Behavior of platinum in the system of the matte-slag in the processing of copper-nickel materials

Copper-nickel sulfide ores are one of the main sources platinum. One ways to extract precious metals from such involves melting a concentrate in electric ore smelting furnaces, where melt is divided into matte and slag. Platinum generally concentrated matte; however, some it remains slag, thus leading metal losses. In order reduce platinum losses, forms these phases should be studied. It was found that during this ore, iron, nickel, copper reduced. The mineral composition present form intermetallics with Fe Ni. PtFe intermetallic dispersed needle formation length 20 500 ?m thickness up 10 ?m. size effect revealed: content decreases decreasing formations. formations can explained by an increase thermodynamic activity changing properties substance corresponding solubility. drops, together their associated platinumcontaining particles no more than 5-7 size, were carried slag gas bubbles using flotation. conditions for rise drop, bubble consist fact adhesive force drop buoyancy acting on must greater gravity drop.