In an constrained economic and environmental context, the recovery and recycling of metals are now at the heart of industrial concerns and are of strategic interest. The waste considered in this case is post-consumer waste, which is a major source of secondary raw materials, but is more difficult to capture than industrial waste.
OUTLINE
I - General: Why, how, who ?
- Strategic issues, primary / secondary raw materials, critical metals
- Circular economy, life cycle analysis
- European legislation
II - The stages of recycling:
- communition (waste preparation, dismantling, shredding)
- concentration (characterisation of the deposit, separation of materials)
- extraction: hydrometallurgy (leaching, liquid-liquid extraction), pyrometallurgy (reactive fusion, distillation)
- purification (precipitation, phytoextraction, refining...)
III - The main recycling schemes:
- DEEE
- Batteries and accumulators
- End of life vehicles
- Other
