The Gruyere Gold Mine Project
Supporting Australian Miners – The Gruyere Gold Mine Project.
The Gruyere Gold Project is located in the Yamarna Greenstone Belt and is situated on mining lease M38/1267, approximately 200km east of Laverton in Western Australia.
With estimated ore reserves of more than 3.5 million ounces (Moz) of gold to be produced over an initial 13-year mine life, the project is claimed as one of the most significant undeveloped gold deposits in Australia.
The project required the construction of seven carbon-inleach 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
Kaefer Novacoat have used the Pacific Urethanes Polyeuro 1050H product on a recent project in the Eastern Goldfields Western Australia. The project involved internal coating of 1 x Leach Tank 18.4m diameter x 20m high and 6 CIL tanks 17m diameter x 20m high. The process works also included coating of the launders, baffles and inlet pipework to a DFT of up to 3mm.
The product performed well for us during the application with full WFT/DFT achieved in one application with minimal rework required which assisted us to accelerate our component of the project for the client.
Matthew Slatyer and his team at Pacific Urethanes provided excellent support to us before and during the project.
KAEFER Novacoat Pty Ltd
Pacific Urethanes was able to provide
- Demonstrated past histories of success in this environment over a 12 year period
- Guidance on project specification and application requirements
- Technical backup throughout the project on ways to fast track completion of the project
Pacific Urethanes ‘elastomeric urethane’ was specified for the process plant, carbon in leach tanks, due to the ‘elastomerics ability to provide’;
- Long term protection against wear
- Resistance to chemical induced corrosion caused by the slurry liquor
- Speed of application and cure to ensure the tight construction schedule would be met.
- Polyeuro 1050H a high performance elastomeric coating with superior chemical and abrasion resistance
- Fast cure time allows for return to service within 24 hours
- Resistant to the chemicals used in the carbon in leach process with a proven track record
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.