Ok Tedi Crusher Replacement Project
Ok Tedi Mining Limited (OTML) operates a large scale copper and gold mining and processing facility in the Western Province of Papua New Guinea. Ore won from the open pit mine at an annual rate of 24 million tonnes feeds a processing facility consisting of a gyratory primary crusher, two parallel grinding modules, flotation and gravity ...
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References on time of concentration with respect to …
References on time of concentration with respect to sheet flow William Merkel, Hydraulic Engineer USDA, NRCS, National Water and Climate Center Beltsville, MD December 17, 2001 ... Oklahoma, has included a study of low flows. These were conducted in flat-bottomed channels 3 feet wide and 96 feet long, with a bed slope of 5 percent. ...
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Ok Tedi Copper-Gold Mine, Papua New Guinea: Fluid Flow …
This page describes some key features in and around the Ok Tedi Cu-Au porphyry deposit in Papua New Guinea. This is part of Roberto's Geosite. Ok Tedi Mine (Papua New Guinea): Fluid Paths, Magnetite Skarn and Sulfide Deposition in a Porphyry Cu-Au Deposit . Roberto Weinberg, Monash University, Australia.
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Flowsheet Investigation of Mineral Processing Plant
Process flow investigation is classified into full-process investigation and partial-process investigation. (1) Full-process investigation: This investigation is conducted by the production management staff to learn the overall operating conditions of mineral processing plant. It must be conducted when the process operation conditions are stable.
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Bioleaching of Ok Tedi copper concentrate in oxygen- and …
Three cultures, a mesophile T.ferrooxidans (DSM 583), a moderate thermophile Sulfobacillus accidophilus (YTF1) and an extreme thermophile (Sulfolobus BC65) were used to bioleach the Ok Tedi copper concentrate under the optimal O 2 and CO 2 enriched air in laboratory CSTRs (2L) at 30% O 2 and 10% CO 2 by volume. The positive effect of using …
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Geology map of Ok Tedi mine area, compiled from pit mapping by Ok Tedi
Download scientific diagram | Geology map of Ok Tedi mine area, compiled from pit mapping by Ok Tedi Mining Limited geologists in 2002 with some modification from Dobmeier (2013). Intrusive phases ...
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Ok Tedi environmental disaster
The Ok Tedi environmental disaster caused severe harm to the environment along 1,000 km (620 mi) of the Ok Tedi River and the Fly River in the Western Province of Papua New Guinea from 1984 to 2013, with the damage still ongoing. The lives of 50,000 people have been disrupted by the disaster. One of the worst environmental disasters caused by humans, it is a consequence …
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06-01
Confined Space permit issuer shows contractors the physical job location in the plant. -RISK DETAILS -Confined space incident where personnel are exposed to a hazardous environment …
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Ok Tedi Mining Ltd : The Heart of Papua New Guinea
Ok Tedi operates a large-scale copper and gold mining and processing facility in the Western Province of Papua New Guinea, with ore mined from at an annual rate of 24 million tonnes. Talent management is a key part of Ok Tedi's strategy. The company has around 1,800 permanent employees, with a similar number of embedded contractors and ...
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(PDF) Assessment and prediction of the impacts of …
The Ok Tedi copper mine currently discharges overburden and partially treated ore residues into the Ok Tedi, a major tributary of the Fly River. At peak production these discharges will result in ...
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Mineral Processing Flowsheets
The Mineral Processing Flowsheets shown on the following pages are based on actual data obtained from successful operating plants. Metallurgical data are shown in these flowsheets which incorporate Crushers, Grinding Mills, Flotation Machines, Unit Flotation Cells, and Selective Mineral Jigs as well as other standard milling equipment. The Flotation Machine, …
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Operations
The Ok Tedi mine is an open-cut copper, gold and silver mine located at Mt. Fubilan in the Western Province of Papua New Guinea. Up to 240 thousand tonnes of overburden (waste rock) is mined each day from a pit covering about 2.6 square kilometres. In addition, about 60 thousand tonnes of ore is mined each day and delivered to the mill for ...
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OK Tedi mine is not in massive corporate debt
Contrary to recent claims, Ok Tedi Mining Limited ("OTML") has not amassed K800 million in corporate debt. This is according to Minster for State Enterprises, William Duma said in response to a statement by the Member for Ialibu-Pangia Peter O'Neill, MP alleging that OTML had incurred a massive debt to support the Government as a 'milking cow' for Prime Minister …
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Processing Copper-Gold Ore at Ok Tedi
This paper describes the metallurgical processes at the 80 000tpd Ok Tedi Mining Limited concentrator, which treats copper- gold ore by single-stage crushing, SAG and ball milling and …
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Dissolved Copper Concentrations
Decreased copper in the tailings has resulted in a decrease in dissolved copper concentration in the Lower Ok Tedi and Middle Fly reach of the river from approximately 20 µg/L to approximately 7 µg/L. The levels of copper at all monitoring sites are the lowest recorded since 1986. About Us. Ok Tedi Mining Limited (OTML) operates the Ok Tedi ...
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Ok Tedi has moved from 'death row' to a 'sweet spot', says …
Graham said in 2017 Ok Tedi averaged $2.79 a pound from its copper production. This year, he expects the price to be between US$3 and US$3.20 a pound, and then trading at US$3.40-50 between 2019 and 2025. 'In 2013, Ok Tedi was at the 99 th percentile and on death row. Today, we are at the 12 th percentile.'
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Investigation of the reasons for copper and gold loss in the …
Ok Tedi Mining Limited generates a copper and gold concentrate from its porphyry and skarn ore deposits located at Mt. Fublian, Western Province, PNG. The predominant porphyry ore-type is blended with high grade skarn ores to optimize copper and gold feed grades to the concentrator. Current operation (2003) is to blend 80% porphyry with 20% ...
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2013 Final industrial training report -Ronald rom
Ore processing at OK Tedi consists of six stages: crushing, grinding, copper flotation, concentrate thickening, concentrate slurry transport and final thickening and filtration. The Mill department …
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Name already in use
sbm copper regrinding mill circuit flow sheetok tedi concentration flow sheet Grinding Mill China ok tedi concentration flow sheet [ 4.7 9471 Ratings ] The Gulin product line,cons
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Increasing fine copper recovery at the Ok Tedi
Printed in Great Britain 0892-6875/98 $19.00+0.00 INCREASING FINE COPPER RECOVERY AT THE OK TEDI CONCENTRATOR, PAPUA NEW GUINEA D. ORWE~, S.R. GRANOt, and D.W. LAUDER~ Ok Tedi Mining Limited, P.O. Box 1, Tabubil, Western Province, Papua New Guinea I" Ian Wark Research Institute, University of South Australia, Adelaide …
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Acid Rock Drainage Mitigation
Ok Tedi Mine is the only large copper mine in the world to separate sulphides from the tailings before tailings discharge to mitigate acid rock drainage.
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Ok Tedi eyeing extension of mine life to 2050
The Ok Tedi mine at Mount Fubilan in Western Province is PNG's longest-running mine, having produced more than 5.2 million tonnes of copper, 15.9 million ounces (oz) of gold and 36 million oz of silver since beginning commercial operations in 1984. ... Papua New Guinea's mining and gas project pipeline starts to flow. After a decade focused ...
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OK Tedi PAD Training 2025, Tabubil
Ok Tedi recognises and respects the environment and the communities within which Ok Tedi operates. Since 1989, Ok Tedi Mining Limited (OTML) has been shaping talented local youth into skilled professionals across various trades and office roles. Our comprehensive three-year program integrates cutting-edge technology and industry-leading practices.
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Geomorphology, Hydrology, and Climate of the Fly River …
The Fly basin has a humid tropical climate. Average rainfall varies with elevation (Moi et al., 2001).Falls in excess of 10,000 mm/year occur at the Ok Tedi mine site (1,500–2,000 m), declining to about 8,000 mm/year along the upper and middle Ok Tedi.Further decreases occur downstream with values of 5,250 mm/year being recorded at Kuambit just downstream …
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Ok Tedi Tailings Dredging
Tailings Dredging at Ok Tedi Mine Dredge Nu Explorer was specifically built to enable simple and cost effective transport to the most remote locations. Able to fit into two standard 40 foot open top containers, Nu Explorer was dispatched to the Ok Tedi mine, situated at an elevation of 1700m in the remote Western Highlands of PNG.
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Increasing fine copper recovery at the Ok Tedi
This paper describes laboratory and plant based investigations on methods to increase fine copper recovery during flotation treatment of Ok Tedi porphyry sulphide ores. Currently the Ok Tedi concentrator treats a mixed porphyry/skarn ore blend, which is ground to a d 80 of 180 μm with flotation carried out using a dithiophosphate ...
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Mining & Processing
Ore is mined and processed at an onsite flotation processing plant capable of treating up to 24 million tonnes per annum (Mtpa). The plant currently recovers copper, gold and silver into a …
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Geomorphology, Hydrology, and Climate of the Fly River …
Impacts assumed to be very local to the mine area only (e.g. Jenkins, 2016;Salomons and Eagle, 1990) and not reaching down the entire Fly River systemyet the onset of RMWD ensured extensive ...
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053
Effective inrush hazard management through the implementation of an Inrush Management Plan (or similar) is key to preventing injuries due to unplanned airblast, mud flow or inundation with …
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Velocity and Concentration Profiles in Sheet-Flow Layer of …
Amoudry et al (2008) validated the model for sheet flow sand transport against data obtained in oscillatory water tunnels with Conductivity Concentration Meters for intrawave sediment concentration in the sheet layer (Dohmen-Janssen, 1999;O'Donoghue and Wright, 2004) and for sediment velocities and fluxes in the sheet layer (McLean et al, 2001
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