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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] |
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 resea ... [...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 in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Agadez Region
Agadez Region is one of the seven regions of Niger. At , it covers more than half of Niger's land area, and is the largest region in the country, as well as the largest African state subdivision. The capital of the department is Agadez. History The region is a centre for palaeontology, with numerous dinosaur skeletons being found here, including the ''Ouranosaurus nigeriensis''. Cave painting and the remains of ancient human settlements are also located here. Tuareg peoples began migrating to the region from the mid-8th century. From the mid-15th century to the early 20th, much of the region was under the control of the Sultanate of Agadez, except for a period when the area came under the rule of the Songhai Empire in the 1500s. The region suffered with the advent of French colonialism as power shifted away to the southwest; Tuareg disaffection with French rule resulted in the Kaocen revolt in 1916–17. This process continued following Niger's independence in 1960; local Tu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Niger
) , official_languages = , languages_type = National languagesRépublique du Niger, "Loi n° 2001-037 du 31 décembre 2001 fixant les modalités de promotion et de développement des langues nationales." L'aménagement linguistique dans le monde (accessed 21 September 2016) , languages = , religion_ref = , religion_year = 2012 , religion = , demonym = Nigerien , capital = , coordinates ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Uranium
Uranium is a chemical element with the symbol U and atomic number 92. It is a silvery-grey metal in the actinide series of the periodic table. A uranium atom has 92 protons and 92 electrons, of which 6 are valence electrons. Uranium is weakly radioactive because all isotopes of uranium are unstable; the half-lives of its naturally occurring isotopes range between 159,200 years and 4.5 billion years. The most common isotopes in natural uranium are uranium-238 (which has 146 neutrons and accounts for over 99% of uranium on Earth) and uranium-235 (which has 143 neutrons). Uranium has the highest atomic weight of the primordially occurring elements. Its density is about 70% higher than that of lead, and slightly lower than that of gold or tungsten. It occurs naturally in low concentrations of a few parts per million in soil, rock and water, and is commercially extracted from uranium-bearing minerals such as uraninite. In nature, uranium is found as uranium-238 (99. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Uranium
Uranium is a chemical element with the symbol U and atomic number 92. It is a silvery-grey metal in the actinide series of the periodic table. A uranium atom has 92 protons and 92 electrons, of which 6 are valence electrons. Uranium is weakly radioactive because all isotopes of uranium are unstable; the half-lives of its naturally occurring isotopes range between 159,200 years and 4.5 billion years. The most common isotopes in natural uranium are uranium-238 (which has 146 neutrons and accounts for over 99% of uranium on Earth) and uranium-235 (which has 143 neutrons). Uranium has the highest atomic weight of the primordially occurring elements. Its density is about 70% higher than that of lead, and slightly lower than that of gold or tungsten. It occurs naturally in low concentrations of a few parts per million in soil, rock and water, and is commercially extracted from uranium-bearing minerals such as uraninite. In nature, uranium is found as uranium-238 (99. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Areva
Areva S.A. is a French multinational group specializing in nuclear power headquartered in Courbevoie, France. Before its 2016 corporate restructuring, Areva was majority-owned by the French state through the French Alternative Energies and Atomic Energy Commission (54.37%), Banque publique d'investissement (3.32%), and Agence des participations de l'État (28.83%). Électricité de France, of which the French government has a majority ownership stake, owned 2.24%; Kuwait Investment Authority owned 4.82% as the second largest shareholder after the French state. As a part of the restructuring program following its insolvency, Areva sold out or discontinued its renewable energy businesses, sold its reactors business subsidiary Areva NP (now: Framatome) to EDF and its nuclear propulsion and research reactors subsidiary Areva TA (now: Technicatome) to Agence des participations de l'État, and separated its nuclear cycle business into a separate company New Areva (later: Orano). As ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Government Of Niger
The government of Niger is the apparatus through which authority functions and is exercised: the governing apparatus of Nigerien state. The current system of governance, since the Constitution of 25 November 2010, is termed the Seventh Republic of Niger. It is a semi-presidential republic, whereby the President of Niger is head of state and the Prime Minister of Niger head of government. The officials holding these posts are chosen through a representative democratic process of national and local elections, in the context of a competing multi-party system. Executive power is exercised by the government. Legislative power is vested in both the government and the National Assembly. The judiciary is independent of the executive and the legislature: its Constitutional Court has jurisdiction over constitutional and electoral matters. National government, has, since 1999, been supplemented by locally elected officials, who in turn choose representatives at the Departmental and Region ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
U3O8
Triuranium octoxide (U3O8) is a compound of uranium. It is present as an olive green to black, odorless solid. It is one of the more popular forms of yellowcake and is shipped between mills and refineries in this form. U3O8 has potential long-term stability in a geologic environment. In the presence of oxygen (O2), uranium dioxide (UO2) is oxidized to U3O8, whereas uranium trioxide (UO3) loses oxygen at temperatures above 500 °C and is reduced to U3O8. The compound can be produced by any one of three primary chemical conversion processes, involving either uranium tetrafluoride (UF4) or uranyl fluoride (UO2F2) as intermediates. It is generally considered to be the more attractive form for disposal purposes because, under normal environmental conditions, U3O8 is one of the most kinetically and thermodynamically stable forms of uranium. Its particle density is 8.3 g cm−3. Triuranium octoxide is converted to uranium hexafluoride for the purpose of uranium enrichment. Solid ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
