Cyanide leaching.

HTH


Sheila



Parker Centre - [ Tradueix aquesta pàgina ]
Refractory (“difficult to leach with cyanide”) gold ores are problematic, as standard cyanide leaching only yields low gold recoveries. ...
www.parkercentre.com.au/about/research_highlights_of_2006_0... - 12k - Còpia en memòria - Pàgines semblants
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Hydrometallurgical extraction process - US Patent 5807421 Description - [ Tradueix aquesta pàgina ]
An alternative approach is to leach with cyanide as described in U.S. Pat. No. 3463710. This patent discloses an aqueous alkaline cyanide leaching of copper ...
www.patentstorm.us/patents/5807421/description.html - Pàgines semblants
Hydrometallurgical extraction and recovery of copper, gold, and ... - [ Tradueix aquesta pàgina ]
leach with cyanide as described in U.S. Pat. No. 3463710. This patent discloses an aqueous alkaline cyanide leaching of copper ores followed by ...
www.patentstorm.us/patents/5667557/description.html - Pàgines semblants
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Australia - Worth its weight in Gold - the Campaign to Save Lake ... - [ Tradueix aquesta pàgina ]
dig, crush, leach with cyanide. Barrick Gold (which recently merged with US- based Homestake Mining Corporation) plans to construct a huge pit, one kilometre ...
www.foei.org/en/publications/link/101/e10125.html - 36k - Còpia en memòria - Pàgines semblants



Gold Market Research INTRODUCTION The Australian gold industry is a - [ Tradueix aquesta pàgina ]
Other potential applications include heap leaching and processing gold ores that are difficult to leach with cyanide such as preg-robbing ores and high ...
www.docstoc.com/docs/.../Gold-Market-Research-INTRODUCTION-... Australian-gold-indus... - 54k - Còpia en memòria - Pàgines semblants
(WO/1979/000906) RECOVERY OF ELEMENTAL SULFUR AND METAL VALUES ... - [ Tradueix aquesta pàgina ]
... or sending it back to the hydrometallurgical circuit; leaching the residue from the ferric chloride leach with cyanide to selectively solubilize gold, ...
www.wipo.org/pctdb/en/wo.jsp?wo=1979000906 - 15k - Còpia en memòria - Pàgines semblants



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Note added at 1 heure (2009-03-22 09:47:56 GMT)
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I just realised I didn't translated the last part - in tanks!

Use in Mining - [ Tradueix aquesta pàgina ]
The slurry is agitated in the leach tanks, either mechanically or by means of air injection, to increase the contact of cyanide and oxygen with the gold and ...
www.cyanidecode.org/cyanide_use.php - 22k - Còpia en memòria - Pàgines semblants
Parker Centre - [ Tradueix aquesta pàgina ]
A new on-line cyanide analyser for measuring the concentration of active cyanide in leach tanks on gold mines has been developed by the Parker Centre. ...
www.parkercentre.com.au/news_and_events/cyanide_analyser_st... - 6k - Còpia en memòria - Pàgines semblants
Significant Incident Report 21 - Catastrophic Failure Of CIP Leach ... - [ Tradueix aquesta pàgina ]
EQUIPMENT: CIP leach tanks. HAZARD: Cyanide tailings, containing 70 ppm free cyanide. Hydrogen cyanide gas should the tailings and acid have mixed. ...
www.dme.qld.gov.au/zone_files/inspectorate_pdf/incident_rep... - Pàgines semblants