Hydrogen iodide decomposition

Hydrogen iodide decomposition

Hydrogen iodide is efficiently decomposed to hydrogen and iodine by treatment in the liquid phase with a platinum group metal catalyst. At temperatures between about 0 DEG C. and about 150 DEG C. and pressures sufficiently high to maintain the liquid phase, at least about 50 percent of the hydrogen...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: WILLIAMSON, DAVID G, O'KEEFE, DENNIS R
Format: Patent
Sprache:eng
Schlagworte:
CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY
CHEMISTRY
COMPOUNDS THEREOF
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:Hydrogen iodide is efficiently decomposed to hydrogen and iodine by treatment in the liquid phase with a platinum group metal catalyst. At temperatures between about 0 DEG C. and about 150 DEG C. and pressures sufficiently high to maintain the liquid phase, at least about 50 percent of the hydrogen iodide present can be decomposed at a reasonable rate of reaction. The hydrogen which is created is easily separated as a gas. Exemplary catalysts include platinum particles and supported catalysts, such as ruthenium on a titania substrate and platinum on a barium sulfate substrate.