Recovery of Valuable Metals from Flue Dust and Other Fines from Mechanical Treatment of e-Scrap

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This project will evaluate the potential for cost-effective and technologically viable methods for recovering metals and other valuable materials from the fines generated in mechanically processing e-scrap waste. The initial tasks include procurement of fines from Aurubis & ERI, Inc. and determination of fines content per ton of e-scrap with analysis from sources.

This project will deliver:

  • Literature review on current practices – collection, treatment & disposal
  • Report on contained metals & materials value
  • Economic viability analysis
  • Process flow sheet for metals recovery
  • Design of equipment and experiments for pilot scale testing

Initial experimental steps involved include:

  • Physical characterization: size distribution, composition and phase identification
  • Physical separation: density, magnetic (?), eddy-current, electrostatic
  • Physico-chemical separation: Flotation
  • Chemical recovery: Leaching followed by precipitation, SX, IX, electrolysis, etc.
  • Evaluate pyrometallurgical recovery options.