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ExtrEL's Economic Benefits
The target feedstock for the ExtrEL process is not an expensive new ore body to be developed, but the sulphur-rich tailings waste streams from the concentrate mills of the modern and closed sulphidic-feed smelter operations at any location around the globe.
The ExtrEL technology has the potential to revolutionize the modern mining industry by:
- Recovering economically significant tonnages of base metals such as nickel from surface mining industry waste dumps at relatively low costs
- Producing economically significant tonnages of elemental sulphur or sulphuric acid from surface waste dumps as a by-product of the base metal extraction process
- Recovering precious metals such as rhodium from pyrrhotite-rich surface waste dumps at relatively low costs
- Converting environmental liabilities into more benign neutral drainage generation surface materials such as a building aggregate (fine sand for concrete and road construction usage) of minimal sulphur and metal content
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