Retreatment of Residues and Waste Rock - SAIMM
Retreatment of Residues and Waste Rock D.W. Bosch 12.1 Introduction From the commencement of gold mining on the Witwatersrand in 1887 up to 1984, a total of approximately 4,2 billion tons of gold ore has been milled ... Tube mills were introduced in 1904 to grind the stamp mill product fur ...
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