A rudimentary treatise on the metallurgy of silver and lead .. (1861)
Lamborn, Robert H · London, J. Weale · leaf 130
A WITH IRON. TREATMENT OF GALENA WITH IRON IN REVERBERA¬ TORY FURNACES. This plan was at one time in use in France for the reduction of Spanish* galena, whose gauge was largely quartzose. It takes advantage of the property pos¬ sessed by metallic iron, when brought in contact with galena at a high… … a lateral door with 800 pounds of galena in the form of a powder, and holding about 80 per cent, of lead. This was mixed with 200 to 240 pounds of scrap or cast-iron, and heated rapidly until the galena began to agglomerate. Then the temperature was held station¬ ary, and the charge stirred, that…
Silver · Lead
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