The project required the construction of seven carbon‐in‐leach tanks. The challenge for Pacific Urethanes was to deliver the following polyurethane system which would
- Utilise a lining system that resists a highly abrasive and corrosive chemical environment
- Allow for a quick turn around and start-up of the plant. The lining of the tanks was one of the last contracts of the project in the construction phase
- Provide long term protection of the structure
Pacific Urethanes – Advanced Technology
Carbon-in-leach (CIL) is a continuous processes that use activated carbon, sodium cyanide and other highly corrosive liquids in a cascade of large agitated tanks. The CIL process is widely used to recover or concentrate precious metals in gold extraction plants throughout Australia.
This process involves tank linings being subjected to highly corrosive and abrasive slurry mixtures. This is an environment which standard protective coatings would not withstand.
Pacific Urethanes Polyeuro 1050H high performance elastomeric polyurethane is the preferred coating option for CIL tanks based on its reduced application time, overall cost and life expectancy of the coating.