The Albion Process™ is a combination of ultrafine grinding and oxidative leaching at atmospheric pressure. The feed to the Albion Process™ are base or precious metal concentrates. The sulphides in the feed are oxidised and liberated, allowing the wanted metals to be recovered by conventional means.
The Albion Process™ was developed in 1994 by Glencore and is patented worldwide.
There are three Albion Process™ plants currently in operation. Two plants treat a zinc sulphide concentrate and are located in Spain and Germany. A third Albion Process™ plant is operating in the Dominican Republic treating a refractory gold/silver concentrate.
A fourth plant is under construction in Armenia, and will be treating refractory gold.