http://www.springerlink.com/content/n08u41072184506w/fulltext.pdf
A nice description of an industrial set-up mainly working from copper ore, to pure copper and anode slime, to pure silver and another slime, to pure gold.
(45 kilo anodes... now we're talking silver-cell!)
A nice description of an industrial set-up mainly working from copper ore, to pure copper and anode slime, to pure silver and another slime, to pure gold.
(45 kilo anodes... now we're talking silver-cell!)