Copper sulphide froth in a flotation tank

Copper sulphide froth in a flotation tank

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Caption: Copper production. View of a copper sulphide froth in a flotation tank at a copper smelting plant. Copper ore is crushed to a rough powder, wet to form a slurry then treated with a xanthate. This makes the particles of copper sulfide in the ore hydrophobic, unlike the rest of the rocky matrix. The slurry passes into a large tank containing a surfactant and air is pumped through. The copper sulfide particles stick to the bubbles that form and congregate in a surface foam that is easily skimmed off for further processing. Photographed at the Norilsk Nickel Combine in Krasnoyarsk Region, Russia.

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Keywords: bubble, bubbles, copper, extraction, floating, froth, heavy, hydrophobic, industrial, industry, isolating, metal, mineral, natural, norilsk, novosti, ore, process, processing, production, resources, russia, russian, separating, separation, slurry, smelting, sulfide, sulphide, surfactant, tank, treating

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