Supported Ionic Liquid Catalysts for the Oxidation of S- and N-Containing Compounds—The Effect of Bronsted Sites and Heteropolyacid Concentrationстатья
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Аннотация:In this article, a series of effective catalysts based on betaine and sulfuric or phosphomolybdicacids was obtained. These compositions were characterized by various physicochemical methodsand tested in the oxidation of sulfur- and nitrogenous-containing compounds by H2O2. An increasein the amount of heteropolyacid (HPA) leads to a non-linear change in acidity, and the degree ofremoval of sulfur-containing compounds correlates with the concentration of Bronsted acid sites onthe surface. On the contrary, the degree of pyridine removal is determined primarily by the contentof heteropolyacids in the catalyst.
