Separating gold from silica by tailored hydrometallurgical processes

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Australia is one of the world's largest producers of gold, and the ability to more efficiently separate gold from its ores will benefit the Australian economy by maximising the value of every tonne of ore which is removed from the ground. Inefficiencies in processing technology can lead to the loss of gold from extraction processes, and the reasons for some of these losses are poorly understood but are believed to be related to interactions between gold and silicate minerals. We will study these interactions with a view towards improving the percentage of gold present in the ores which is able to be extracted and used.