ALS employs different separation techniques to separate and concentrate the target valuable metals and minerals.
These techniques utilise differences in physical or chemical properties of the valuable and gangue minerals. One of the techniques used is gravity separation, where separation can be achieved based on the difference in specific gravity (SG), shape and particle size of the valuable minerals or metals, as compared with the gangue or host rock and the carrying medium.
A combination of gravity separation and other techniques often produces the desired result.
Commonly performed gravity separation techniques include:
- Cyclone Separation
- Dense Media Separation (DMS)
- Ericson Cone Heavy Media Separation
- Falcon Concentrator
- Heavy Liquid Separation (HLS)
- Jigging – Allmineral Alljig®
- Kelsey Jig
- Knelson Concentrator
- Manual Panning
- Spiral Rig
- Teeter Column
- Up-Current Classifier – Allmineral Miniflux®
- Wilfley Table
ALS facilities employ all of these techniques for specific mineral separation testwork programs. This allows ALS to identify and optimise the most efficient and economic process flowsheet for a target mineral or metal.
With several decades of combined industry and project development testwork experience, the ALS team of professionals, supported by a cadre of highly skilled technical staff, ensures optimum process flowsheet separation techniques are employed based on specifically tailored metallurgical test programs for each unique mining project.