Aluminum smelting is a highly energy consuming industrial process. The process generates a large amount of the heat that leaves through the exhaust gas. The exhaust gas must be scrubbed of its contaminants before release to the atmosphere at the gas treatment unit exit. The scrubbing process is more effective if this gas is cooled […]

AA6111 aluminum alloys possess a combination of excellent strength, good formability and good corrosion resistance that are widely use in the car panel manufacture. Direct chill (DC) casting process is typically employed for producing such alloy ingots. Despite its advantages, AA6111 alloys are considered as “hard-to-cast” alloy among 6xxx alloys because of high susceptibility to […]

Atmospheric acid emissions are increasing in north coastal British Columbia from increased metallurgical smelting, marine fossil fuel transport, and development of liquefied natural gas. Acid deposition can cause episodic acidification of streams when acidic compounds are flushed into streams after snowmelt and precipitation events over hours to weeks. Many salmon-bearing coastal streams are likely sensitive […]

Rio Tinto operates aluminium plants in Saguenay that are powered by their hydroelectric system. An efficient management of water available in the system is primordial to ensure energy supply to the aluminium smelters. This quantity is uncertain since the exact inflows in the reservoirs are unknown when decisions are taken. Stochastic optimization is used to […]