Showing papers on "Selective reduction published in 1976"

Catalyst for selective reduction of nitrogen oxides

Abstract: A catalyst for the selective reduction of nitrogen oxides in exhaust gases in the presence of ammonia is vanadium oxide supported on a specific carrier of the anatase form of titanium oxide

Selective hydrogenation of unsaturated compounds

Abstract: In a process for the catalytic hydrogenation of unsaturated compounds, which process is characterizable as employing for the active catalyst a glyoxime complexed with cobalt and a base, referred to as a cobaloxime catalyst, the improvement for obtaining increased conversion and/or yield comprising employing a large excess of the glyoxime complexing agent in the hydrogenation reaction. The invention is particularly applicable to the selective reduction of certain α,β-unsaturated aliphatic ketones and is described with reference to the highly selective hydrogenation of carvone to dihydrocarvone.