@article { ISI:000256178900021,
	title = {Heteropolyacid supported on acidic clay: a novel efficient catalyst for alkylation of ethylbenzene with dilute ethanol to diethylbenzene in presence of C-8 aromatics},
	journal = {Journal of Molecular Catalysis A-Chemical},
	volume = {285},
	number = {1-2},
	year = {2008},
	month = {APR},
	pages = {155-161},
	publisher = {ELSEVIER SCIENCE BV},
	type = {Article},
	address = {PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS},
	abstract = {<p>Vapor phase alkylation of ethylbenzene with ethanol to diethylbenzene is industrially relevant. Diethylbenzene is an important raw material for the conversion of divinyl benzene monomer. Conventionally, it is prepared from diacetophenone by reduction. It is also prepared by vapor phase alkylation of ethylbenzene with ethylene using zeolitic catalysts. The efficacy of dodecatungsotphosphoric acid (DTPA) supported on acid treated clay has been evaluated in the current work in the alkylation of ethylbenzene with 80\% (w/w) ethanol. 15\% (w/w) DTPA/K-10 clay was found to be an efficient and robust catalyst. The use of aqueous ethanol and a mixed C-8 stream lowers the cost of production. A kinetic model is developed by studying the important process parameters with 15\% (w/w) DTPA/K-10 as the catalyst. (c) 2008 Elsevier B.V. All rights reserved.</p>},
	keywords = {Alkylation, diethylbenzene, Heteropolyacid, kinetics, Solid acids},
	issn = {1381-1169},
	doi = {10.1016/j.molcata.2007.11.018},
	author = {Bokade, Vijay V. and Yadav, Ganapati D.}
}
@article { ISI:000266185600012,
	title = {Selective N-alkylation of aniline with methanol over a heteropolyacid on montmorillonite K10},
	journal = {Applied Clay Science},
	volume = {44},
	number = {3-4},
	year = {2009},
	month = {MAY},
	pages = {255-258},
	publisher = {ELSEVIER SCIENCE BV},
	address = {PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS},
	abstract = {<p>N-methylaniline is an industrially important product in the manufacture of paper, textile dyes, drugs, perfumes and explosives. The vapour phase alkylation of aniline with methanol forming N-methylaniline is advantageous over liquid phase alkylation. In present study, vapour phase methylation of aniline over dodecatungestophosphoric acid supported on K10 montmorillonite was systematically studied and optimization of process parameters was carried out. The 20\% m/m DTPA/K10 was found to be optimum with 79\% aniline conversion and 99\% N-methylaniline selectivity. The reaction required milder operating conditions than reported for commercial catalysts. We also studied the feasibility of 20\% m/m DTPA/K10 as a catalyst for the alkylation of aniline with other alcohols like ethanol, n-propanol, iso-propanol and n-butanol. The activity of 20\% m/m DTPA/K10 decreased with increasing carbon number. (C) 2009 Elsevier B.V. All rights reserved.</p>},
	keywords = {Alkylation, Aniline, Heteropolyacid, montmorillonite K10, N-methylaniline},
	issn = {0169-1317},
	doi = {10.1016/j.clay.2009.02.011},
	author = {Nehate, Manoj and Bokade, Vijay V.}
}
