Clean Gold Ore Mineral Processing
Published on Nov 20, 2015
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PRESENTATION OUTLINE
GOLD IN HISTORY
PRICE OF GOLD
MINING METHODS FOR CLEAN GOLD EXTRACTION
GOLD PANNING
- taking advantage of the density difference in the wanted material and gangue
- panned material-ore and water
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HYDRAULIC MINING
- using high pressure streams of water directed to working face to cave gold ore
- sluicing - process of moving slurry (water and ore)
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LEACHING METHODS
- Dump leaching - stripped marginal materials adjacent to ore body
- Heap leaching - carried out on previously milled material in dump, tailings, or slag piles
LEPANTO CONSOLIDATED MINING COMPANY
VICTORIA ORE BODY
SPECIAL TOPIC: LCMC VICTORIA ORE BODY
- Disseminated gold nuggets in quartz veins
- Mining method used: varieties of cut-and-fill stoping
- Advantages include dilution minimization and high selectivity
- Also surface waste can be used as fill material
Untitled Slide
CLEAN GOLD MINERAL PROCESSING FLOWSHEET
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ASSUMPTIONS FOR ORE MATERIAL
- ore is moderately strong
- blasting provided enough crushing of the material
- gold particles in the quartz are on vein-type configuration
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RECOMMENDATIONS
- Flowsheet is limited only on the assumptions made
- Feed involving high tonnage quartz-gold matrix is partly not applicable
- Assaying is not part of the mineral processing but is discussed
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CONCLUSION
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