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Gold plated telecoms connectors. Processor legs/lids. Older gold plated boards. From a practicable perspective AP's uses for ewaste are in reality limited by yields, which shortens the list. For much of the visible gold in ewaste surface leaching of some kind is far better therefore it's very much a cherry picking exercise.
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Heap leaching can be considered as a percolation process on ore piles. The process is characterized for its economic cost against the agitated leaching process when the ore deposit has a low gold content. Typically the process …
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