Beneficiation

Name:
Beneficiation
Detailed information:
A process used in extractive metallurgy whereby an ore, either metallic or nonmetallic, is concentrated in preparation for further processing (smelting). Calcination is often an important step in beneficiation; others steps include physical separation of high-grade ore from impurities (gangue) by screening, washing, milling, or magnetic means. A process for removing sulfur from coal by chemical comminution has been developed.