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COMINAK
COMINAK (Compagnie minière d'Akokan) is a national uranium mining company of Niger. It is a joint venture between the French company Areva NC and the state of Niger, which operates in the field of mining. COMINAK was established in 1974, following a memorandum of understanding between France, Japan and Niger. They commenced uranium production in 1978, and reached a record production in 1981 with 2,260 tons of uranium. COMINAK's plant is installed in Akokan, not far from the town of Arlit. COMINAK is one of two national mining companies in Niger, the other being SOMAIR in the nearby Akokan. The U3O8 ore grade at Somaïr is 14,000 tons at 0.3%, Cominak is 29,000 t at 0.4% and Imouraren 120,000t at 0.15%. History The earliest reported exploration for uranium started in 1956 was initially by the French Atomic Energy Commission (CEA) which was continued by COGEMA. This was followed by extraction of the mines at Akouta and Akola by COMINAK. In 1970, France-Japan-Niger rese ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Akokan, Niger
Akokan is a mining town in the Arlit Department of the Agadez Region of northern-central Niger. It is located about southwest of Arlit in the Sahara Desert, and roughly north of Agadez. It is considered to be Niger's "second uranium town". SOMAIR and COMINAK (Compagnie minière d'Akokan), run by Areva and the Nigerien state, operate uranium mines in the vicinity of the towns of Akokan and Arlit. In the maps of the area, Akokan is classified under "Mine - Agadez-Niger". The Tuareg and Toubou people are local to the area. History The Akokan deposit was initially prospected by a France-Japan-Niger tripartite affiliation in the early 1970s. In 1975, underground mining at Akokan was estimated to require over $100 million in investment. Today over 100,000 people live in Akokan and Arlit. Greenpeace has expressed concerns over the high radiation levels found on the streets of Akokan. Afasto, south of Akokan, was the site of newly discovered uranium reserves in 2001. The operational ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cogema
Orano Cycle, formerly COGEMA (''Compagnie générale des matières nucléaires'') and Areva NC, is a French nuclear company. It is the main subsidiary of Orano S.A. It is an industrial group active in all stages of the uranium fuel cycle, including uranium mining, conversion, enrichment, spent fuel reprocessing, and recycling. The company was originally created in 1976. In 2001, it became part of Areva; its name was changed to ''Areva NC'' in March 2006. As a result of restructuring of Areva, Areva NC became part of Orano and changed its name to Orano Cycle. History In 1976, ''Compagnie générale des mines'' was created based on the uranium production activities of ''Commissariat à l'énergie atomique'' (CEA). Later it was renamed ''Compagnie Générale des Matières Nucléaire'' (COGEMA). As of 1999, COGEMA was majority owned by CEA (81.5%) with minority owned by Total S.A. (15%) and Technip (3.5%). It also owned stakes in Framatome and Eramet. In June 2001, Cogema beca ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Areva NC
Orano Cycle, formerly COGEMA (''Compagnie générale des matières nucléaires'') and Areva NC, is a French nuclear company. It is the main subsidiary of Orano S.A. It is an industrial group active in all stages of the uranium fuel cycle, including uranium mining, conversion, enrichment, spent fuel reprocessing, and recycling. The company was originally created in 1976. In 2001, it became part of Areva; its name was changed to ''Areva NC'' in March 2006. As a result of restructuring of Areva, Areva NC became part of Orano and changed its name to Orano Cycle. History In 1976, ''Compagnie générale des mines'' was created based on the uranium production activities of ''Commissariat à l'énergie atomique'' (CEA). Later it was renamed ''Compagnie Générale des Matières Nucléaire'' (COGEMA). As of 1999, COGEMA was majority owned by CEA (81.5%) with minority owned by Total S.A. (15%) and Technip (3.5%). It also owned stakes in Framatome and Eramet. In June 2001, Cogema bec ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
SOMAIR
SOMAIR (Société des Mines de l'Air) is a national mining company of Niger in the mining area of its northern zone. Established in 1968, it started uranium mining at the Arlit deposit in 1971, mining 0.30 - 0.35% ore down to depth of depth. By 1981, the company was producing 2100 tU/yr and by 2006 it was producing 1565 tU at the Tamou deposit. The production peaked to 3065 tU in 2012. The resources, according to the Red Book, are assessed at 23,170 tU, as of 2010, at 42,200 tU of 0.25%U grade recoverable conventionally, and 5500 tU of 0.07%U grade from heap leaching. SOMAIR is one of two national mining companies in Niger, the other being COMINAK in the nearby Akokan. Geography Arlit and Akokan are the twin mining towns of SOMAIR. They are situated on the southern border of the Sahara desert, where uranium is extracted, and are on the western fringe of the Aïr Mountains. They are located to the north-east of Niamey, the capital of Niger. History Discovery of uranium ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arlit
Arlit is an industrial town and capital of the Arlit Department of the Agadez Region of northern-central Niger, built between the Sahara Desert and the eastern edge of the Aïr Mountains. It is 200 km south by road from the border with Algeria. As of 2011, the commune had a total population of 112,432 people. Uranium industry Founded in 1969 following the discovery of uranium, it has grown around the mining industry, developed by the French government. Two large uranium mines, at Arlit and nearby Akouta, are exploited by open top strip mining. One open pit mine was built in 1971 by the National Mining Company of Niger, SOMAIR. The Second open pit mine, as well as a third underground mine, was built by the French Compagnie Minière d'Akouta (or COMINAK). All the ore from both is now processed and transported by a French company Orano Cycle, a holding of the Orano group, itself a state owned operation of the French ''Commissariat à l'énergie atomique'' (CEA). The ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Imouraren
The Imouraren mine is a large mine located in the northern part of Niger in Agadez Region. Imouraren represents one of the largest uranium reserves in Niger having estimated reserves of 109.1 million tonnes of ore grading 0.06% uranium. It is the site of a uranium mining project involving French company Areva and SOPaMin (Société du Patrimoine des Mines du Niger on behalf of the government of Niger). The U3O8 ore grade at nearby SOMAIR is 14,000 tons at 0.3%, COMINAK COMINAK (Compagnie minière d'Akokan) is a national uranium mining company of Niger. It is a joint venture between the French company Areva NC and the state of Niger, which operates in the field of mining. COMINAK was established in 1974, followin ... is 29,000 t at 0.4% and Imouraren 120,000t at 0.15%. References {{DEFAULTSORT:Imouraren Mine Uranium mines in Niger ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Uranium Mining In Canada
For many years, North America was the largest exporter of uranium ore in the world and has been a major world producer since demand for uranium developed. In 2009 Kazakhstan took over top spot, relegating Canada to second. 20% of the world's primary uranium production came from mines in Canada in 2009. 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. History Discovery of uranium Canada's first recorded discovery of uranium came in the 1930s 3 when prospector Gilbert LaBine discovered pitchblende, a major uranium bearing mineral, on the shores of the Great Bear Lake in the Northwest Territories. This discovery led Labine's company, Eldorado Gold Mines Limited, to develop the Eldorado Mine at Port Radium, Northwest Territories in 1932 and a refinery to extract Radium from the ore in Port Hope, Ontario, the following year. Post ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
OHSAS 18001
OHSAS 18001, Occupational Health and Safety Assessment Series, was an international standard for occupational health and safety management systems that was subsequently adopted as a British Standard. Compliance with it enabled organizations to demonstrate that they had a system in place for occupational health and safety. BSI cancelled OHSAS 18001 to adopt ISO 45001. ISO 45001 was published in March 2018 by the International Organization for Standardization. Organizations that are certified to OHSAS 18001 were able to migrate to ISO 45001 by March 2021 to retain a recognized certification. Origins Organizations worldwide recognize the need to control and improve health and safety performance and do so with occupational health and safety management systems (OHSMS). However, before 1999 there was an increase of national standards and proprietary certification schemes to choose from. This caused confusion and fragmentation in the market and undermined the credibility of individual sc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stoping
Stoping is the process of extracting the desired ore or other mineral from an underground mine, leaving behind an open space known as a stope. Stoping is used when the country rock is sufficiently strong not to collapse into the stope, although in most cases artificial support is also provided. The earliest forms of stoping were conducted with hand tools or by fire-setting; later gunpowder was introduced. From the 19th century onward, various other explosives, power-tools, and machines came into use. As mining progresses the stope is often backfilled with tailings, or when needed for strength, a mixture of tailings and cement. In old mines, stopes frequently collapse at a later time, leaving craters at the surface. They are an unexpected danger when records of underground mining have been lost with the passage of time. Stoping is considered "productive work", and is contrasted with "deadwork", the work required merely to access the mineral deposit, such as sinking shafts and win ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Feldspar
Feldspars are a group of rock-forming aluminium tectosilicate minerals, also containing other cations such as sodium, calcium, potassium, or barium. The most common members of the feldspar group are the ''plagioclase'' (sodium-calcium) feldspars and the ''alkali'' (potassium-sodium) feldspars. Feldspars make up about 60% of the Earth's crust, and 41% of the Earth's continental crust by weight. Feldspars crystalize from magma as both intrusive and extrusive igneous rocks and are also present in many types of metamorphic rock. Rock formed almost entirely of calcic plagioclase feldspar is known as anorthosite. Feldspars are also found in many types of sedimentary rocks. Compositions The feldspar group of minerals consists of tectosilicates, silicate minerals in which silicon ions are linked by shared oxygen ions to form a three-dimensional network. Compositions of major elements in common feldspars can be expressed in terms of three endmembers: * potassium feldspar (K- ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sandstone
Sandstone is a clastic sedimentary rock composed mainly of sand-sized (0.0625 to 2 mm) silicate grains. Sandstones comprise about 20–25% of all sedimentary rocks. Most sandstone is composed of quartz or feldspar (both silicates) because they are the most resistant minerals to weathering processes at the Earth's surface. Like uncemented sand, sandstone may be any color due to impurities within the minerals, but the most common colors are tan, brown, yellow, red, grey, pink, white, and black. Since sandstone beds often form highly visible cliffs and other topographic features, certain colors of sandstone have been strongly identified with certain regions. Rock formations that are primarily composed of sandstone usually allow the percolation of water and other fluids and are porous enough to store large quantities, making them valuable aquifers and petroleum reservoirs. Quartz-bearing sandstone can be changed into quartzite through metamorphism, usually relate ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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