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Additional Information
Market:ASX
Sector:General Mining
EPIC:AEE
Latest Price: 0.15  (0.00%)
52-week High:0.34
52-week Low:0.13
Market Cap:22.39M
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Aura Energy Full Aura Energy profile here

Aura Energy (ASX: AEE) is a uranium explorer with advanced projects in Sweden, West Africa and Australia. The company is focusing on two main projects: the Storsjön Project located in Sweden’s Alum Shale Province, one of the largest depositories of uranium in the world; and the highly prospective Reguibat Project in Mauritania. 

 

Aura Energy’s main projects in Sweden are based on the Alum Shales, which have been historically known as one of the largest depositories of uranium in the world. Aura Energy has exploration permits and applications in three regions in west Africa: the Reguibat Craton in Mauritania, the Mauritanide Fold belt in Mauritania, and the Tim Mersoi Basin in Niger.

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Aura Energy bioleach breakthrough for uranium recovery at Häggån in Sweden

Wednesday, July 20, 2011 by John Phillips
Aura Energy bioleach breakthrough for uranium recovery at Häggån in Sweden

Aura Energy (ASX: AEE) has delivered better than expected bioleach testwork from the 291 million pound Häggån uranium deposit in central Sweden.

Chemical analysis demonstrated that the mineralisation is amenable to the generation of acid by bacteria, facilitating metal leaching - with small scale column leach tests indicating up to 75% uranium recovery.

Other significant extractions included nickel up to 65%, and zinc up to 60%.

More importantly - Aura said there is considerable scope for increasing recoveries such as using a finer crush, with further work planned on this potential low cost process route.

Bob Beeson, managing director, said that the results are a major breakthrough for the main project of the company.

“We knew that Häggån mineralisation had the potential to be amenable to bioleaching from research results reported in August last year, but these results are the first confirmation that bacterial heap leaching may be successful.

“To obtain 75% uranium extraction in the first column tests is well beyond our expectations."

Aura will now focus on improving extractions and determining the optimum conditions that can be used in a mining project.

 

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