Prairie River Minerals and NRRI pilot scram mining operation
8 Sep 2021
An iron ore separation process invented and used for decades on the Iron Range, travelled to South Africa for some efficiency upgrades.
Now it’s back in Minnesota, on a trajectory to retrieve valuable iron ore from legacy mine tailings piles.
Johann Grobler, Prairie River Minerals Technical Engineer, worked with an industry/university team to develop the patented Ultra-High Density Media Separation (UHDMS) process along Africa’s North Cape, and recently engaged NRRI’s expertise and scale-up equipment to test it on western Mesabi Range ores.
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Tom Lambrecht