Technical Expertise
Roasting
Converting sulphide to oxide and generating a strong, steady sulphur dioxide stream for the acid plant.
Scope
- Fluidised-bed roasting of zinc and other sulphide concentrates
- Dead roasting and sulphating roasting regimes
- Feed preparation, moisture control and bed stability
- Waste-heat boilers and steam generation
- Calcine handling, cooling and transport
- Off-gas conditioning for downstream gas cleaning