arentzen c bhappu r 2008 high efficiency ball mill grinding engineering and mining journal apr 2008 p 62 68
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… “ Tumbling Mills,” for ball mill, … of Mineral Engineering Mining Journal, Books Ltd., London, 1976, p … when large capacity and high efficiency are …
Method for thiosulfate leaching of precious metal-containing …
Bhappu, R.B.; “Status of Non … American Mining Congress, vol. 1, Apr. 24-28, 1988, … Engineering and Mining Journal, vol. 188 (Jun. 1987), pp. 42-47.
US Patent # 5,834,294. Biooxidation process for recovery of …
… "Mining Engineering", Apr. 1988, … Bhappu, R. et al., … Biological Leaching of Mill Products, Joint Meeting of the B.C. Section and Merrit Branch, C.I.M., …
