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Gold/Mining/Energy : Global Platinum & Gold (GPGI)

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To: Tim Hall who wrote (8790)	12/11/1998 2:18:00 PM
From: Richard Mazzarella	Read Replies (1) of 14226

Tim, if I understand the process, the smelting of the precipitate is to have the precious metals preferentially diffuse from the precipitate into the copper. That part of process must be inherently inefficient. Too hot and you vaporize gold, too cool and the diffusion rate is low. I bet that some very smart chemists would know how to take the precipitate and eliminate more of the nonprecious compounds to increase the OPT of the concentrate. Certainly I'm not skilled in this science and art, but I suspect that the precipitate is orders of magnitude greater concentration than any conventional PGM ore. I'd collect the slag also. <VBG>

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