Cangrejos Gold-Copper Project — 2018 Technical Report
| Company | Not Specified |
| Date | 2018 |
| Region | Ecuador |
| Commodities | Gold, Copper, Silver, Molybdenum |
Executive Summary
The Cangrejos Gold-Copper Project Technical Report outlines the design of a conventional copper-gold flotation concentrator located in Ecuador. The plant is designed to process 40,000 tpd initially, expanding to 80,000 tpd, treating fresh and partially oxidized material containing gold, copper, silver, and molybdenum. The processing strategy excludes near-surface saprolite due to poor response to concentration processes.
The flowsheet includes primary crushing via a gyratory crusher, followed by SAG and ball mill grinding circuits. Gravity gold concentrators are integrated to recover gravity gold, while bulk copper-molybdenum flotation and subsequent separation flotation produce distinct concentrates. The design emphasizes cost efficiency, selecting SAG/Ball mill grinding over HPGR/Ball mill grinding for lower capital costs.
Operational details include the use of pressure filters for concentrate and tailings dewatering, with water recycling systems in place. The plant organization supports 157 personnel initially, ramping to 233 during expansion. Reagent systems utilize collectors like PAX and MIBC, along with depressants such as NaHS and Lime, to optimize mineral recovery.
Website: https://www.wheatonpm.com/portfolio/development-projects/cangrejos/default.aspx
Report Date: 2018
Region: Ecuador
Project Status:
Commodity: Gold, Copper, Silver, Molybdenum
Throughput:
Mine Life:
Mine Type:
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