Who owns Talvivaara Mining Company?
Who owns Talvivaara Mining Company?
The mining licenses for this area were originally granted to Finland-based stainless steel company Outokumpu in 1986, and the exploration rights were subsequently transferred to Talvivaara in February 2004. In May 2007, Outokumpu exercised its option to acquire a 20% interest in Talvivaara.
Where are the Talvivaara orebodies located?
The Talvivaara orebodies sit within the Kainuu Schist Zone, a north-south trending schist belt that extends from Rautavaara in the south via Sotkamo, Ristijärvi, Paltamo and Puolanka through to Pudasjärvi in the north.
What is the recovery rate of Talvivaara?
The bacteria used in the Talvivaara process grow naturally in the ore, and the company reports recovery rates of up to 98% of metal from ore to solution. The heap leaching will be operated in two stages, a primary heap pad residence time of 1.5 years and a secondary pad residence time of 3.5 years.
What is the process flow at Talvivaara?
The process flow at Talvivaara consists of three main steps – crushing, bioheapleaching and metals recovery. Crushing will be carried out in three stages, followed by agglomeration with sulphuric acid to consolidate the fines with coarser ore particles.
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