Zinc

Electrolytic Zinc Production, consisting of:

  • Fluid bed roasting
  • Application of O2-injection technology in the roasting process
  • Waste heat recovery from SO2-off-gas
  • Dry and wet gas cleaning of SO2-off-gas
  • Removal and recovery of Hg from SO2-off-gas
  • Removal of fluorine from SO2-off-gas
  • Sulphuric acid production
  • Liquid SO2-production
  • SO3-production
  • Oleum production
  • Direct leaching of concentrates
  • Leaching of zinc calcine and zinc oxides
  • Treatment of leaching residues
  • Iron precipitation as Jarosite, Goethite or Hematite
  • Purification zinc sulphate solution
  • Conventional and full mechanized zinc cellhouses with cathode surface up to 3.5 m2
  • Smelting of zinc cathodes and casting of zinc slabs
  • Preparation and casting of zinc alloys
  • Production of zinc dust
  • Production of cathodic cadmium from metallic zinc – copper – cadmium bearing residues
  • Treatment of metallic zinc drosses
  • Offsites facilities for the supply of all required process utilities such as process water, compressed air, fuel, ammonia, liquid gas etc.
  • Treatment of contaminated liquid and waste effluents