SILICATE MINERAL DEGRADATION PROCESS

hydrometallurgy. SUBSTANCE: invention aims at degrading silicate ores and utilizing metallurgical slags as well as at creating low-waste plant for production of copper and zinc via processing of refused slags issuing from copper-smelting production. Preliminarily crushed mineral is mixed with sulfur...

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Bibliographische Detailangaben
Hauptverfasser:	D'JACHENKO A.N, GUZEEV V.V, ANDREEV G.G, KRASIL'NIKOV V.A, GUZEEVA T.I
Format:	Patent
Sprache:	eng
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:	hydrometallurgy. SUBSTANCE: invention aims at degrading silicate ores and utilizing metallurgical slags as well as at creating low-waste plant for production of copper and zinc via processing of refused slags issuing from copper-smelting production. Preliminarily crushed mineral is mixed with sulfuric acid and then calcium fluoride (activator) is added. Resulting mixture is heated to temperature between 80 and 320 C and aged for some time. Calcium fluoride can be substituted by naturally occurring mineral: fluorite containing 20% calcium fluoride. EFFECT: reduced expenses on reagents, reduced power consumption, and simplified equipment. 3 ex