Pyro / Hydro Processing

Pyrometallurgy and hydrometallury are two branches of extractive metallurgy. Using different techniques the physical and chemical properties of ores, minerals and concentrates are changed to enable the recovery of valuable metals.

Pyrometallurgy consists of the thermal treatment of minerals, ores and concentrates. This treatment may produce saleable products such as pure metals, intermediate compounds or alloys. Pyrometallurgical processes can be grouped the categories of drying, calcining, roasting, smelting and refining.

Hydrometallurgy using aqueous chemistry to recover metals from ores and concentrates. Hyrometallurgical processes can be grouped into the categories of leaching, solution concentration/purification and metal recovery.

- Outotec Oyj, Metso Minerals, FLSmidth Minerals, Ore-Max, Outotec Oyj images.