Mineral Sand Separations

摘要

The separation and upgrading of heavy mineral sands is accomplished by a combination of wet and dry processing. The wet side comprises liberation by scrubbing, size classification, and various techniques of gravity separation to produce a bulk (total) heavy mineral concentrate. The dry side, treating size classified total heavy mineral concentrate, principally involves the use of magnetic and electrostatic separation to produce marketable concentrates of rutile, ilmenite, zircon, monazite, and other heavy minerals. These various separating unit operations were invented, developed and/or adopted as the result of issues experienced at the operational level but ultimately driven by market forces.