DEHYDROGENATION CATALYST AND ITS USE

摘要

The dehydrogenation catalyst contains a) 40 to 90 % by weight of an iron compound, calculated as Fe2O3, b) 5 to 40 % by weight of a potassium compound, calculated as the most stable oxide, c) 1 to 15 % by weight of a tungsten compound, calculated as WO3, and d) 0.1 to 15 % by weight of at least one compound of Sc, Y, La, Cr, Al and/or rare earths, calculated as the oxide, and additionally e) 0.1 to 15 % by weight of at least one compound of Zn, Cd and/or the alkaline earth metals, calculated as the oxide. The catalyst is preferably used for the dehydrogenation of ethylbenzene to styrene.