Slag is a by-product or co-product of smelting ores and recycled metals depending on the type of material being produced. Slag is mainly a mixture of metal oxides and silicon dioxide. Broadly, it can
Molten slag is carried outside and poured into a dump. Caletones copper smelter in El Teniente mine, Chile.
Molten slag flowing into a pelletizing plant [fr]
Granulated (or vitrified) blast furnace slag
Sample of granulated slag
Smelting is a process of applying heat and a chemical reducing agent to an ore to extract a desired base metal product. It is a form of extractive metallurgy that is used to obtain many metals such as
Slag
…Slag is a by-product or co-product of smelting (pyrometallurgical) ores and recycled metals depending on the type of material being produced. Slag is mainly a mixture of metal oxides and silicon…
Electric phosphate smelting furnace in a TVA chemical plant (1942)
Copper smelter, Chelyabinsk Oblast, Russia
Electrolytic cells at an aluminum smelter in Saint-Jean-de-Maurienne, France
Cowles Syndicate of Ohio in Stoke-upon-Trent England, late 1880s. British Aluminium used the process of Paul Héroult about this time.