PROCESS AND DEVICE FOR BURN-OFF OF PRECIOUS METAL-CONTAINING MATERIALS

Process for removing inorganically- and/or organically-bound carbon from a precious metal-containing composition inside an oven chamber comprising at least one direct burner and at least one exhaust gas conduit, characterised by the sequence of steps of: a) providing a precious metal-containing comp...

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Bibliographische Detailangaben
Hauptverfasser:	Romero, Jose Manuel, Meyer, Horst, Voss, Steffen
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMISTRY DESTRUCTIVE DISTILLATION OF CARBONAGEOUS MATERIALS FORPRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS FERROUS OR NON-FERROUS ALLOYS FUELS LUBRICANTS METALLURGY PEAT PETROLEUM, GAS OR COKE INDUSTRIES PRETREATMENT OF RAW MATERIALS PRODUCTION AND REFINING OF METALS TECHNICAL GASES CONTAINING CARBON MONOXIDE TREATMENT OF ALLOYS OR NON-FERROUS METALS
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Beschreibung
Zusammenfassung:	Process for removing inorganically- and/or organically-bound carbon from a precious metal-containing composition inside an oven chamber comprising at least one direct burner and at least one exhaust gas conduit, characterised by the sequence of steps of: a) providing a precious metal-containing composition comprising fractions of inorganically- and/or organically-bound carbon inside the oven chamber; b) closing the oven chamber; c) heating the content of the oven chamber by means of at least one direct burner in order to establish a temperature T1 in the range of 450° C. to 1,000° C. and maintaining temperature T1 for 5 min-48 h; whereby, once the oven chamber is closed, any gas exchange between the oven chamber and the surroundings can take place only via the at least one direct burner and the at least one exhaust gas conduit.