GMSI - Postdoctoral Researcher – Autogenous Grinding and Phosphate Ore Valorization

Position Summary

Postdoctoral Researcher – Autogenous Grinding and Phosphate Ore Valorization.

12 months.

We are seeking a highly motivated and technically skilled Postdoctoral Researcher to join a multidisciplinary research project focused on the sustainable valorization of phosphate-rich mining waste through innovative comminution strategies. The successful candidate will play a leading role in advancing research on autogenous grinding as a low-energy alternative for liberating indurated phosphates stored in mining waste deposits (MATs). This project integrates mineralogical and mechanical characterization, pilot-scale testing, and advanced process simulation, with the objective of optimizing grinding performance and enhancing resource recovery.

The ideal candidate will have a strong background in mineral processing, comminution modeling, and ore characterization, and will contribute to developing an integrated beneficiation strategy that reduces operational costs and energy consumption. This research aligns with broader goals of promoting circular economy practices and technological innovation in the Moroccan phosphate mining sector.

Sustainable mineral processing, with a focus on autogenous grinding and the valorization of indurated phosphate-rich waste rocks.

• Conduct a detailed literature review on autogenous grinding and phosphate-rich mining waste.
• Design and implement mechanical, mineralogical, and rheological characterizations of MATs.
• Select and dimension an appropriate autogenous mill for pilot testing.
• Lead the design and execution of lab-scale autogenous grinding trials based on experimental design.
• Contribute to the numerical modeling of beneficiation circuits (e.g., using USIMPAC or similar software).
• Analyze, interpret, and report the outcomes of simulations and pilot tests.
• Draft technical reports and scientific publications.
• Coordinate with internal researchers, external labs, and industrial partners.

Required qualifications :

• PhD in Mineral Processing, Mining Engineering, Georesources Engineering, or related field.
• Proven experience in ore characterization techniques (mechanical, mineralogical, physical).
• Solid knowledge of comminution technologies and mineral beneficiation processes.
• Strong analytical and problem-solving skills.
• Excellent written and oral communication skills in English or French.
• Ability to work independently and as part of a multidisciplinary team.

Preferred qualifications :

• Experience in grinding technology.
• Familiarity with process simulation software (e.g., USIMPAC, MODSIM, METSIM).
• Prior collaboration with industrial partners.
• Good knowledge of phosphate ores and North African mineral context.

Interested candidates should submit the following documents:

• Cover letter
• Detailed CV
• List of publications
• Copies of diplomas
• Professional references (minimum of
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