (2013); doi:10.14233/ajchem.2013.14801.
C. Kroger and H. de Vries, Justus Liebigs Ann. Chem., 652, 35 (1962); doi:10.1002/jlac.19626520106.
C. Kroger, H.B. Rabe and B. Rabe, Erdol Kohle Erdgas Petrochem., 16, 21 (1963).
R.H. Schlosberg, R.C. Neavel, P.S. Maa and M.L. Gorbaty, Fuel, 59, 45 (1980); doi:10.1016/0016-2361(80)90009-5.
F. Mondragon, H. Itoh and K. Ouchi, Fuel, 61, 1131 (1982); doi:10.1016/0016-2361(82)90198-3.
D.K. Sharma and S. Mishra, Fuel, 74, 913 (1995); doi:10.1016/0016-2361(95)00008-S.
P.A. Nadar and N. Krishnamurthy, Indian J. Chem. Technol, 3, 351 (1996).
A. Weissberger, Techniques of Chemistry, Organic Solvents, Physical Properties and Methods of Purification, Wiley Interscience, New York, Vol. 2 (1970).
L.J. Darlage, J.P. Weidner and S.S. Block, Fuel, 53, 54 (1974); doi:10.1016/0016-2361(74)90033-7.