Mineral Processing Circuit

Moa Project — 2023 Technical Report

The Moa Project, operated by Sherritt International, is a nickel and cobalt mining and processing operation located in Moa, Cuba. The project utilizes a hydrometallurgical processing route, specifically High Pressure Acid Leaching (HPAL), to treat limonitic laterite ore. The process involves slurry preparation, pressure acid leaching, counter-current decantation, and sulphide precipitation to produce a mixed sulphide intermediate product. This intermediate is then transported to the Cobalt Refinery Company (CRC) in Fort Saskatchewan, Canada, for further refining into commercial pure nickel and cobalt metal products.

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Catanava Gold Property process flowsheet: Catanava Gold Project Mill Flowsheet

Catanava Gold Property — 2011 Technical Report

This section of the NI 43-101 Technical Report details the recovery methods for the Catanava Gold Property. The process begins with gravimetric concentration, where ore is transported by truck to a discharge area and deposited into a coarse ore bin with a capacity of approximately 100 tonnes. The ore undergoes primary crushing via a jaw crusher, reducing the size to one inch, followed by secondary crushing in a cone crusher to achieve a size of 1/8 inch.

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