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Full-Text Articles in Mining Engineering
Russell's Lixiviation Process For Silver Ores, Frank L. Tyrrell
Russell's Lixiviation Process For Silver Ores, Frank L. Tyrrell
Professional Degree Theses
"It has long been known that there are many ores worked in which a large per cent of silver and gold are continually lost, either in tailings or slimes. As far back as 1848 Dr. Percy suggested the extraction of silver from argentiferous ores, by its conversion into the chloride. The chloride was treated with sodium hyposulphite"--Russell's Process, page 1.
The Cyanide Process For Gold, John C. Reid
The Cyanide Process For Gold, John C. Reid
Bachelors Theses
"Since the discovery of Cyanogen in the latter part of the 18th century records of many experiments are in existence, showing, that at various periods, exhaustive researches have been made, in which the point at issue was to investigate that property which now constitutes the foundation of what is known to Metallurgical Science of today as The Cyanide Process, vis. The solvent power of alkali cyanides on gold & silver"--page 2.