With positive results from stage 1, Aura Energy (ASX: AEE) has commissioned stage 2 which includes testing using bioleach technology for the extraction of uranium and other metals from the Häggån project, located in Sweden’s Alum Shale Province, one of the largest uranium deposits in the world.
The aim of the work is to determine the optimal process route for Aura’s giant uranium deposit at the Häggån project, in order to secure enhanced extraction of uranium, molybdenum and nickel from the Alum Shale.
This next stage will work with larger samples, a range of acidities and will test agglomeration as a means of enhancing permeability.
Bob Beeson, managing director, said “This next stage of work is built on the encouraging results of stage 1 and is another step closer to choosing an extraction method for uranium and other metals found within the Häggån project."
The company prefers the bioleach technology approach as capital and operating costs can be low in comparison with other technologies.
Preparatory work is expected to be completed in January with all bioleaching results expected by June 2011.