Metal smelting aims to isolate the metal from its ore by subjecting it to high temperatures and chemical reactions.

Limestone is primarily composed of calcium carbonate and is not considered a metal ore.

Slag is composed primarily of gangue minerals, which are impurities present in the ore.

Iron is one of the most commonly smelted metals, with iron ore being converted into pig iron through the smelting process.

Flux is added to the smelting process to reduce the melting point of the ore, making it easier to separate the metal.

Electricity is not typically used as a fuel in metal smelting, as it is not as efficient as traditional fuels like coal or natural gas.

Matte refers to the molten mixture of metal sulfides and slag that forms during the smelting process.

Platinum is typically extracted through a process called refining, rather than smelting.

Metal smelting can release harmful pollutants into the air, including sulfur dioxide, nitrogen oxides, and particulate matter.

Hydrometallurgy involves extracting metals from their ores using aqueous solutions, rather than through smelting.

Refining is the process of purifying molten metal by removing impurities.

Crucible furnaces are not typically used in industrial metal smelting operations.

Roasting involves heating the ore in the presence of air to convert it into a form that is more suitable for smelting.

Electrowinning is commonly used to extract nickel from its ores.

Tapping involves draining the molten metal from the furnace, leaving behind the slag.