At what temperatures does a reverberatory furnace smelt tin concentrate?

In a typical reverberatory furnace process used for tin smelting, the furnace is heated to temperatures between 1,300 and 1,400 °C (2,375 and 2,550 °F).1

This process, which generally lasts for about 15 hours, involves the chemical reduction of tin oxide using carbon (typically in the form of coke or anthracite coal) to produce molten tin metal. Before this smelting stage, low-grade concentrates may undergo a separate roasting process in a reverberatory furnace at lower temperatures, specifically between 550 and 650 °C (1,025 and 1,200 °F), to remove sulfur.1