Mineral Processing

African Minerals and Geosciences Centre
Minerals For Development

  • fr-FR
  • English (UK)
The Mineral Processing Laboratory provides a wide range of ore beneficiation and metal extraction research services for the mining industry. It is equipped with a unique platform of laboratory bench scale facilities for the development and testing of energy-saving, low-cost crushing, grinding and concentration processes in environmental friendly ways. Testing of appropriate methods can be conducted from bench-scale to pilot-scale with effectively desired output through considering different ore properties such as; physico-chemical, magnetic susceptibility, grindability, floatability, specific gravity etc. The equipment available allow the laboratory to perform conventional bench scale operations such as;
  • Sample Preparation
  • Ore crushing and grinding
  • Bench scale gravity concentration
  • Dense/ heavy media separation
  • Magnetic separation
  • Froth flotation
  • Solid-liquid separation.
  • Ore screening and classification using hydro-cyclones
  • Leaching (hydrometallurgy)

Shaking table for gravity concentration investigations Pilot Leaching

The laboratory provides consultancy services to interested institutions and individuals wishing to develop mineral recovery systems. Special emphasis is offered to the improvement of mineral recoveries in small to medium scale operators.

Research and Development:
The laboratory conducts research and development studies on specific problems facing mineral recovery operations, beneficiation and value addition to industrial minerals and low value minerals/materials and other issues related to the mining industry especially environmental and social issues.

Training courses on different subjects related to mineral recovery techniques are provided to all stakeholders who desire to acquire more knowledge on the subject matter. Laboratory equipment and facilities are used for demonstration of the different methods for the recovery and beneficiation of minerals.Course participants are allowed to come with their own samples for use during the training courses.
The section collaborates with the different universities in Tanzania by training their students during their field attachment and final year projects.
Currently the following courses offered:
  • Practical Mineral Processing and The Basic Mineral Processing Flowsheet
  • Crushing and Grinding – Fundamentals, Unit Operations and Circuit Optimization
  • Flotation - Fundamentals , Unit Operations and Circuits
  • Hydrometallurgy – The Leaching Process, Purification of Leach Solutions and Precipitation from Leach Solutions
  • Cyanide in Mining - Techniques of Gold Cyanidation
  • Extractive Metallurgy - Metals, Ore Deposits and Minerals, Beneficiation, Extraction and Metallurgical Processes
  • Metallurgical Balance And Process Control
  • Mineral Economics and Evaluation
  • Overview and Advancements in Mineral Processing and Characterization
  • Sampling and Preparation Of Geological Materials for Laboratory Tests
  • Industrial Minerals – Properties, Beneficiation and Value Addition
  • Health, Safety and Environmental Management for the Extractive and Minerals Processing Industries

The courses are delivered for five days of both classroom learning and laboratory practicals. Participants who attend the entire short course and complete an evaluation at the end of the course will receive a Certificate of Attendance, confirming their participation and knowledge gained.

These courses are beneficial to and target, plant managers, operation managers, technical managers, metallurgists, engineers and researchers, engineering geologists, processing managers, suppliers, metallurgists, small scale mining entrepreneurs, materials managers. But all stakeholders in the mining and minerals business such as policy makers, regulators, and etc. are set to benefit from the courses above. It is also of value to students as well as research and academic personnel of universities. The course can also benefit service providers and suppliers to the mining industry.

Alex Mkama - Mineral Processing Engineer
Dachi Mahmoud - Mineral processing Technician .

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