Studien zum Vorgang der Wasserstoffübertragung, 77 [1] Hydrierungs-und Desulfurierungsstudien mit Raney-Nickel und Nickel-Träger-Katalysatoren Studies on the Occurrence of Hydrogen Transfer, 77 [1] Hydrogenation and Desulfurization Studies with Raney-Nickel and Nickel Support Catalysts

Abstract

Abstract To characterize nickel catalysts the capability for the hydrogenation and desulfurization under standard conditions is investigated. Depending on the conditions for the preparation the catalysts are subdivided in four classes: Raney-nickel-type, two types of nickel support catalysts and nickel-Al2O3-borides. Table I shows the rates of the hydrogenation of sodium cinnamate and the values for the desulfurization of diphenylsulfide, carbondisulfide and sodiumthiosulfate. The values for the specific surface, for the volume of the pores and for the adsorption energies are determined (Table II). ESCA-measurements give an orienting impression on the composition of the surface of some selected catalysts (Table III). Table IV contains some analytical values for the nickel-Al2O3 -borides. The capability for the magnetizability of some catalysts before and after the desulfurization is registrated qualitatively.