Method and device for producing a controlled atmosphere with low oxygen partial pressure

The present invention concerns a method for producing a controlled atmosphere having an oxygen partial pressure of below 10 Pa and an operating temperature above 1000 DEG C. According to the invention a furnace is vented by a gas mixture having an oxygen partial pressure lower than 10 Pa but higher...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	STEEN, MARC, HARRISON, VICTOR, HOFFMANN, MICHAEL, DANZER, ROBERT -DR
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	BLASTING CARBURETTING AIR OR OTHER GASES CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS,IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KINDOF FURNACE FUELS FURNACES HEATING INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES KILNS LIGHTING LUBRICANTS MEASURING MECHANICAL ENGINEERING METALLURGY OVENS PEAT PERFORMING OPERATIONS PETROLEUM, GAS OR COKE INDUSTRIES PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL PHYSICS PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROMSOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES RETORTS TECHNICAL GASES CONTAINING CARBON MONOXIDE TESTING THEIR RELEVANT APPARATUS TRANSPORTING WEAPONS
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Beschreibung
Zusammenfassung:	The present invention concerns a method for producing a controlled atmosphere having an oxygen partial pressure of below 10 Pa and an operating temperature above 1000 DEG C. According to the invention a furnace is vented by a gas mixture having an oxygen partial pressure lower than 10 Pa but higher than that of said controlled atmosphere, and that a partial volume of said furnace is submitted to a static electric field having a strength of at least 6 V/cm and reducing the oxygen partial pressure in this partial volume by orders of magnitude. The invention also relates to a device for implementing this method.