Reduced grinding requirements for mineral beneficiation using modified materials for mineral separation and coarse particle recovery

Abstract

A mineral processing system for mineral separation and coarse particle recovery using modified media features a first ore size reduction circuit and a second ore size reduction circuit. The first ore size reduction circuit includes a secondary crusher with a combination of a high-pressure grinding roll crusher and a screen, and is configured to receive a primary crusher feed from a primary crusher, providing a first ore size reduction circuit feed that has first crushed ore with a first mineralized body feed size smaller than the primary mineralized body feed size of the primary crusher feed, by approximately 6–8 mm.The second ore size reduction circuit is configured to receive the first ore size reduction circuit feed and provide a second ore size reduction circuit feed that has the second crushed ore with a second mineralized body feed size of less than 1 mm.