Schmelzinjekt2 – Recycling of zinc-containing filter dust

Initial situation:

  • Quantity of zinc-containing filter dust from melting processes increases (Zn as corrosion protection).
  • Up to now, recycling solution for filter dust with 2 to 20 mass% of zinc is missing.
  • So far, no internal processing solution has been realized, since long-term operational testing and determination of technical-economic characteristics are still pending.

Working topics:

  • Upgrade an existing test facility to a qualified demonstration system in the operational area.
  • Proof of technical and economic feasibility; Review of the market situation for the products produced.
  • Long-term demonstration experiments in the operational environment with the use of zinc-containing DK filter dust to determine robust technical-economic parameters.

Results:

  • Complete integration of the melt bath process into operational systems as well as proof of functional efficiency under real operating scenarios -> transition to TRL 8.
  • Detection of the residue-free recycling of zinc-containing dusts by recycling Zn, Fe and C.
  • Determination of robust technical-economic parameters for the future use of molten bath injection technology.
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