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This was to initially process existing oxide stockpiles. The Sable processing plant in Zambia was then used to extract copper metal and cobalt salt from the concentrate. Annual production capacity was estimated as 10,000 tonnes of copper cathode and 1,000 tonnes of cobalt carbonate. Phase two involved expanding the concentrator and building a new acid-leaching and SX-EW plant to produce copper and cobalt metal on site. In this phase, which used higher-grade copper ore from the Ruashi mine, capacity increased to 45,000 tonnes of copper cathode and about 3,500 tonnes of cobalt carbonate or metal. Capital costs of phase two were estimated at $ 335 million. Meterox, with debt of $ 2 billion in 2009, was forced to sell other assets in order to fund the phase two expansion.
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pits, and had to drill boreholes to gain a predictable supply. In the year ended 30 June 2008, Ruashi produced 10,767 tonnes of copper. Production of copper and cobalt from tailings near the Ruashi Mine continued until
December 2008. The second phase, mining the Ruashi ore body, started in the second half of 2008, with refining at the new SX/EW plant. 21,371 tonnes of refined copper were produced in 2009. Planned production levels from 2010 to 2013 were 36,000 tonnes per year of refined copper and 4,500 tonnes per year of contained cobalt. As of 2010 the mine had access to about 13.3 million tons of ore, graded at 2.9% copper and 0.43% cobalt. On this basis, the project had a life of about ten years.
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224:(UMHK) discovered the Etoile ore body in 1911, and the Ruashi ore body in 1919. For the next half century both properties were quarried intermittently for their high-grade copper ore. UMHK was nationalized in 1967. Control of all copper and cobalt exploration and production was given to Gécamines, established as the state mining company.
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Initial production began in June 2006, processing material from 56 dumps and tailings dams at Ruashi and Etoile. There were delays in ramp-up, mainly caused by a shortage of water. The mine had been taking water from open cast pits. Ruashi had to install pipelines to access water from deeper in the
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1,269 drillholes have been sunk on the Ruashi property over the years, and further drilling was conducted in 2003 and in 2005 to confirm asset size estimates. The project was developed in two phases. In the $ 31 million first phase, a concentrator was built at Ruashi using idle plant from O'okiep.
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The Ruashi mine is located at an elevation of about 1,285 metres (4,216 ft) above sea level. The climate is sub-tropical, with annual rainfall of about 1,200 millimetres (47 in) falling mostly in the
October to March period. Average temperatures are between 17 °C (63 °F) and
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24 °C (75 °F), with no marked difference between summer and winter. The region lies in a zone that would naturally be covered by Miombo
Woodland, deciduous tropical woodlands. Lying on the edge of Lubumbashi, much of the woodland has been cleared.
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335:"SECTION 12 EXECUTIVE SUMMARY OF THE COMPETENT PERSONS' REPORT AND VALUATION STATEMENT OF RUASHI HOLDINGS (PTY) LTD AND RUASHI MINING SPRL IN THE DEMOCRATIC REPUBLIC OF THE CONGO"
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The Ruashi mining project is operated by Ruashi Mining, which was originally 80% owned by
Metorex of South Africa and 20% by the DRC state-owned
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in
Katanga Province, Democratic Republic of the Congo. The project includes a plant to concentrate the ore from the Ruashi and
205:(SX-EW) processing plant. As of 2008, annual capacity was estimated to be 10,000 tonnes of copper and 1,000 tonnes of Cobalt.
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399:"Democratic Republic of Congo: Mineral Industry Overview"
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that is located about 10 kilometres (6.2 mi) from
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Copper mines in the
Democratic Republic of the Congo
487:"Metorex chief sings the praises of Ruashi project"
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189:is an open-pit copper and cobalt mine operated by
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372:. Government Printing Office. pp. 19–6.
308:. Government Printing Office. pp. 11–8.
236:. Ruashi Mining is now 75% owned by Metorex.
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369:Minerals Yearbook: Metals And Minerals; 2005
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16:Mine in the Democratic Republic of the Congo
220:dug pits and trenches in the area in 1907.
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340:. Metorex. 1 January 2010. Archived from
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517:. Metorex. 26 May 2010. Archived from
461:"Capital costs may increase at Ruashi"
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430:"Metorex sells stake in fluorspar"
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512:"Mining Analyst visit to the DRC"
459:Allan Seccombe (2 October 2006).
302:Geological Survey (U.S.) (2010).
203:solvent extraction electrowinning
428:Ines Schumacher (29 July 2009).
366:Us Dept of the Interior (2008).
79:Democratic Republic of the Congo
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555:Mining in Haut-Katanga Province
485:Dennis Ndaba (29 August 2008).
277:"Ruashi copper/cobalt project"
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222:Union Minière du Haut Katanga
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218:Tanganyika Concessions
201:mines, and a modern
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106:11.61667°S 27.55°E
409:on 2 January 2012
379:978-1-4113-1980-6
347:on 12 August 2011
315:978-1-4113-2965-2
283:. 20 October 2006
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69:Haut-Katanga
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240:Development
187:Ruashi Mine
109: /
85:Coordinates
51:Ruashi Mine
22:Ruashi Mine
544:Categories
528:8 November
496:8 November
470:8 November
444:8 November
413:8 November
351:8 November
287:8 November
258:References
249:Production
195:Lubumbashi
122:Production
97:27°33′00″E
94:11°37′00″S
234:Gécamines
228:Ownership
155:Gécamines
465:Miningmx
434:Miningmx
209:Location
127:Products
64:Province
27:Location
403:Afribiz
191:Metorex
162:Website
150:Metorex
146:Company
75:Country
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312:
199:Etoile
135:Cobalt
131:Copper
522:(PDF)
515:(PDF)
345:(PDF)
338:(PDF)
173:/mine
157:(25%)
152:(75%)
141:Owner
530:2011
498:2011
472:2011
446:2011
415:2011
374:ISBN
353:2011
310:ISBN
289:2011
185:The
171:.com
167:www
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Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
