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Gold/Mining/Energy : A New Age In Gold Refining
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To: Chuck Bleakney who wrote (513)1/22/1998 7:11:00 PM
From: Chuck Bleakney   of 672
 
Well I'm back from class and will continue...

The other thing to consider is plate out losses. I contend that this
should not really be a problem as long as they are percentage wise
not too high and I recycle my plated out copper back to the producer to use again. This way the cycle will saturate after a few passes through and your true values will come out. For example:
Lets say for sake of arguement that the plate out losses are fairly high at 20% of the goodies.
First pass through you get 80% of the value out. It goes back to the producer and is reused. Now it has a 120% load of goodies. 80% of that produces 96% of the goodies. It goes back with a 24% load. It is reused and comes back with 124% load, and 80% recovery of that yields 97%... etc. (As an asympotic function it eventually approaches 100% recovery, 125% load) There would be a 25% load in the material if
it was eventually retired without further processing. So its not
even necessary to be too careful with the recovery percentage as long
as it is significant and you reuse the plated out materials for collection from the ore again. Now there may be a question as to whether or not it is as effective at collection of the goodies from the ore with this initial load of 25% as it would be at 0%.
It also has the effect of not introducing any values accidentally from the source of copper you have, which may be significant if you are using scrap metal. This could skew your data, especially if your process specifically breaks down clusters that might not show up in
a standard assay and be present in what you and the rest of the industry believe is to be relatively pure copper.

Now that was a long thought...

Chuck
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