A. Lycourghiotis, N. Katsanos, I. Hadzistelios
Mar 1, 1975
Citations
0
Influential Citations
9
Citations
Journal
Journal of Catalysis
Abstract
Abstract The stopped-flow technique was used to elucidate the mechanistic scheme of dehydrobromination of 1-bromo-2-methylpropane on alumina modified with alkali-metal chlorides. The main product was 2-methylpropene, and it was found to be formed both directly from 1-bromo-2-methylpropane, and through isomerization of the latter to 2-bromo-2-methylpropane. Small amounts of water adsorbed on the surfaces increase the catalytic activity and decrease the retention volumes of the various substances. Hydrogen bromide produced in the reactions does not seem to affect the catalysts. Rate constants at various temperatures and Arrhenius parameters have been determined in order to compare the catalytic activity of the surfaces used.