Golden Mile ore is of two main types weathered oxide ore from near the surface which is free-milling with the gold easy to extract, and sulphide ore in deeper ore bodies where the majority of the gold is locked as inclusions in tellurides and pyrites and is difficult to extract. In the sulphide or telluride ore, the gold is chemically combined with tellurium, an element related to sulphur, and the complex extraction process involves several stages.Get A Quote
The sulphide ore from the Open Pit is refractory and requires a complex series of processes to extract the gold. The free-milling Mt Charlotte ore, which is easier to process, was formerly direct-leached after grinding but is now combined in small batches with the Fimiston sulphide process. The ore from the Fimiston Open Pit and Mt Charlotte Underground Mine is processed at KCGMs Fimiston and GidjiProcessing Plants.
The Fimiston and Gidji Processing Plants were commissioned in 1989, with Fimiston undergoing two expansion stages to become one of the largest milling complexes in Australia.
The process of extracting gold from sulphide ore begins when the trucks deliver the ore from the blast site to the ROM run of mine pad at the Fimiston Plant. Here the crusher reduces it to chunks of rock about the sie of a fist. The ore is then ground into very fine particles less than one-fifth of one millimetre in diameter in large rotating SAG Semi Autogenous Grinding and Ball Mills which look like huge steel drums.
Water is added to the process, creating mud-like slurry which is pumped to large tanks called flotation cells. Air is added to the bottom of the agitating flotation cells and the resulting froth which gathers at the top contains nearly all the gold. This combination of free gold, gold-bearing pyrite and telluride particles is known as sulphide concentrate.
The concentrate is dried by filtering before it is then either treated in the 10 tonne per hour tphUltra Fine Grinding UFGMill at Fimiston or is trucked to the Gidji Processing Plant, 20 kilometres north of Kalgoorlie-Boulder. At Gidji, the concentrate is treated in the either the 10tph UFG Mill or the new30tphUFG Mill which was opened in June 2015.
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Regis Resources extracts gold ore at its Rosemont mine in Western Australia. An integrated crushing and screening plant, supplied by Sandvik, helps enable the mine to meet its production goals.
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Gold ore crushing process includes primary crushing and secondary crushing Turbo 600,Turbo 900,Turbo 950, also include the beneficiation processing. 90 555 842 8686 email160protected.
Gold ore crushing process includes primary crushing and secondary crushing Turbo 600,Turbo 900,Turbo 950, also include the beneficiation processing. 90 555 842 8686 dragonemail160protected.
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