Calcining complexes and compounds containing precious metals comprises heating the educts partially with non-pulsed or pulsed microwave radiation to decompose the educts to the corresponding precious metal

Process for calcining complexes and compounds containing precious metals comprises heating the educts partially with non-pulsed or pulsed microwave radiation to decompose the educts to the corresponding precious metal. Preferred Features: The microwave radiation used lies in the frequency range of 3...

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Bibliographische Detailangaben
Hauptverfasser:	PADTBERG, CHRISTOPH, GERDES, THORSTEN, BAHKE, PHILIP, BURGHARDT, RUDOLF, KLEINWAECHTER, INGO
Format:	Patent
Sprache:	eng ; ger
Schlagworte:	CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS ELECTRIC HEATING ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR ELECTRICITY FERROUS OR NON-FERROUS ALLOYS GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS METALLURGY PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL PRETREATMENT OF RAW MATERIALS PRODUCTION AND REFINING OF METALS TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE THEIR RELEVANT APPARATUS TRANSPORTING TREATMENT OF ALLOYS OR NON-FERROUS METALS
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Beschreibung
Zusammenfassung:	Process for calcining complexes and compounds containing precious metals comprises heating the educts partially with non-pulsed or pulsed microwave radiation to decompose the educts to the corresponding precious metal. Preferred Features: The microwave radiation used lies in the frequency range of 300 MHz to 30 GHz. The microwave power is not pulsed to keep the field strength required for heating as low as possible. Calcination is carried out in a heated tubular furnace, rotating furnace or in a heated sintering furnace. A carrier gas selected from N2, H2, Ar, CO, O2, CO2, steam or a mixture of these is used in the process. The precious metals are platinum, rhodium or palladium. Gegenstand der Erfindung ist daher ein Verfahren zur Calcinierung von edelmetallhaltigen Komplexen und Verbindungen, das dadurch gekennzeichnet ist, dass man die Edukte zumindest teilweise mit ungepulster oder gepulster Mikrowellenstrahlung so weit aufheizt, dass diese zum entsprechenden Edelmetall zersetzt werden. Als Edelmetalle seien insbesondere Platin, Rhodium oder Palladium und deren Mischungen genannt.