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Research theme 02

Sustainable Mineral & Critical-Material Processing

This theme leads the applied-engineering side of the site: it connects Fabrice's current industry direction with earlier mineral-processing publications and Phoenix Tailings experience.

Research focus

Value does not have to stay in the tailings pile. The recurring question across this theme is how separation efficiency can be improved while reducing waste and environmental burden — and how safety, environmental performance, risk and operational reliability are integrated into process decisions.

Publicly documented work spans flotation, copper/cobalt leaching, tailings reprocessing, rare-earth recovery and process improvement, together with publicly described interests in critical minerals from unconventional sources.

Impact message Resource efficiency and responsible recovery — treating tailings and secondary streams as part of the materials solution, not only a legacy problem.

In the record

Contributions represented in the publication record.

2021

Copper from sulfide flotation tailings

A statistical investigation of flotation parameters for copper recovery from sulfide flotation tailings, published in Results in Engineering.

2021

Reverse cationic hematite flotation

Study of the effects of partially replacing amine collectors with a commercial frother, published in Heliyon.

2022

Simultaneous copper and cobalt leaching

Modeling, sensitivity analysis and optimization of simultaneous Cu/Co leaching in acid-reductive media, published in the Journal of Sustainable Metallurgy.

2025

Critical minerals from unconventional sources

A University of Miami feature describes Fabrice's current professional direction as cleaner, more efficient recovery of critical minerals — including earlier zero-waste rare-earth work with Phoenix Tailings.