FIELD: 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
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF SEPARATING MINERAL OXIDE MIXTURE INTO INDIVIDUAL COMPONENTS | 2006 |
|
RU2324746C1 |
| METHOD FOR JOINTLY REUSING ZIRCONIUM DIOXIDE AND SILICON TETRAFLUORIDE | 2002 |
|
RU2225361C1 |
| METAL-CONTAINING ADDITIVE PRODUCING METHOD FOR METAL ALLOYING | 2006 |
|
RU2318885C1 |
| METHOD OF PRODUCTION OF HYDROGEN FLUORIDE AND ANHYDRITE | 1998 |
|
RU2161121C2 |
| METHOD OF PROCESSING MINERALS | 2010 |
|
RU2553150C2 |
| METHOD FOR DECOMPOSITION OF FLUOROAPATITE | 2001 |
|
RU2214963C2 |
| METHOD OF RECOVERING USEFUL MINERALS FROM ORE SLIMES | 1995 |
|
RU2099146C1 |
| METHOD FOR PRODUCING LIQUID GLASS | 2011 |
|
RU2480409C1 |
| METHOD OF CHLORO-AMMONIUM DEFERRIZATION OF MINERAL RAW MATERIALS | 2006 |
|
RU2314354C2 |
| METHOD OF PREPARING FINE POWDERS | 1998 |
|
RU2133218C1 |
