FIELD: metallurgy.
SUBSTANCE: invention relates to the metallurgy, in particular to method of complex ores preparation for acid leaching with extraction of the non-ferrous, rare, rare-earth metals (R&REM) and platinum-group metals (PGMs). The method of complex ores preparation for leaching includes crushing, grinding of the feed stock containing the organic substance, non-ferrous, rare, rare-earth metals and platinum-group metals, classification and further acid leaching. Feed stock is crushed to output grain size 0.2-0.1mm. Classification is performed in the hydraulic cyclone with division to sand fraction and drainage (sludge part), that after removal of the alumina with residues of silicon dioxide and organic substance is delivered for acid leaching together with sand fraction. The acid leaching is performed by two stages.
EFFECT: complex extraction of the specified metals from having complex composition ore upon sufficient economical crushing of the input material.
4 tbl
| Title | Year | Author | Number |
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| PROCEDURE FOR EXTRACTION OF METALS OUT OF MINERAL RAW MATERIALS | 2009 |
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| METHOD OF OBTAINING POTASSIUM ALUM | 2013 |
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| PROCESSING METHOD OF BLACK-SHALE ORES | 2011 |
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| METHOD FOR GOLD EXTRACTION FROM ORES | 2006 |
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| METHOD OF PROCESSING CLAYEY GOLD-CONTAINING ORES | 1996 |
|
RU2122471C1 |
| METHOD OF EXTRACTION OF URANIUM FROM ORES | 2000 |
|
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| METHOD FOR PROCESSING SULPHIDE POLYMETALLIC MATERIALS CONTAINING PLATINUM METALS (VARIANTS) | 2017 |
|
RU2667192C1 |
| PROCESSING METHOD OF BLACK-SHALE ORES WITH RARE METALS EXTRACTING | 2011 |
|
RU2493272C2 |
| METHOD FOR COMPLEX EXTRACTION OF GROUP 1 AND GROUP 8 METALS | 2018 |
|
RU2692341C1 |
