what's happening in copper hydromet - ALTA Metallurgical Services

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$developments in the processing of refractory & complex gold ores$

FREEPORT MCMORAN PLANT, BAGDAD, ARIZONA 20
MEDIUM TEMPERATURE PRESSURE OXIDATION • Uses pressure oxidation with oxygen in an autoclave at around 150°C with a leach time of 1-3 hours. • Forms elemental sulphur instead of acid which reduces oxygen consumption and limestone needed for neutralization. • A surfactant is typically used to disperse the sulphur which is in the liquid state • Being developed by a number of organizations including FCX, USA; Teck/CESL, Canada, Dynatec, Canada; Anglo American, South Africa. • Variations include ultrafine grinding (FCX, Anglo), chloride addition as a catalyst (Teck/CESL) and residue flotation to maximize recovery (Dynatec). 21
Page 1 and 2: WHAT’S HAPPENING IN COPPER HYDROM
Page 3 and 4: KEY DRIVERS • The emergence of SX
Page 5 and 6: CHALLENGES • High energy consumpt
Page 7 and 8: AREAS OF DEVELOPMENTS • A resurge
Page 9 and 10: TENKE FUNGURUME FLOWSHEET, FCX, DRC
Page 11 and 12: AGITATED TANK ACIDIC FERRIC SULPHAT
Page 13 and 14: SEPON OPERATION, MMG, LAOS 13
Page 15 and 16: MINTEK TEST HEAP AT DAREHZARE MINE,
Page 17 and 18: HIGH TEMPERATURE PRESSURE OXIDATION
Page 19: HIGH TEMPERATURE PRESSURE OXIDATION
Page 23 and 24: FCX MORENCI PROCESS FLOWSHEET 23
Page 25 and 26: TANK BIO-OXIDATION • Uses extreme
Page 27 and 28: SEMI-COMMERCIAL BIOCOP PLANT, CHILE
Page 29 and 30: GALVINOX PROCESS FLOWSHEET 29
Page 31 and 32: ALBION PROCESS • Involves atmosph
Page 33 and 34: CHLORIDE PROCESSES • Chloride lea
Page 35 and 36: SOLVENT EXTRACTION & ELECTROWINNING
Page 37 and 38: OUTOTEC EW CELL COVERS 37
Page 39: Upcoming Short Courses Copper Hydro

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