Mineral processing - WikipediaIn the field of extractive metallurgy, mineral processing, also known as ore dressing, is the process of separating commercially valuable minerals from their ores. Contents. [hide]. 1 History; 2 Unit operations. 2.1 Comminution; 2.2 Sizing; 2.3 Concentration; 2.4 Gravity concentration; 2.5 Froth Flotation; 2.6 Electrostatic.mining processing industry,Mineral Processing > Mining & Materials Handling Industry .Products and solutions for the mining industry – thyssenkrupp Industrial Solutions - Business Unit Resource Technologies – Mineral Processing.