Porgera JV — 2012 Technical Report
| Company | Barrick Gold Corporation |
| Date | 2012-03-16 |
| Region | Papua New Guinea |
| Commodities | Gold, Silver |
| Mine Type | Open Pit |
| Status | Operating |
Executive Summary
The Porgera JV ore processing plant utilizes a complex recovery circuit located across two sites, Tawisakale and Anawe. Run-of-mine ore is crushed via a gyratory crusher and secondary Omnicone crushers before being conveyed to a coarse ore stockpile. The grinding circuit employs two SAG mills in parallel, followed by a ball milling circuit closed with cyclones. Gravity recovery is integrated using Knelson concentrators for free gold prior to flotation.
Flotation produces a sulphide concentrate which is thickened and subjected to pressure oxidation in four autoclaves to oxidize sulphides. The resulting slurry undergoes washing and enters a leach circuit comprising seven CIL tanks followed by nine CIP tanks for gold recovery. Final gold and silver are recovered via electro-winning and smelted into doré bullion. Cyanide destruction and lime production are also integral parts of the plant operations.
Reports
Website: https://www.barrick.com/English/operations/porgera/default.aspx
Report Date: 2012-03-16
Region: Papua New Guinea
Project Status: Operating
Commodity: Gold, Silver
Throughput:
Mine Life:
Mine Type: Open Pit
Ore type:
