How does a mine turn a pile of rock into cash? Froth flotation’s the answer. A process that transforms low-grade ore (like 1% copper) into high value concentrate ready for smelting. Here is how it works.
Inside a flotation cell, finely crushed ore (<0.1 mm) is mixed with water, chemicals (collectors like xanthate, frothers like pine oil), and air bubbles. As the air rises, valuable minerals cling to the bubbles, floating to the surface as froth. The result? A concentrate enriched to around 25% copper (from 1% ore) while the junk-silicates, quartz sinks as tailings.
Why this matters today? With electric vehicles (EVs) fueling copper demand and ore grades declining, froth flotation is a game changer, boosting recovery to almost 90% of valuable metals while minimising waste. Even tailings hold value. Many mines reprocess them to extract metals like cobalt and other metals.
Today, froth flotation isn’t just useful, It is essential.
How’s flotation working at your site? Comment below!
