See Also

CESL Testwork Brochure
(1.8MB PDF)


Pilot scale autoclave

Pilot Scale

Continuous pilot plant campaigns, from concentrate re-grind through to production of LME grade-A copper cathode (35 kg/day), are conducted at CESL. The pilot plant facilities are also capable of recovering nickel, cobalt and zinc from sulphide concentrates. A fully integrated precious metal recovery circuit is on site to recover gold and silver from the leach residue. Various flowsheet configurations are possible within the pilot plant facilities using standard unit operations. Key equipment and installed unit operations include:

  • 30 litre titanium and stainless autoclaves
  • Thickening and filtration equipment
  • Atmospheric leach vessels
  • Solvent extraction and electrowinning
  • Neutralization and purification circuits
  • Cyanide regeneration and destruction
  • Gold and silver recovery (carbon)

The fully integrated pilot plant is used to prove the process flowsheet. Since 1992, 15 Pilot Plant campaigns for copper, copper/gold, zinc and nickel-cobalt projects have been undertaken at the CESL facility with over 20,000 hours of continuous Pilot Plant operation. Typically, a concentrate sample of 6 to 8 tonnes is sufficient to complete an integrated 60-day Pilot Plant campaign.