The Diablillos silver-gold project, located in Salta and Catamarca Provinces, Argentina, is operated by AbraSilver Resource Corp. This high-grade deposit utilizes a conventional cyanidation process to recover gold and silver, with a designed throughput of 9,000 metric tons per day (3.15 million tons annually). The project leverages gravity concentration, intensive leaching, and Merrill-Crowe precipitation to maximize metal recovery.
- Location: Salta & Catamarca Provinces, Argentina
- Operator: AbraSilver Resource Corp.
- Production: Gold (avg. 0.88 ppm) and silver (avg. 74 ppm) from oxide ore
- Throughput: 9,000 mtpd (3.15 million mtpy)
- Process Flow: Crushing (150 mm P80) → SAG/Ball Mill Grinding (150 µm P80) → Gravity Concentration (Falcon SB5200) → Intensive Cyanidation (SLR6000) → Tank Leaching (36 hrs) → Merrill-Crowe Precipitation → Doré Production
- Recovery Rates: 83% Au, 80% Ag (Oculto ore); 84% Au, 85% Ag (JAC ore)
- Key Equipment: 7.92m SAG mill, 5.49m ball mill, 6-stage CCD circuit, INCO cyanide destruction
- Power: 20 MW hybrid system (solar + diesel/gas gensets)
- Water: 184 mtph from wells 13 km away
Source: AbraSilver Resource Corp.
