Costing about $225,000, the new plant is expected to be rapidly repaid and will also allow scalability for future expansions.
Symbol Mining Ltd has entered into a formal contract for the construction of a density separation processing plant at its high-grade zinc and lead Macy Project in Nigeria.
The contract includes procurement and commissioning and was concluded after encouraging metallurgical test work in the third quarter of this year.
Macy is part of the Imperial Project, a joint venture with Goidel Resources (40%), a group that has been operating in Nigeria for more than 20 years.
The majority of the plant has been constructed and mobilisation of key equipment will occur in December, with commissioning expected to be completed in the first quarter of 2019.
The 40-tonne-per-hour plant will complement Macy’s existing processing plant to capture additional tonnage from rejected lower-grade material (less than 10% zinc) and is expected to enhance the economics and flexibility of the project.
The favourable metallurgy leading to the decision comprised a low-grade zinc sample of 8.1% being tested and returning concentrate grades of 53.4% zinc and 3.5% lead, with 78% recovery of all contained metal.
The results indicated that Macy’s ore was highly amenable to gravity separation with high metal recovery, producing a high-grade zinc concentrate from coarse feed size.
This eliminates the requirement for a capital-intensive grinding and flotation circuit.
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