FIELD: mining.
SUBSTANCE: method involves drying of tailing massif, identification of an outline of supergene-converted horizon, separation of thickness of tailings into non-productive lean tailings from upper part of technogenic massives, which are not subject to supergene changes, and productive gothite-magnetite-hematite horizons formed during supergene conversion of technogenic mineral raw material, removal of upper non-productive horizons, extraction of gothite-magnetite-hematite horizon and its processing so that iron-ore concentrate is obtained. Iron-ore concentrate with total iron content of more than 60% is obtained by means of a gravitation-and-magnetic or magnetic method from gothite-magnetite-hematite horizon saturated with iron, which is formed in thickness of aged tailings.
EFFECT: improving efficiency of complex development of iron-ore deposits and processing of wastes of iron-ore production; reducing anthropogenic load onto ecosystems.
2 cl, 2 tbl, 2 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD TO EXTRACT GOLD FROM STALE TAILINGS OF UPSTREAM IMPOUNDMENTS | 2011 |
|
RU2468103C1 |
| METHOD OF DRESSING OF IRON ORE | 2010 |
|
RU2490068C2 |
| PROCEDURE FOR PRODUCTION OF COLLECTIVE CONCENTRATE OUT OF MIXED FINE INGRAINED IRON ORE | 2009 |
|
RU2388544C1 |
| METHOD OF DRESSING COMPOSITE IRON ORES | 2010 |
|
RU2432207C1 |
| METHOD FOR INTEGRATED TREATMENT OF RED MUD | 2013 |
|
RU2528918C1 |
| METHOD OF EXTRACTING HAEMATITE FROM COMPOSITE IRON ORE WET MAGNETIC SEPARATION TAILINGS | 2010 |
|
RU2427430C1 |
| METHOD OF OBTAINING OF BULK CONCENTRATE FROM FERRUGINOUS QUARTZITES | 2012 |
|
RU2533792C2 |
| METHOD OF FLOTATION OF HEMATITE-BEARING IRON ORES AND PRODUCTS | 2012 |
|
RU2494818C1 |
| METHOD OF IRON-BEARING ORES DRESSING | 2010 |
|
RU2436636C1 |
| THREE-STAGE GRINDING LINE OF MAGNETITE-HEMATITE ORES | 2017 |
|
RU2693203C1 |
