METHOD FOR REPROCESSING OF ALUMINOPLATINUM CATALYSTS, IN PARTICULAR, RHENIUM CONTAINING CATALYSTS

FIELD: metallurgy of rare and platinum metals. SUBSTANCE: method involves initially roasting catalyst at temperature of 300-450 C for 2-3 hours resulting in more complete transition of metals into solution; providing sulfide settling of platinum and rhenium with thioacetamide resulting in increased...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Hauptverfasser:	SHIPACHEV V.A, GORNEVA G.A
Format:	Patent
Sprache:	eng ; rus
Schlagworte:	CHEMISTRY CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS 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 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 TREATMENT OF ALLOYS OR NON-FERROUS METALS
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	FIELD: metallurgy of rare and platinum metals. SUBSTANCE: method involves initially roasting catalyst at temperature of 300-450 C for 2-3 hours resulting in more complete transition of metals into solution; providing sulfide settling of platinum and rhenium with thioacetamide resulting in increased extent of metal extraction. Besides, commercial crystalline aluminum trifluoride is produced, which is separated from fluoroaluminic acid by neutralizing it with aluminum hydroxide. Method is used at enterprises engaged in reprocessing of deactivated catalysts of chemical and petrochemical production. EFFECT: increased extent of extracting precious metals into composite concentrate and simplified separation and affinage stages. 2 cl, 2 ex