| Company | Sabina Gold & Silver Corp. |
| Date | 2013 |
| Commodities | Zinc, Lead, Copper, Silver |
Executive Summary
The 2013 Sabina Gold & Silver Corp. Hackett River NI 43-101 Technical Report outlines the recovery methods for the project. Based on the 2009 PEA, the report proposes a conventional crushing, grinding, and flotation flow sheet designed to produce saleable concentrates for zinc, lead, and copper with a focus on silver recovery. The process plant is described as having minimal technological risk, although the SAG mill circuit requires further testwork.
The proposed plant operates at a treatment rate of 12,000 tonnes per day, an increase from the base case 10,000 tpd. The circuit includes primary gyratory crushing followed by a SAG-ball mill grinding circuit closed with cyclones to a P80 of 65 µm. Reagents such as soda ash, NaCN, and lime are utilized to control pH and collector performance during the grinding and flotation stages.
Flotation involves bulk rougher flotation followed by specific stages for lead and zinc separation using reagents such as NaCN, lime, and collectors like Aero 5100 and SIPX. Concentrates undergo thickening and pressure filtration before disposal of tailings. The process emphasizes optimizing silver recovery alongside the base metal concentrates.
Website: http://versamet.com/royalties/hackett-river/
Report Date: 2013
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Commodity: Zinc, Lead, Copper, Silver
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