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Gold/Mining/Energy : Naxos Resources (NAXOF)

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To: jbIII who wrote (14475)	7/19/1998 11:56:00 PM
From: GlobalMarine	Read Replies (1) of 20681

TO ALL: Does anyone know what happened to Dr. Bill Groves' recovery method which he patented a few years ago (utilizing sodium thiosulphate)? Dr. Groves wrote a November, 1996 research article entitled "Geology and Mining of Gold Deposits in Dry Lakebeds in the Mohave Desert." Among other things, the report said that "current experience (1/2 T scale plant data) shows a primary black precipitate can be produced in the .5-5.0 oz/T range (also containing Ag, PGE, RE credits) at about 1% weight of heads. This 1% figure derives from a (relatively inefficient) single stage leach, with roughly 50% of the pregs lost in the tails mud (simple decantation, and a polish-filtering of decant), so this recovery weight should be effectively doubled by efficient centrifuging and a multi-stage operation." Does anyone know what happened here, and whether this method could still work? In this example, I don't care if the single stage leach is inefficient, all that counts is whether one can make money from it. Any comments welcome.

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