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- W2462035251 abstract "N-Alkylation of aniline with ethanol has been studied in vapour phase, in a fixed bed reactor over Zn 1 x Mn x Fe 2 O 4 (X= 0, 0.25, 0.50, 0.75 and 1) ferrospinel system. N-ethylaniline (NEA) and N,N-diethylanilines (NNDEA)were found to be the major products. It was observed, that, systems possessing low x values are highly selective for N-ethylaniline. Reaction parameters were optimized over ZnFe 2 O 4 catalyst. A maximum yield of 53% of N-ethylaniline with Selectivity of 97% and 1.79% of N, N-diethylaniline with selectivity of 3% was obtained over ZnFe 2 O 4 catalyst at a temperature of 503 K, ethanol to aniline molar ratio 6 and weight hour space velocity of 0.17 h - 1 . Catalyst characterization has been made by XRD, IR spectroscopy and ammonia desorption methods. All catalysts show their characteristic M-O stretching bands around 700 and 500 cm - 1 associated with tetrahedral and octahedral sites respectively. All catalysts were found to show weak, medium and strong acidic sites corresponding to ammonia desorption at different temperature ranges 423-523, 523-623 and 623-723 K. A tentative mechanism for production of N-ethylanilines has been proposed." @default.
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- W2462035251 date "2004-03-01" @default.
- W2462035251 modified "2023-09-26" @default.
- W2462035251 title "Alkylation of aniline with ethanol over Zn 1-x Mn x Fe 2 O 4 (x= 0, 0.25, 0.50, 0.75 and 1) ferrite system" @default.
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