) A new copper mine is planning on using an on-off leaching system in which the leach pad is reused, with the leached ma

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A New Copper Mine Is Planning On Using An On Off Leaching System In Which The Leach Pad Is Reused With The Leached Ma 1 (61.19 KiB) Viewed 39 times

) A new copper mine is planning on using an on-off leaching system in which the leach pad is reused, with the leached material being placed onto waste dumps. The cycle will consist of 1 months for heap construction, 12 months of leaching and 1 month for disposal. A number of separate leach pads will be used to ensure continuous production. The planned rate for the ore to be processed by leaching is 60 000 tpd. The SG of the ore is 2.4 and the stacked heap will have a voidage of 20%. The heaps will have a height of 15m. How much land area is required in order for the heaps to achieve this production rate? Include an additional 15% to account for the non-vertical slopes at the edges of the heap and the space for ancillary equipment.