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Title:
METHOD AND DEVICE FOR BURNING OFF NOBLE METAL-CONTAINING MATERIALS
Document Type and Number:
WIPO Patent Application WO/2017/008955
Kind Code:
A3
Abstract:
Method for removing inorganically and/or organically bound carbon from a noble metal-containing composition in a furnace chamber that comprises at least one direct burner and at least one exhaust gas line. The method is characterized by the following steps: a) making available a noble metal-containing composition with concentrations of inorganically and/or organically bound carbon in the furnace chamber, b) closing the furnace chamber, c) heating the content of the furnace chamber using at least one direct burner to adjust a temperature (T1) in the range of 450° to 1000°C and maintaining the temperature (T1) for 5 min to 48 hrs. Once the furnace chamber is closed gas can be exchanged between the furnace chamber and the environment only via the at least one direct burner and the at least one exhaust gas line.

Inventors:
MEYER, Horst (Auf dem Hansenberg 47, Altenstadt, 63674, DE)
VOSS, Steffen (Dolmenring 14, Limeshain, 63694, DE)
ROMERO, Jose Manuel (Goethestraße 68 A, Hanau, 63457, DE)
Application Number:
EP2016/062878
Publication Date:
January 19, 2017
Filing Date:
June 07, 2016
Export Citation:
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Assignee:
HERAEUS DEUTSCHLAND GMBH & CO. KG (Heraeusstr. 12-14, Hanau, 63450, DE)
International Classes:
C22B11/02
Domestic Patent References:
WO2007036334A22007-04-05
Foreign References:
DE2807402A11979-02-22
Other References:
HOLLMANN A: "EDELMETALL-RECYCLING: VERSCHWELUNG STATT VERBRENNUNG", WASSER, LUFT UND BODEN, VEREINIGTE FACHVERLAG, MAINZ, DE, vol. 3, 1 January 2000 (2000-01-01), pages 45 - 47, XP009071079, ISSN: 0938-8303
Attorney, Agent or Firm:
HERAEUS IP (Heraeus Holding GmbH, Heraeusstr. 12 - 14, Hanau, 63450, DE)
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