Anaconda Smelter Copper Converter Process September 1942

The Anaconda smelter in Anaconda, Montana, operates as a key facility for copper production in September 1942. The Anaconda Copper Mining Company utilizes a copper converter process where compressed air is applied to molten charge to remove sulfur and iron. Silica is added to create slag, which is then skimmed off. This smelter was vital to the U.S. copper supply during World War II.

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