What To Do When Gold Recovery and Assay Values Differ
May 2018 by Don Robinson
Before going into an analysis of the ore composition, two other major factors will affect the result. These are the accuracy of the assay and the effectiveness of the mill for the gold recovery.
Centrifugal bowls are very efficient, and with proper operation they can consistently achieve gold recoveries above 95% with gold of about 50 mesh size.
Take a look at the picture—it’s pretty simple and you can build it yourself.
I had never run an impact mill before, but anything involving rocks, water and a big electric motor sounded great.
Last month, one of our readers requested an article regarding the possible use of Google Earth for prospecting research. It was a good idea, so here it is.
There are good and bad ways to melt gold. In this article, we’ll take a look at the right way to melt gold without losing any of the valuable metal.
The ideal leaching chemical would leave behind what we don't want or need in the ore and take only the valuable metals.
Once I have established the presence of gold in the sample, I collect five-gallon bucket quantities of the rock material for processing back at my shop.
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