the valuable minerals are separated from the gangue through concentration. The final concentrate is obtained by repeated processing and is smelted or leached in order to get a Dore bar. circle blade sawmill mill problems; what to do | sawmill.PanAust reports mill failure at Laos gold/copper mine . 22nd June 2009 By: Esmarie Iannucci - Creamer Media Senior Deputy Editor: Australasia,

... Three case studies were examined from gold and copper mining operations which is similar to the known geology at the Lalor …Gold recovery comprises similar stages to the processing of most ores. First two of which experienced significant problems with their mine to mill reconciliations over extended periods of time.*Copper equivalent is based on 85% copper recovery,