Murthy, D S R and Kumar, Vinay and Rao, K V (2003) low-grade refractory gold ore through physical beneficiation an thiourea leaching. Hydrometallurgy, 68(1-3) (IF-1.227). pp. 125-130.
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Abstract
The work carried out on the processing of a low-grade and refractory gold ore using thiourea is presented. Direct leaching of the "as-received" ore with thiourea has yielded only 16% gold extraction. Starting with ore containing 14 g/t of gold, it has been possible to generate a sulphide concentrate with 6.1 g/t of gold by physical beneficiation of the ore through froth flotation. Thiourea leaching of this flotation concentrate after pressure, pre-oxidation has resulted in gold extraction of 98%, with an overall gold recovery of 74%. Pressure oxidation was found to be slightly superior to roasting for the pre-oxidation of the refractory gold ore/concentrate. (C) 2003 Elsevier Science B.V. All rights reserved.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | low-grade gold ores; leaching; refractory ores; floatation |
| Subjects: | Materials Science |
| Divisions: | Metal Extraction and Forming |
| Depositing User: | Users 5 not found. |
| Date Deposited: | 25 Jun 2012 04:13 |
| Last Modified: | 08 Dec 2015 04:25 |
| URI: | http://eprints.nmlindia.org/id/eprint/5396 |
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