Ok Tedi Mining Limited OTML operates the Ok Tedi Mine, the longest running open-pit copper, gold and silver mine in Papua New Guinea. Our registered office is located in Tabubil, Western Province, PNG. We also have a representative office in Port Moresby, PNG and a
Jan 11, 2016 The OK Tedi mine participates in open pit mining. The purpose of open pit mining is to extract large quantities of the ore by exposing it through excavating and relocating large quantities of waste rock. This waste rock is dumped elsewhere, so that the mine workers can extract the ore and continue to rid of more waste rock.
Ok Tedi Mine is the only large copper mine in the world to separate sulphides from the tailings before tailings discharge. The risk of acid rock drainage identified before 2008 due to high sulphur levels and insufficient neutralising capacity in the sediments is now managed with the implementation of the Mine Waste Tailings Project MWTP.
Extract of sample The Ok Tedi Mine Case Study . The Ok Tedi Mine Case Study Question One The OK Tedi Mine in Papua New Guinea PNG has the biggest reserves of copper globally. The mine contributes to approximately 20 of the countrys total export. The Ok Tedi mine contributed over 100 million dollars in taxes, royalties and other state ...
Just one part in 114 0.87 of the material milled is extracted as copper with less than one part per million as gold. The rest of the mountain, with its unextracted copper, manganese, iron, cadmium, zinc and lead, plus the cyanide and arsenic used in the extraction process, ends up in the Ok Tedi River.
Ok Tedi mine is the only large copper mine in the world to separate sulphides from the tailings before the tailings discharge. The risk of acid rock drainage identified before 2008 because of high sulphur levels and insufficient neutralising capacity in the sediments is now managed with the implementation of the Mine Waste Tailings Project MWTP.
- e.g. Ok Tedi Copper Mine PNG Gold Ridge Mine Solomon Islands. Trend of Marine Mining Marine mining is a relatively new method of developing mineral deposits and ongoing since the 1960s Nearshore mining in the forms of aggregates extraction dredging is common in PICs Shallow marine mining of placer diamond has occurred in ...
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Jun 06, 2021 Ok Tedi Mining Limited says that since the mines opening in 1984, it has contributed more than K10bn US2.77bn to assist the development of economically sustainable local
Ok Tedi Mining has returned to usual production levels after a fire damaged two processing circuits at the Papua New Guinean copper-gold-silver mine during December. The company restored the ...
May 01, 2021 The Ok Tedi copper-gold mine in Western Province, Papua New Guinea, is situated in the western part of the Ok Tedi Complex where monzodiorite to quartz monzonite intrusions are associated with porphyry- and skarn-style copper-gold mineralization. The Pleistocene age of the intrusive rocks and mineralization provides an opportunity to study the ...
Aug 18, 1995 OK-TEDI River Mine Disaster. In Papua, New Guinea, the giant Australian multinational, BHP, has been operating a large copper mine for over a decade. Instead of building a tailings dam, as do most other similar mines in other countries, BHP has been dumping about 100,000 tons of mining waste every day into the OK-TEDI and FLY rivers.
from the Ok Te di copper mine into the Ok Tedi River. But in the draft originally proposed by BHP as the operator of the mine, the recipients 56 I The Ok Tedi Settlement .
Number 0602 BHP Billiton today completed its withdrawal from the Ok Tedi copper mine in Papua New Guinea with the transfer of its 52 per cent equity stake to PNG Sustainable Development Program Limited Program Company, a development fund that will operate for the benefit of
Aug 18, 2010 Papua New Guinea is host to some world-class gold and copper mines, including the Porgera gold mine, the Ok Tedi copper mine and the Lihir Island gold mine. Between them, these three mines exported a total of 163.8 tons of gold between 2004 and 2006, and in the same period Ok Tedi Mining Ltd exported over 510,000 tons of copper.
Copper Applications in Mining amp Extraction. By BHP. Mined copper ore is processed into a fine, gray powder called concentrate, which contains up to 45 copper. In BHP plants within the United States all of the concentrate is shipped either by rail or by truck to the smelter at San Manuel. ... Other mines, such as Escondida in Chile and Ok Tedi ...
Aug 26, 2015 Copper Mining amp Extraction Process Flow Chart. This flowchart made of machinery icons explains or expresses in simple but clear terms the step of the Copper Mining and Copper Extraction Process. Starting from either open-pit or underground mining and using a different relevant treatment method for oxide or sulphide copper mineral ore.
KMHLs core asset is ownership of 67 per cent of Ok Tedi Mining Ltd, while the 17.4 per cent ownership interest held by it in Bougainville Copper Ltd that has been pledged to Panguna landowners and the people of Bougainville.
The mine is located on Mt. Fubilan, in the headwaters of the Ok Tedi River, as a joint ownership between Broken Hill Proprietary Company BHP 52, the Papua New Guinea state 30 and Canadian miner Inmet 18. 1 Having originally opened for gold extraction in 1984, the operation diversified into copper production 3 years later. Gold production ceased in 1988.
The Ok Tedi Negotiations The Keystone Center i Abbreviations and Definitions ARD Acid Rock Drainage CMCA Trusts Funds provided pursuant to the Community Mine Continuation Agreements. CMCA Review The mandated review of the CMCA Agreement Operations triggered in part by environmental exceedences. Interest-Based Negotiation Interest-based or principled bargaining
Mar 31, 2021 Papua New Guineas Ok Tedi Mining Ltds copper mining operations will resume from Thursday, the company said on Wednesday, after they were suspended for two weeks due to a surge in COVID-19 cases ...
The Ok Tedi mine is an opencut copper gold and silver mine located at Mt. Fubilan in the Western Province of Papua New Guinea. Approximately 240 thousand tonnes of overburden waste rock is mined each day from a pit covering about 2.6 square kilometres.
Aug 31, 2017 Fish populations utilised by riparian populations along the Fly River, Papua New Guinea PNG, downstream of the Ok Tedi gold and copper mine have markedly declined in species richness between 21 and 90 and biomass between 57 and 87 during the operation of the mine Storey et al., The Fly River Papua New Guinea. Environmental studies in an impacted tropical river system.
Jun 12, 2018 Graham said Ok Tedi Mining has made major advances in its costs. In 2013, Ok Tedi was at the 99 th percentile on a comparison of global costs and on death row. Today, we are at the 12 th percentile. We have been able to lower our costs, get them down to the best quartile of copper producers around the world.
Posted 6 days ago Feb 07, 2017 The Ok Tedi mine, operated by Ok Tedi Mining Limited OTML, is a major producer of copper concentrate for the worlds smelting market, yielding some 600,000 tonnes of high-grade copper concentrate a year and 500,000oz of gold. The mine is located on Mount Fubilan, Western Province of PNG, with an altitude ...
Mar 01, 2012 The massive Ok Tedi copper mine, which opened in 1984, is not only the largest contributor to the economy of Western Province but also to the entire economy of Papua New Guinea. It is one of the worlds largest copper mines. To give some idea of the mines importance to the country, in 2010 it accounted for 18 of Papua New Guineas gross ...
Fish populations utilised by riparian populations along the Fly River, Papua New Guinea PNG, downstream of the Ok Tedi gold and copper mine have markedly declined in species richness between 21 and 90 and biomass between 57 and 87 during the operation of the mine Storey et al., The Fly River Papua New Guinea.
The Ok Tedi Open Pit Mine is located at the head-waters of the Ok Tedi River, in the Star Mountains of the Western Province of Papua New Guinea see Figure 1. Daily rainfall records in the project area are available from 1985 onwards. The average rainfall in the period 19852010 is between 8m and 10m per annum depending on the position of ...
The primary ore is crushed and ground using Semi-Autogenous Grinding and Ball mills to a final grain size of approximately 180 microns. The finely ground material is treated in two mineral floatation circuits to extract the copper, gold and silver as a copper concentrate.
The main type of pollution at the Ok Tedi Copper Mine is the discharging of mining waste into the Ok Tedi River in Papua New Guinea. The pollution problem began in 1984 following the collapse of a tailing dam used by the company that was responsible for mining copper and gold at the site. By 2000, more than 90 million tons of mine waste had been released into the river and destroyed tens of villages,