A solution with a pH value which is less than 7 is acidic. The acids which react with metals usually have quite a low pH, of either 3 or less. Some metals react with acids and when they do the ...

If you read media coverage about copper-nickel mining, it’s likely you’ve seen references to one of its concerns: the potential for acid rock drainage. This is something the mining industry takes very ...

The previous hydrometallurgical flowsheet that was included in the PEA (preliminary economic assessment [1]) was based on a more costly and complex gangue-leach – caustic-crack process. Upon joining ...