CONTACT US

PRA Metallurgical Division
11620 Horseshoe Way
Richmond, B.C. V7A 4V5
CANADA

Tel: 604.272.8110
Fax: 604.272.0851
Email: pra@inspectorate.com

NEWS+EVENTS

PRA was acquired by Inspectorate in September 2008 as part of a worldwide metallurgical testing division.

Mineral Trade Show Events
Arequipa, Peru – Sept 15/09
Vera Cruz, Mexico – Oct 28/09
Yellowknife, NWT – Nov 17/09
Whitehorse, YT – Nov 23/09

MINERAL PROCESSING

Particles of different minerals in a rock mass can often be separated from each other by taking advantage of the differences in the physical characteristics (hardness, shape, density, magnetic, electrostatic) or surface chemistry (flotation, settling) of the various constituents. This is usually the first step in the recovery of most valuable minerals into a commercial product. Our laboratories are fully equipped to test your samples from bench scale to demonstration tests with the focus on developing with you a practical and economical flow sheet for your operation whether it is by adapting known technologies to new situations or by developing a new process.

Comminution

• Crushing
• Grinding
• Bond Work Index
• Size classification
• Screening

Flotation

We have worked on the flotation of sulphides, gold and gold bearing minerals, PGM's, oxides, industrial minerals, carbonaceous compounds, soluble salts, synthetic materials, waste and soil reclamation.

• Standard batch
• Closed-Circuit
• Flash flotation
• Reverse flotation
• Special gas media
• Agglomeration flotation
• Soil cleaning flotation

Gravity Concentration

• Jigs
• Shaking tables
• Sluices
• Spirals
• Cone
• Heavy media cones
• Centrifugal Heavy Media separator
• Centrifugal concentrators (Falcon and Knelson)

Magnetic Separation

• Drum separator
• Belt separator
• High Gradient separator

Solid Liquid Separation

• Standard thickening
• Differential settling
• Vacuum & pressure Filtration