Metal Ore Concentration (Leaving Cert Engineering): Flashcards

Extractive metallurgy using high-temp processes to extract valuable metals from ores

Unwanted materials separated from metals during extraction

$500-2000°C$

Process where exothermic reactions sustain the temperature

Thermal decomposition of material by heating, driving off volatiles

Thermal gas-solid reactions; commonly oxidation of metal sulfide ores

Complete oxidation of sulfide with excess oxygen

Thermal reactions where at least one product becomes molten

Coke or charcoal (carbon sources)

Removes impurities from materials through thermal processes

Calcining, Roasting, Smelting, Refining

Iron, copper, zinc, chromium, tin, manganese

High temperatures dramatically accelerate chemical reactions

Metal oxide and $SO_2$ gas

Help separate impurities into slag