Location | |
---|---|
Location | Athabasca Basin |
Province | Saskatchewan |
Country | Canada |
Coordinates | 57°45′40″N105°03′06″W / 57.76111°N 105.05167°W |
Production | |
Products | Yellowcake (U3O8) |
Production | 16.1×106 pounds (7.3×106 kg) |
Financial year | 2017 |
History | |
Discovered | 1988 |
Opened | 1999 |
Active | 1999–2018 |
Owner | |
Company | Cameco (70%) Orano Canada (30%) |
The McArthur River Uranium Mine, in northern Saskatchewan, Canada, is the world's largest high-grade uranium deposit.
The mine is owned by Cameco (70%), and Orano Canada (30%) (formerly Areva Resources Canada, formerly COGEMA Resources Inc.) Cameco is the mine operator.
In 2012, McArthur River was the world's largest producing uranium mine, accounting for 13% of world mine production. [1] Canada, as a whole, produces 15% of the world's uranium production.
The McArthur River deposit was discovered in 1988. The property is located 620 kilometres (390 mi) as the crow flies north of Saskatoon, Saskatchewan, and 80 kilometres (50 mi) northeast of the Key Lake mill in the uranium rich Athabasca Basin. Mine construction began in 1997, with production commencing in 1999. [2] The mine achieved full commercial production in November 2000. Production is regulated at 18.7×106 pounds (8.5×106 kg) of yellowcake a year with the ore being processed through the Key Lake mill.
Between 2000 and 2013, the McArthur River/Key Lake operation produced 250.6×106 pounds (1.137×108 kg) U3O8. [3] This production figure includes blended low grade stockpiles from the former Key Lake mine as well as ore derived from the McArthur River mine. Ignoring the fact that 2000 mostly saw a ramp-up to full scale production and the effect of the Key Lake mine ore, this averages to roughly 17.9×106 pounds (8.1×106 kg) yearly production or some 96% of the above-mentioned 18.7 million pound per year limit.
In July 2018, citing continued low uranium prices, Cameco suspended McArthur River/Key Lake operations and placed the mine on care and maintenance. [4] As of April 2020 [update] , the mine remains under care and maintenance. [5] On February 9, 2022, Cameco announced it would reopen the mine. [6]
As of December 31, 2017, the mine had Proven and Probable Reserves of 391.9×106 pounds (1.778×108 kg), with an average grade of 6.89% U3O8. [7] At an average yearly production rate of 16.1×106 pounds (7.3×106 kg) this gives a calculated range of roughly 24 years.
Given that much of the uranium recovered here goes to fuel CANDU reactors which can forgo uranium enrichment, it is possible to calculate a heating value for the uranium mined at this mine. At a typical burnup of 200 MWhthermal per kilo of heavy metal [8] The yearly production of roughly 16.1×106 pounds (7.3×106 kg)U3O8 is equivalent to roughly 6.2 kilotonnes (6,100 long tons; 6,800 short tons) of uranium metal and per the above burnup value some 4.46 exajoules (1.24×1012 kWh) (or the equivalent of 1.066 gigatonnes of TNT (4.46 EJ)) of thermal energy can be produced from this much uranium in CANDU type reactors. For comparison, the North Antelope Rochelle Mine, formerly the largest coal mine in the world, produces some 100 megatonnes (98,000,000 long tons; 110,000,000 short tons) of coal per year at a heating value of 8,800 British thermal units per pound (20,000 kJ/kg) for an overall heat content of roughly 2.047 exajoules (5.69×1011 kWh).
The mine is serviced by the McArthur River Airport to the northeast. It is also connected to the south by a restricted access haulage road. According to Google Maps, this road is Saskatchewan Highway 914, however the official 2011 highway map of Saskatchewan indicates that 914 terminates at a checkpoint at Key Lake mine, while the road that continues to McArthur is not a public highway (owned by Cameco) and does not appear on maps.
During the most hazardous mining operations, remote controlled underground mining systems in this mine [9] [10] are used to reduce personnel exposure to rock particulates, radon gas, and other hazards. [11] A video detailing the operations at the mine is provided by Cameco. [12]
The McArthur River mine has been awarded the Canadian Institute of Mining, Metallurgy and Petroleum's John T. Ryan Trophy for the best safety record for metal mines several times. This award is given to the metal mine with the best safety record for the previous year.
Cameco Corporation is the world's largest publicly traded uranium company, based in Saskatoon, Saskatchewan, Canada. In 2015, it was the world's second largest uranium producer, accounting for 18% of world production.
The Athabasca Basin is a region in the Canadian Shield of northern Saskatchewan and Alberta, Canada. It is best known as the world's leading source of high-grade uranium and currently supplies about 20% of the world's uranium.
Uranium mining is the process of extraction of uranium ore from the ground. Over 50 thousand tons of uranium were produced in 2019. Kazakhstan, Canada, and Australia were the top three uranium producers, respectively, and together account for 68% of world production. Other countries producing more than 1,000 tons per year included Namibia, Niger, Russia, Uzbekistan, the United States, and China. Nearly all of the world's mined uranium is used to power nuclear power plants. Historically uranium was also used in applications such as uranium glass or ferrouranium but those applications have declined due to the radioactivity of uranium and are nowadays mostly supplied with a plentiful cheap supply of depleted uranium which is also used in uranium ammunition. In addition to being cheaper, depleted uranium is also less radioactive due to a lower content of short-lived 234
U and 235
U than natural uranium.
The Key Lake mine is a former uranium mine in Saskatchewan, Canada. It is 570 kilometres (350 mi) north of Saskatoon by air on the southern rim of the uranium-rich Athabasca Basin. Key Lake was initially developed to open-pit mine two nearby uranium ore deposits: the Gaertner deposit and the Deilmann deposit. Mining of this ore ceased in the late 1990s; the Key Lake mill now processes uranium ore from the McArthur River mine and from existing stockpiles on site. High-grade ore from McArthur river is blended with lower grade local rock before being passed through the mill. The mill has a permitted annual production capacity of 25 million pounds of U3O8. In addition, ammonium sulfate fertilizer is produced as a byproduct from used reagents. The pits of the mined out local deposits are being used as mill tailings management facilities.
Rabbit Lake is the second largest uranium milling facility in the western world, and is the longest-operating uranium production facility in Saskatchewan. The facility is located approximately 800 km north of Saskatoon, Saskatchewan, on the northeast edge of the uranium rich Athabasca Basin. The closest community is Wollaston Lake, about 40 kilometers by lake or air. Rabbit Lake was the first Canadian mine to offer a seven-days-in/seven-days-out commuter system of staffing. Access is provided by Highway 905. Production at Rabbit Lake was suspended in April 2016.
Uranium mining in the United States produced 224,331 pounds (101.8 tonnes) of U3O8 in 2023, 15% of the 2018 production of 1,447,945 pounds (656.8 tonnes) of U3O8. The 2023 production represents 0.4% of the uranium fuel requirements of the US's nuclear power reactors for the year. Production came from five in-situ leaching plants, four in Wyoming (Nichols Ranch ISR Project, Lance Project, Lost Creek Project, and Smith Ranch-Highland Operation) and one in Nebraska (Crowe Butte Operation); and from the White Mesa conventional mill in Utah.
Uranium mining in Wyoming was formerly a much larger industry than it is today. Wyoming once had many operating uranium mines, and still has the largest known uranium ore reserves of any state in the U.S. At the end of 2008, the state had estimated reserves dependent on price: 539 million pounds of uranium oxide at $50 per pound, and 1,227 million pounds at $100 per pound.
Uranium ore deposits are economically recoverable concentrations of uranium within Earth's crust. Uranium is one of the most common elements in Earth's crust, being 40 times more common than silver and 500 times more common than gold. It can be found almost everywhere in rock, soil, rivers, and oceans. The challenge for commercial uranium extraction is to find those areas where the concentrations are adequate to form an economically viable deposit. The primary use for uranium obtained from mining is in fuel for nuclear reactors.
The Cigar Lake Mine is a large high-grade underground uranium mine, located in the uranium-rich Athabasca Basin of northern Saskatchewan, Canada, at the south-west corner of Waterbury Lake. The deposit, discovered in 1981, is second in size of high-grade deposits only to the nearby McArthur River mine. Other deposits, such as Olympic Dam in Australia, contain more uranium but at lower grades.
Crow Butte is a uranium mining operation located four miles (6 km) southeast of the city of Crawford in Dawes County, Nebraska, United States. Cameco Corporation owns and operates Crow Butte through its wholly owned subsidiary, Crow Butte Resources, Inc.
Smith Ranch and Highland are uranium mining operations located in Wyoming, U.S.A. They are separate permits, operated as a single operation, and have one central processing facility. The Smith Ranch-Highland operation is the largest uranium production facility in the United States.
The Pronto Mine is an historical uranium mine located approximately 20 km south of Elliot Lake, Ontario near Spragge. The site is owned and operated by Rio Algom Ltd, has been rehabilitated and is currently undergoing environmental monitoring.
Canada is the world's second-largest producer of uranium, behind Kazakhstan. In 2009, 20% of the world's primary uranium production came from mines in Canada. 14.5% of the world production came from one mine, McArthur River. Currently, the only producing area in Canada is northern Saskatchewan, although other areas have had active mines in the past.
Nuclear industry in Canada is an active business and research sector, producing about 15% of its electricity in nuclear power plants of domestic design. Canada is the world's largest exporter of uranium, and has the world's second largest proven reserves. Canada also exports nuclear technology within the terms of the Nuclear Non-proliferation Treaty, to which it is a signatory, and is the world's largest producer of radioactive medical isotopes.
Orano Canada is a uranium mining, milling, and exploration company headquartered in Saskatoon, Saskatchewan, Canada. Orano is a subsidiary of the Orano Group, an international nuclear energy company headquartered in Paris, France with 16,000 employees worldwide.
Hathor Exploration Limited is a uranium exploration company based in Vancouver, British Columbia, Canada. Its exploration office is located in Saskatoon, Saskatchewan, Canada. Hathor's exploration projects concentrate on properties within the Athabasca Basin of Northern Saskatchewan, Canada.
The Yeelirrie uranium project is a uranium deposit located approximately 70 km southwest of Wiluna, in the Mid West region of Western Australia. The name Yeelirrie is taken from the local sheep station.
The world's largest producer of uranium is Kazakhstan, which in 2019 produced 43% of the world's mining output. Canada was the next largest producer with a 13% share, followed by Australia with 12%. Uranium has been mined in every continent except Antarctica.
The North Antelope Rochelle Mine is the largest coal mine in the world. Located in Campbell County, Wyoming, about 65 miles (105 km) south of Gillette, it produced 85.3 million tons of coal in 2019.