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Gold/Mining/Energy : Global Platinum & Gold (GPGI) -- Ignore unavailable to you. Want to Upgrade?


To: Richard Mazzarella who wrote (8276)11/7/1998 9:06:00 AM
From: Tim Hall  Read Replies (1) | Respond to of 14226
 
Richard,

Copper mines that mine sulfide ore, float the copper sulfide and produce a concentrate. These copper sulfide minerals contain small amounts of pm's. When the concentrate is smelted, much like a fire assay, the pm's stay with the copper. These smelters also use silica as a flux. At times they buy quartz for flux which contains gold and silver. These also stay with the copper. At the copper refinery, the copper is disolved and then electro-plated. This leaves behind a sludge which contains the pm's. Some refineries recover their own pm's and some sell the sludge to other pm refiners.

I think it should be possible for GPGI to sell their copper dore containing the pms to a copper refinery.

When GPGI dissolves the copper and sends the solution to their resin columns, I am not sure what happens to the copper. I don't know if it collects on the resin or if it stays in solution. If it stays in solution they must have some way to recover it. If it goes to the resin and they send it to Sabin, it seems to me that it would be more logical to just send the copper dore to a refiner.

Tim