METHOD OF PREPARING HYDROXYLAMMONIUM SALTS

chemical industry. SUBSTANCE: hydroxylammonium salt is prepared by catalytically reducing nitrate ions in acid medium in the presence of activated catalyst which contains support particles with metallic particles comprising palladium and platinum. Relative concentrations of palladium and platinum in...

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Bibliographische Detailangaben
Hauptverfasser:	PETER ARNOL'D SESILIAN SKHEVELIR, LEONARDUS LEFFERTS, LAMBERTUS KHJUBERTUS VIL'KHEL'MUS MARIJA VAN LISKH
Format:	Patent
Sprache:	eng
Schlagworte:	ACYCLIC OR CARBOCYCLIC COMPOUNDS AMMONIA CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY COMPOUNDS THEREOF CYANOGEN INORGANIC CHEMISTRY METALLURGY NON-METALLIC ELEMENTS ORGANIC CHEMISTRY PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL THEIR RELEVANT APPARATUS TRANSPORTING
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Beschreibung
Zusammenfassung:	chemical industry. SUBSTANCE: hydroxylammonium salt is prepared by catalytically reducing nitrate ions in acid medium in the presence of activated catalyst which contains support particles with metallic particles comprising palladium and platinum. Relative concentrations of palladium and platinum in each metallic particle are substantially identical. Palladium to platinum ratio in each metallic particle varies from 7:3 to 9.9:0.1. Support includes activated carbon, graphite or silica with support particle size of 0.1-50 mcm. EFFECT: increased selectivity and activity of catalyst. 7 cl, 12 ex, 6 tbl