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Production begins at Cameco uranium mine in Wyoming
May 15, 2013

Cameco Resources’ North Butte Mine in Wright, WY began production on May 13 and could account for a substantial portion of the state’s uranium production within two years.

The mine is part of a larger effort to expand uranium operations by Cameco Corp., the parent company of Cameco Resources. Two more mines are planned in Wyoming and three in Nebraska over the next few years despite weak prices. Uranium prices are about $40/lb, down from about $70/lb just before the Fukushima, Japan, nuclear disaster two years ago revived fears about nuclear energy as a safe power source.

“It’s not a strong market and there are a lot of factors influencing that. But we are moving ahead with our growth projects in the U.S. because we’re optimistic about the future of nuclear power,” Cameco spokesman Ken Vaughn to The Associated Press.

Cameco officials expect the North Butte mine to produce 300,000 lbs of uranium ore this year, with production ramping up to 700,000 lbs in 2015.
Wyoming produces more uranium than any other state — about 1.6 million lbs/year, or close to one-third of all U.S. production.

North Butte is an in-situ mine, where wells pump uranium-bearing solution from sandstone aquifers. At North Butte, the sandstone is about 600 ft below ground.

Other wells at in-situ mine sites inject a solution called a lixiviant — typically water mixed with oxygen and/or hydrogen peroxide, and sodium carbonate or carbon dioxide — to release the uranium. Equipment at the surface processes the solution into yellowcake, an intermediary ore that can be processed into nuclear fuel.

North Butte is a satellite mine of Cameco’s Smith Ranch-Highland Mine north of Glenrock in Converse County. Cameco will truck uranium-bearing resin from North Butte to Smith Ranch-Highland for processing into yellowcake, The Associated Press reported.

“We’ve done this sort thing for quite a while, but this is the first time having one that’s not part of the present mine site there at Smith Ranch-Highlands. It’s a new mine site,” Vaughn said.

Cameco also plans to add three satellite mines in the area of its Crow Butte Mine near Crawford in western Nebraska. In Wyoming, the company plans to develop another satellite mine near Smith Ranch-Highlands and a new mine in the Gas Hills area about 60 miles west of Casper.

The North Butte site has 54 full-time employees and contractors, according to Cameco.

Littleton, CO-based Ur-Energy and Casper-based Uranerz also are getting set to open new uranium mines in Wyoming in the next year or so, said Marion Loomis, executive director of the Wyoming Mining Association.

“Prices are down. It’s pretty disappointing on price. But you have to be ready to produce when prices do recover,” Loomis said.

 

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