Ideal technology for extracting from a tailings dam with 3gm more or less of gold a tonne of ore. "The Albion process technology was developed by MIM holdings (now Xstrata) to treat concentrates produced from refractory base and precious metal ores.The process was developed in 1993 and has since been patented in 45 countries.The process consists of a hot oxidative leach of finely ground concentrates of atmospheric pressure.The process does not employ autoclaves and does not rely on bacterial cultures.The albion process offers the mining industry an effective and simple solution for the treatment of refractory sulphide ores ,to maximize metal recovery and minimise costs.The albion process has been successfully tested on over 70 different ores and concetrates.In parallel the IsaMill technology has been furthur developed into an extremely robust proven and now large scale ultrafine grinding technology,with 18 mills worldwide." Google albion technology for more.
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