| Company | Austral Gold Limited |
| Date | 2016-09-07 |
| Region | Unknown |
| Commodities | Gold, Silver |
Executive Summary
The Casposo Mine Technical Report outlines the recovery methods for gold and silver doré, which is transported to a refining facility in Brampton, Ontario, Canada. The processing and recovery method involves whole ore cyanide leaching for extraction, counter-current decantation (CCD) and filtration for liquid-solid separation, and Merrill-Crowe for recovery of the metal from the leach solution. The processing plant was designed by Mineral Engineering Technical Services Pty Ltd (METS) and utilizes second-hand equipment from the former McKinnons Gold Project in New South Wales, Australia.
The plant has a nameplate throughput of 400,000 tpa (50 tph), though current underground mine plans deliver approximately 300,000 tpa. The crushing circuit uses a single toggle jaw crusher fed by an apron feeder, with crushed ore stored in an open stockpile before being fed to the semi-autogenous grinding (SAG) mill. The SAG mill operates with a ball charge and discharges pebbles to a pebble crusher or bypass chute.
The grinding circuit includes a SAG mill and a decommissioned ball mill, with a gravity circuit using a Falcon centrifugal gravity concentrator to treat undersize material. Leaching is conducted in nine agitated tanks with an Intensive Leach Reactor (ILR) for high-grade gravity concentrates. Recovery is achieved via Merrill-Crowe zinc cementation after clarification and de-aeration, followed by refining in a mercury retort and smelting furnace to produce silver-gold doré.
Website: https://australgold.com/projects/operations/argentina-casposo-manantiales-mine-complex/
Report Date: 2016-09-07
Region: Unknown
Project Status:
Commodity: Gold, Silver
Throughput:
Mine Life:
Mine Type:
Ore type:
Technical report and processing history
The following archived source profiles have been consolidated here to preserve the project’s processing history and study context.
Casposo Project — Technical Report
Casposo Project — Technical Report
| Company | Troy |
| Date | Not Specified |
| Region | Not Specified |
| Commodities | Gold, Silver |
Executive Summary
The Casposo Project is designed to recover gold and silver dore bullion using the well-established Merrill Crowe process, a method widely used throughout the gold and silver mining industry. The recovered dore is subsequently transported to a refining facility in Brampton, Ontario, Canada, for further processing into high-purity gold and silver.
The processing plant configuration was strategically designed to utilize second-hand equipment from the former McKinnons Gold Project in New South Wales, Australia. This approach was adopted to ensure financial viability and immediate availability of plant components. Mineral Engineering Technical Services Pty Ltd (METS) of Perth, Western Australia, developed the process description for the project.
Detailed information regarding the processing plant configuration and operation is documented in Sections 13.1 through 13.13 of the full report, with the flowsheet included as Figure 13.1. This section focuses on the recovery methods and the strategic equipment sourcing that underpins the project’s economic model.
Website: https://www.mining.com/troy%E2%80%99s-casposo-gold-silver-project-goes-into-production/
Report Date: Not Specified
Region: Not Specified
Project Status:
Commodity: Gold, Silver
Throughput:
Mine Life:
Mine Type:
Ore type:
