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  • May 31, 2023
  • Industry News
Denison achieving high standards with unique Saskatchewan mine
Exciting things are occurring at Denison’s Wheeler River Uranium Project in northern Saskatchewan’s Athabasca Basin. The area contains the highest grade of uranium-bearing rock in the world. That has made it feasible for large mining operations such as Cameco’s McArthur River and Cigar Lake to remove the rock from underground, crush it and treat it in a mill at the surface to extract the uranium.

In contrast, the Phoenix deposit at the Wheeler River Uranium Project, of which Denison Mines owns 95 per cent, is similarly high-grade, but the smaller scale deposit provided an option to use alternative mining methods. In its quest to identify a mining method that would make the Phoenix ore body viable for development, Denison examined 32 different methods before arriving at the answer they needed.

The answer was the in-situ recovery (ISR) mining method, used by roughly half the uranium mines in the world, but never before in Canada for uranium. Rather than digging the rocks up and bringing them to the surface, ISR uses a liquid mining solution to dissolve the uranium right in the ground, then pumps the dissolved solution to the surface, where the solution is transformed into yellow cake, the same finished product made at any uranium mining and milling operation.

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Read the full story at Saskatoon StarPhoenix

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