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Biraco
Biraco is the acronym of Bismuth, Radium, and Cobalt. It was the name of a now-defunct subsidiary company of Union Minière du Haut Katanga (UMHK) and Société Générale de Belgique created to refine these elements from the copper and uranium ores coming from the Katanga province in the Democratic Republic of Congo. Radium was first industrially produced in the beginning of the 20th century by Biraco in its Olen plant near Antwerp in Belgium. UMHK offered to Marie Curie her first gramme of radium. The radium production plant was demolished during the years 1970 and the radium production wastes confined in a shallowly buried vault. The Olen site is still the object of remediation works financed by Umicore in the frame of its historical liability. Union Minière activities were merged with those of three other companies to create Umicore in 1989. See also * Radium * Bismuth * Cobalt * Société Générale de Belgique * Union Minière du Haut Katanga * Umicore Umicore N. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Radium
Radium is a chemical element with the symbol Ra and atomic number 88. It is the sixth element in group 2 of the periodic table, also known as the alkaline earth metals. Pure radium is silvery-white, but it readily reacts with nitrogen (rather than oxygen) upon exposure to air, forming a black surface layer of radium nitride (Ra3N2). All isotopes of radium are radioactive, the most stable isotope being radium-226 with a half-life of 1600 years. When radium decays, it emits ionizing radiation as a by-product, which can excite fluorescent chemicals and cause radioluminescence. Radium, in the form of radium chloride, was discovered by Marie and Pierre Curie in 1898 from ore mined at Jáchymov. They extracted the radium compound from uraninite and published the discovery at the French Academy of Sciences five days later. Radium was isolated in its metallic state by Marie Curie and André-Louis Debierne through the electrolysis of radium chloride in 1911. In nature, radium is found ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Acronym
An acronym is a word or name formed from the initial components of a longer name or phrase. Acronyms are usually formed from the initial letters of words, as in ''NATO'' (''North Atlantic Treaty Organization''), but sometimes use syllables, as in ''Benelux'' (short for ''Belgium, the Netherlands, and Luxembourg''). They can also be a mixture, as in ''radar'' (''Radio Detection And Ranging''). Acronyms can be pronounced as words, like ''NASA'' and ''UNESCO''; as individual letters, like ''FBI'', ''TNT'', and ''ATM''; or as both letters and words, like '' JPEG'' (pronounced ') and ''IUPAC''. Some are not universally pronounced one way or the other and it depends on the speaker's preference or the context in which it is being used, such as '' SQL'' (either "sequel" or "ess-cue-el"). The broader sense of ''acronym''—the meaning of which includes terms pronounced as letters—is sometimes criticized, but it is the term's original meaning and is in common use. Dictionary and st ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Olen, Belgium
Olen () is a municipality located in the Belgian province of Antwerp. The municipality comprises three towns, situated on a south–north axis: *South of the motorway E313 and the Albert Canal is Olen proper, also called Olen-Centrum (Saint-Martins parish). *Between the Albert Canal and Olen-station (railroad from Antwerp to Neerpelt and Hasselt) is the town of Boekel, also called Onze-Lieve-Vrouw-Olen (parish) or Achter-Olen (Behind-Olen). *North of the railroad is the town of St.-Jozef-Olen (parish), also called Olen-Fabriek (Olen-Factory, a refinery along the old canal Herentals-Bocholt that was at its origin). In 2021, Olen had a total population of 12,600. The total area is 23.10 km². History of Uranium mining In the 1920s and 1930s the Union Minière du Haut Katanga company, operating in the then Belgian colony of Congo, had a virtual monopoly of the world uranium market (holding most of the deposits known at the time). The uranium mined in Congo was mostly transport ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Defunct Companies Of Belgium
{{Disambiguation ...
Defunct (no longer in use or active) may refer to: * ''Defunct'' (video game), 2014 * Zombie process or defunct process, in Unix-like operating systems See also * * :Former entities * End-of-life product * Obsolescence Obsolescence is the state of being which occurs when an object, service, or practice is no longer maintained or required even though it may still be in good working order. It usually happens when something that is more efficient or less risky r ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Legal Liability
In law, liable means "responsible or answerable in law; legally obligated". Legal liability concerns both civil law and criminal law and can arise from various areas of law, such as contracts, torts, taxes, or fines given by government agencies. The claimant is the one who seeks to establish, or prove, liability. Theories of liability Claimants can prove liability through a myriad of different theories, known as theories of liability. Which theories of liability are available in a given case depends on nature of the law in question. For example, in case involving a contractual dispute, one available theory of liability is breach of contract; or in the tort context, negligence, negligence per se, respondeat superior, vicarious liability, strict liability, or intentional conduct are all valid theories of liability. Each theory of liability has certain conditions, or elements, that must be proven by the claimant before liability will be established. For example, the theory of n ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Umicore
Umicore N.V.. formerly '' Union Minière'', is a multinational materials technology company headquartered in Brussels, Belgium. Formed in 1989 by the merger of four companies in the mining and smelting industries, Umicore has since reshaped itself into a more technology-focused business encompassing such areas as the refining and recycling of precious metals and the manufacture of specialised products from precious metals, cobalt, germanium, zinc, and other metals. The company has been a component of Belgium's benchmark BEL20 stock market index since its 1991 inception. To symbolise this trend of moving away from mining and the production of commodities and base metals, the group Union Minière changed its name to Umicore in 2001. History Colonial origins The main thread running through much of Umicore's history is the ''Union Minière du Haut-Katanga'' (UMHK), a company incorporated in 1906 to exploit the vast natural resources of the Congo Free State, later the Belg ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Marie Curie
Marie Salomea Skłodowska–Curie ( , , ; born Maria Salomea Skłodowska, ; 7 November 1867 – 4 July 1934) was a Polish and naturalized-French physicist and chemist who conducted pioneering research on radioactivity. She was the first woman to win a Nobel Prize, the first person and the only woman to win a Nobel Prize twice, and the only person to win a Nobel Prize in two scientific fields. Her husband, Pierre Curie, was a co-winner of her first Nobel Prize, making them the first-ever married couple to win the Nobel Prize and launching the Curie family legacy of five Nobel Prizes. She was, in 1906, the first woman to become a professor at the University of Paris. She was born in Warsaw, in what was then the Kingdom of Poland, part of the Russian Empire. She studied at Warsaw's clandestine Flying University and began her practical scientific training in Warsaw. In 1891, aged 24, she followed her elder sister Bronisława to study in Paris, where she earned her highe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Antwerp
Antwerp (; nl, Antwerpen ; french: Anvers ; es, Amberes) is the largest city in Belgium by area at and the capital of Antwerp Province in the Flemish Region. With a population of 520,504,Statistics Belgium; ''Loop van de bevolking per gemeente'' (Excel file) Population of all municipalities in Belgium, . Retrieved 1 November 2017. it is the most populous municipality in Belgium, and with a metropolitan population of around 1,200,000 people, it is the second-largest metrop ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Katanga Province
Katanga was one of the four large provinces created in the Belgian Congo in 1914. It was one of the eleven provinces of the Democratic Republic of the Congo between 1966 and 2015, when it was split into the Tanganyika Province, Tanganyika, Haut-Lomami, Lualaba Province, Lualaba, and Haut-Katanga provinces. Between 1971 and 1997 (during the rule of Mobutu Sese Seko when Congo was known as Zaire), its official name was Shaba Province. Katanga's area encompassed . Farming and ranching are carried out on the Katanga Plateau. The eastern part of the province is considered to be a rich mining region, which supplies cobalt, copper, tin, radium, uranium, and diamonds. The region's former capital, Lubumbashi, is the second-largest city in the Congo. History Copper mining in Katanga dates back over 1,000 years, and mines in the region were producing standard-sized ingots of copper for international transport by the end of the 10th century CE. In the 1890s, the province was beleaguered ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Democratic Republic Of Congo
The Democratic Republic of the Congo (french: République démocratique du Congo (RDC), colloquially "La RDC" ), informally Congo-Kinshasa, DR Congo, the DRC, the DROC, or the Congo, and formerly and also colloquially Zaire, is a country in Central Africa. It is bordered to the northwest by the Republic of the Congo, to the north by the Central African Republic, to the northeast by South Sudan, to the east by Uganda, Rwanda, and Burundi, and by Tanzania (across Lake Tanganyika), to the south and southeast by Zambia, to the southwest by Angola, and to the west by the South Atlantic Ocean and the Cabinda exclave of Angola. By area, it is the second-largest country in Africa and the 11th-largest in the world. With a population of around 108 million, the Democratic Republic of the Congo is the most populous officially Francophone country in the world. The national capital and largest city is Kinshasa, which is also the nation's economic center. Centered on the Congo Ba ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bismuth
Bismuth is a chemical element with the Symbol (chemistry), symbol Bi and atomic number 83. It is a post-transition metal and one of the pnictogens, with chemical properties resembling its lighter group 15 siblings arsenic and antimony. Elemental bismuth occurs naturally, and its sulfide and oxide forms are important commercial ores. The free element is 86% as dense as lead. It is a brittle metal with a silvery-white color when freshly produced. Passivation (chemistry), Surface oxidation generally gives samples of the metal a somewhat rosy cast. Further oxidation under heat can give bismuth a vividly Iridescence, iridescent appearance due to thin-film interference. Bismuth is both the most Diamagnetism, diamagnetic element and one of the least Thermal conductivity, thermally conductive metals known. Bismuth was long considered the element with the highest atomic mass whose nuclei do not spontaneously decay. However, in 2003 it was discovered to be extremely weakly radioactive. The ... [...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] |
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