Process for converting ammonium imidodisulfate, ammonium sulfamate and ammonium dithionate to sulfur dioxide and ammonia

Process for converting ammonium imidodisulfate, ammonium sulfamate and ammonium dithionate to sulfur dioxide and ammonia

Ammonium imidodisulfate and ammonium sulfamate may be converted to sulfur dioxide and ammonia by heating them with a reducing agent or a catalyst in a bath of molten ammonium sulfate and ammonium bisulfate. The reducing agent is sulfur or a sulfur compound and the catalyst is selected from Mo, W, Cu...

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Bibliographische Detailangaben
Hauptverfasser: FRANCKOWIAK, SIGISMOND, DESCHAMPS, ANDRE, GRUHIER, HENRI, DEZAEL, CLAUDE
Format: Patent
Sprache:eng
Schlagworte:
AMMONIA
CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY
CHEMISTRY
COMPOUNDS THEREOF
CYANOGEN
INORGANIC CHEMISTRY
METALLURGY
NON-METALLIC ELEMENTS
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
THEIR RELEVANT APPARATUS
TRANSPORTING
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Beschreibung
Zusammenfassung:Ammonium imidodisulfate and ammonium sulfamate may be converted to sulfur dioxide and ammonia by heating them with a reducing agent or a catalyst in a bath of molten ammonium sulfate and ammonium bisulfate. The reducing agent is sulfur or a sulfur compound and the catalyst is selected from Mo, W, Cu, Fe, Co, Cr, Mn and Ni.