Download e-book for iPad: Chemistry of Gold Extraction by John Marsden

By John Marsden

ISBN-10: 0873352742

ISBN-13: 9780873352741

The Chemistry of Gold Extraction offers the extensive base of information now required by way of all these operating within the gold extraction and gold processing industries. The e-book bridges the distance among study and by means of emphasizing the sensible functions of chemical ideas and methods. The technical reference contains in-depth discussions on historic advancements; ore deposits and procedure mineralogy; Read more...

summary: The Chemistry of Gold Extraction presents the wide base of information now required through all these operating within the gold extraction and gold processing industries. The ebook bridges the space among study and through emphasizing the sensible functions of chemical ideas and strategies. The technical reference comprises in-depth discussions on ancient advancements; ore deposits and method mineralogy; strategy choice; ideas of gold hydrometallurgy; oxidative pretreatment; leaching; resolution purification and focus; restoration; floor chemical tools; refining; effluent t

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These are listed in the following sections. Eluvial (or residual) placers. Usually such deposits are overlying, or located at or very near, the parent deposit and consist of weathered rock from which some of the finer and lighter minerals have been washed away, leaving gold at a higher concentration. Because prolonged mechanical erosion by water has not occurred, the gold grade is typically lower than other placer types. , with the host rock weathered to form hydrated iron and aluminum oxides with silica).

1). The largest operation in Nevada in 1990 was at Round Mountain, which treated approximately 40,000 tpd. 3 Refractory Ores During the 1970s and through the 1990s, major efforts were directed at the treatment of socalled refractory ores, that is, ores that could not be effectively treated by simple cyanidation (see Chapters 2 and 5). Historically, severely refractory ores and concentrates, whether sulfidic, carbonaceous, telluride, or a combination of these, have been roasted to completely oxidize the refractory portion of the ore and render the contained gold leachable.

14] Motherwell, W. 1914. Flotation test at Mount Morgan. Mining and Scientific Press 53140:1044–1046. W. 1933. Flotation of gold from river sand and black sand. Mining Journal 16(23):3–4. [16] Gold Fields Mineral Services Ltd. Gold Survey Reports, 1981–2004. London: Gold Fields Mineral Services Ltd. [17] Green, T. 1984. Pages 63–76 in The New World of Gold. New York: Walker & Co. H. Boyle. 1986. Gold Availability (World): A Minerals Availability Appraisal. IC 9070. S. Bureau of Mines. Copyright © 2009 Society for Mining, Metallurgy, and Exploration, Inc.

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Chemistry of Gold Extraction by John Marsden

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