General Information
Abstract: This project was undertaken to evaluate the potential to economically recover additional metal values from the 4.6 million tons of Keno Hill flotation tailings which grades 3-4 oz/t silver, 0.8% lead and 0.9% zinc.
The study determined that the higher grade portion of the tailing, containing some 1.0 million tons at 5.35 oz/t Ag, responds well to cyanide heap leaching with a silver recovery of 50-60%. The testing data suggests that heap leaching is economically feasible at the current silver price of $US5.50/ounce and a currency exchange rate of 1.35 in favour of the US dollar.
The response to gravity and flotation concentration was poor.
The study determined that the higher grade portion of the tailing, containing some 1.0 million tons at 5.35 oz/t Ag, responds well to cyanide heap leaching with a silver recovery of 50-60%. The testing data suggests that heap leaching is economically feasible at the current silver price of $US5.50/ounce and a currency exchange rate of 1.35 in favour of the US dollar.
The response to gravity and flotation concentration was poor.
Authors: Hawthorne, G.
Map Scale: 1 : 0
NTS Mapsheet(s): 105M
Citation: Hawthorne, G., 1996. Investigation into the Reprocessing of Elsa Tailings. Indian & Northern Affairs Canada/Department of Indian & Northern Development: Exploration & Geological Services Division, Open File 1996-3(T).
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| Name | Comment | |
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| Report | File is MB | Download PDF |
Location Map
NTS Mapsheet(s): 105M
Related Occurrences
| Name | Number | Type | Status |
|---|---|---|---|
| Elsa Tailings | 105M 083 | Hard-rock | Deposit |
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