METHOD FOR EXTRACTING OF NOBLE METALS FROM NOBLE METAL-CONTAINING MATERIAL

• Main Authors: CHERNYSHEV V.I, ODINETS VALERIJ MAR'JANOVICH, TERTYSHNYJ I.G
• Format: Patent
• Language: English; Russian
• Published: 20.02.2004
• Edition: 7
• Subjects: 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

FIELD: extraction of noble metals from sludge, used catalysts, ore etc. SUBSTANCE: method involves treating basic material with reactant solution while exposing to microwave field and transferring metals in solution. Treatment of basic material is performed with the use of acid and/or oxidizer used as reactant for producing of suspension from basic material and reactant solution. Power generated in unit of volume of suspension is maintained in the range of 100-10,000 kW/cu.m. Radiation is provided until suspension reaches boiling temperature. EFFECT: increased extent of noble metal extraction owing to availability of known range of required power. 3 cl, 13 ex