METHOD OF EXTRACTION OF PALLADIUM FROM WASTES

FIELD: hydrometallurgy of noble metals; direct methods of extraction of palladium from wastes of electronic, chemical, electrochemical and jewelry industries. ^ SUBSTANCE: proposed method includes dissolving palladium and reducing it from solutions. Dissolving is performed with aqueous solution cont...

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Bibliographische Detailangaben
Hauptverfasser:	SYSOEV JU.M, KVARATSKHELI JU.K, DEMIN JU.V, MEL'NIKOV S.I
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
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Beschreibung
Zusammenfassung:	FIELD: hydrometallurgy of noble metals; direct methods of extraction of palladium from wastes of electronic, chemical, electrochemical and jewelry industries. ^ SUBSTANCE: proposed method includes dissolving palladium and reducing it from solutions. Dissolving is performed with aqueous solution containing 100-140 g/l of potassium iodide, 60-80 g/l of iodine, 20-40 g/l of triethnalamine and 5-20 g/l of potassium hydroxide; process is performed at temperature of 20-40°C. ^ EFFECT: increased selectivity of dissolving palladium. ^ 3 cl, 3 tbl, 1 ex