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That doesn't sound like much? That's less than 100USD per tonne (approx $40/g current gold price) Is there much other valuable stuff in the ash to make the ven
by test1235 8y ago
That doesn't sound like much? That's less than 100USD per tonne (approx $40/g current gold price)
Is there much other valuable stuff in the ash to make the venture worthwhile?
- msl 8y agoI dug up the original article for some fact checking, and it seems my previous post has a few mistakes in it. There are "grams" of silver and gold (each or together? The article does not specify.) and "kilograms" of copper in a tonne of ashes. Other metals are also extracted, but their amount or value is not specified. It further turns out that there is a monetary payment for the service, but it is low because of the valuable metals. The article also tells that the machine can sort around 100000 tonnes of ashes annually.
- jdietrich 8y agoAccording to this article, a good open-pit gold mine has deposits of about two grams per tonne. http://www.mining.com/web/making-the-grade-understanding-exploration-results/ http://www.mining.com/web/making-the-grade-understanding-exp...