Abstract:

Conventional metal extraction technologies viz. hydrometallurgy and pyrometallurgy use large quantities of acids and toxic chemicals during processing which culminate in generation of hazardous effluents, gases, and residues. Many of these processing methods are carried out on average to high grade ores as concentration is often challenging for low-grade deposits, making the low-grade ore or recovery from mine tailings capital intensive with high operating costs along with the need to neutralize the toxic wastes generated from these conventional technologies.

Ore2Metal specialize in concentration of critical minerals from low grade marginal resources as well as from mine tailings & smelter residues. Concentration is the key for any economic recovery of metals from a marginal ore or mine tailings. Concentration enables enrichment of metal values from a deposit into a higher-grade concentrate requiring a smaller footprint of processing plant for metal refining. This allows a lower operating and capital cost along with minimal waste production.

Our advanced concentration technology allows a cost-effective solution to enrich the low-grade resources (both sulfides and oxides) into a higher grade concentrate making it possible to recover various metals economically. The concentrate generated can then be processed using specialized metallurgical processes for production of high purity metals. Case studies to demonstrate the value of our process for critical metals will be presented in this paper.

Keywords: Recovery of Critical Minerals from Marginal Resources, Advanced Concentration, Re-Processing of Mine Tailings, Treatment of Smelter Residues

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Dr. Barun Gorain

Biography