Copper $ 5.486 / lb 2.56%

Brent Crude Oil $ 61.04 / bbl -0.20%

Palladium $ 1606 / ozt 3.85%

Crude Oil $ 57.32 / bbl -0.31%

Natural Gas $ 4.116 / Btu -1.32%

Silver Futures $ 63.94 / ozt 3.09%

Aluminum Futures $ 2860.75 / ton -0.33%

Micro Gold Futures $ 4375 / ozt 1.03%

Micro Silver Futures $ 63.96 / ozt 3.08%

Platinum $ 1806 / ozt 2.36%

Gold Futures $ 4375 / ozt 1.04%

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The AmmLeach process: cutting costs in base metals extraction

International Mining | March 23, 2010 | 4:13 pm

A report commissioned by Alexander Mining examining the construction and running of a typical 50,000 t/y and 100,000 t/y copper/cobalt mine in the Democratic Republic of the Congo (DRC) using its AmmLeach^® process, compared with conventional sulphuric acid, has shown “substantial capital and operating cost savings” according to CEO Martin Rosser. AmmLeach uses ammonia-based chemistry under ambient conditions to selectively extract base metals. (more…)