REFINED SILVER PRODUCING METHOD
FIELD: noble metal metallurgy, namely processes for producing refined silver. ^ SUBSTANCE: method comprises steps of dissolving metallic silver in nitric-acid electrolyte at presence of hydrogen peroxide; separating non-soluble remainder; extracting silver out of electrolyte; returning electrolyte f...
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| creator | SHESTAKOVA RAISA DAVLETKHANOVNA TER-OGANESJANTS ALEKSANDR KARLOVICH ANISIMOVA NINA NIKOLAEVNA DYL'KO GEORGIJ NIKOLAEVICH KOTUKHOVA GALINA PETROVNA GORSHKOV VIKTOR IVANOVICH BARYSHEV ALEKSANDR ALEKSANDROVICH KHABIROVA ELENA KASIMOVNA |
| description | FIELD: noble metal metallurgy, namely processes for producing refined silver. ^ SUBSTANCE: method comprises steps of dissolving metallic silver in nitric-acid electrolyte at presence of hydrogen peroxide; separating non-soluble remainder; extracting silver out of electrolyte; returning electrolyte for dissolving metallic silver. Metallic silver is dissolved at its flow rate 1.9 -2.0 kg per kg of nitric acid contained in electrolyte. Powdered silver produced from silver chloride by hydro-chemical reduction is used as metallic silver. Silver is extracted out of electrolyte at content of nitric acid in electrolyte in range 30 - 50 g/dm3 and at temperature of electrolyte no more than 35°C. ^ EFFECT: simplified technological system for producing refined silver. ^ 2 tbl, 15 ex |
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Metallic silver is dissolved at its flow rate 1.9 -2.0 kg per kg of nitric acid contained in electrolyte. Powdered silver produced from silver chloride by hydro-chemical reduction is used as metallic silver. 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Metallic silver is dissolved at its flow rate 1.9 -2.0 kg per kg of nitric acid contained in electrolyte. Powdered silver produced from silver chloride by hydro-chemical reduction is used as metallic silver. Silver is extracted out of electrolyte at content of nitric acid in electrolyte in range 30 - 50 g/dm3 and at temperature of electrolyte no more than 35°C. ^ EFFECT: simplified technological system for producing refined silver. ^ 2 tbl, 15 ex</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | APPARATUS THEREFOR CHEMISTRY CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS ELECTROLYTIC OR ELECTROPHORETIC PROCESSES 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 PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY ORREFINING OF METALS 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 |
| title | REFINED SILVER PRODUCING METHOD |
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