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  • Coltan mining and ethics Wikipedia

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  • Coltan Wikipedia

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  • Coltan chemeurope

    Coltan is the colloquial African name for columbite-tantalite, a metallic ore used to produce the elements niobium and tantalum. Mineral concentrates containing tantalum are usually referred to as 'tantalite' [1]. In appearance, coltan is a dull black mineral. The exportation of coltan helped fuel the war in the Congo, a conflict that has resulted in approximately 3.8 million deaths [2]. Coltan is the ore for tantalum used

  • Kids.Net.Au Encyclopedia > Coltan

    Coltan ( columbite-tantalite [?]) is a black tar-like sand used to produce tantalum mostly for use in capacitors, used in a vast array of small electronic devices, especially in mobile phones, laptop computers [?], pagers, and the like. Much of the world's supply of coltan comes from the Democratic Republic of the Congo.

  • Coltan Wikipedia

    Coltan (short for columbite–tantalites and known industrially as tantalite) is a dull black metallic ore from which are extracted the elements niobium and tantalum.The niobium-dominant mineral in coltan is columbite (after niobium's original American name columbium), and the tantalum-dominant mineral is the tantalite.. Tantalum from coltan is used to manufacture tantalum capacitors which are

  • Coltan Wikipedia, the free encyclopedia

    Coltan is the colloquial African name for columbite-tantalite, a metallic ore from which are extracted the elements niobium and tantalum.Mineral concentrates containing tantalum are usually referred to as tantalite. Niobium was called "columbium" some decades ago, hence the "col" half of the term. [1] In appearance, coltan is a dull black mineral.

  • Coltan | columbite-tantalite mineral ore | Britannica

    Other articles where Coltan is discussed: endangered species: Human beings and endangered species:from the unregulated exploitation of coltan (the rare ore for tantalum used in consumer electronics products such as mobile phones and computers) in Kahuzi-Beiga National Park, one of the Democratic Republic of the Congo’s premier forest parks. The park is also home to much of the population

  • 10 Facts about Coltan | Fact File

    13/02/2016· It has been cited that the presence of Coltan mining was used to finance the conflict. Coltan Pictures. Facts about Coltan 3: the environmental impact. The lakes and rivers in Congo were polluted because of the Coltan mining activity in the country was not controlled. Thus, the ecology received the negative impact. Facts about Coltan 4: the population of Eastern Mountain Gorilla. The

  • What is Coltan? 5 Facts You Should Know | Mining, Uses

    Coltan mining has also caused significant destruction of gorilla habitats in the DRC. As the UN Environment Program has reported, “The number of eastern lowland gorillas in eight DRC national

  • It’S Where Tantalum and Niobium Come fromColtan, or columbite-tantalite, is an ore from which niobium and tantalum are extracted. As a report from the US Geological Survey notes, the miner...Coltan Provides The Tantalum Used in SmartphonesAbout two-thirds of tantalum is used to construct electronic capacitors, a fundamental component of cell phones and other electronics. Tantalum has...It’S Harmful For GorillasColtan mining has also caused significant destruction of gorilla habitats in the DRC. As Cellular News notes, “the U.N. Environment Program has rep...
  • coltan mining encyclopedia whipped-cakes

    Mining Equipment Faq Coltan. ColtanWikipedia the free encyclopedia. Coltan mining is viewed by miners as a way of providing for themselves in an area where war and internal conflict are widespread and the government has no concern for citizens welfare. coltan ore mining equipment India Crushers. coltan grinding mining black stone . Service Online

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  • Coltan — Wikipedia Republished // WIKI 2

    From Wikipedia, the free encyclopedia. A piece of columbite-tantalite, size 6.0 × 2.5 × 2.1 cm. Coltan (short for columbite–tantalites and known industrially as tantalite) is a dull black metallic ore, from which the elements niobium and tantalum are extracted. The niobium-dominant mineral in coltan is columbite (after niobium's original American name columbium), and the tantalum

  • Coltan mining and ethics — Wikipedia Republished //

    Coltan mining and ethics. From Wikipedia, the free encyclopedia. Coltan is a metallic ore from which the very similar elements niobium, also known as columbium, and tantalum are extracted. Coltan mining specifically in the Democratic Republic of Congo has been associated with human rights violations. YouTube Encyclopedic . 1 / 1. Views: 476

  • Kids.Net.Au Encyclopedia > Coltan

    Encyclopedia > Coltan Article Content Coltan. Owing to the difficulty of distinguishing legitimate from illegitimate mining operations, several electronics manufacturers have decided to forgo central African coltan altogether, relying on other sources in Australia. All three countries named by the United Nations as smugglers of coltan have denied their involvement. UN Coltan

  • Definition of coltan | PCMag

    A major source of income for the Democratic Republic of the Congo (DRC), the country is considered to have the world's largest coltan reserves. Coltan mining revenue financed wars in the 1970s and

  • Coltan – Wikipedia, the free encyclopedia | worldwright

    18/10/2010· From Wikipedia, the free encyclopedia Jump to: navigation, search Coltan is the industrial name for columbite–tantalite, a dull black metallic ore from which the elements niobium (formerly "columbium") and tantalum are extracted. The niobium-dominant mineral is columbite, hence the "col" half of the term. The mineral concentrates dominated by tantalum are referred

  • Col tan | Article about Col tan by The Free Dictionary

    A major source of income for the Democratic Republic of the Congo (DRC), the country is considered to have the world's largest coltan reserves. Coltan mining revenue financed wars in the 1970s and 1990s.

  • Coltan | Article about coltan by The Free Dictionary

    Encyclopedia; Tools. A; A; A; A; Language: Mobile Apps: apple; android; For surfers: Free toolbar & extensions; Word of the Day; Help; For webmasters: Free content; Linking; Lookup box; Close. coltan Also found in: Dictionary, Thesaurus, Wikipedia. coltan (COLumbite-TANtalite) A metallic ore that is critical in electronics manufacturing. A black-brown substance, niobium is

  • Chinese Refineries For Coltan

    coltan mining encyclopedia whipped-cakes. chinese refineries for coltan. Mar 14 2017 In the refinery process coltan is indian coal cutter price Tantalum Wikipedia the free encyclopedia Tantalum is a chemical although important for the local economy in Congo the contribution of coltan mining in Congo to The first refinery has enough soil refinery

  • Columbite | mineral Encyclopedia Britannica

    Columbite, hard, black (often iridescent), heavy oxide mineral of iron, manganese, and niobium, (Fe, Mn)Nb 2 O 6. Tantalum atoms replace niobium atoms in the crystal structure to form the mineral tantalite, which is similar but much more dense.These minerals are the most abundant and widespread of the naturally occurring niobates and tantalates and are important ores, their

  • Gold Mining Wikipedia The Free Encyclopedia

    Gold Mining Process In South Africa 2013-12-9 · Gold mining Wikipedia, the free encyclopedia. Gold mining is the process of mining of gold or gold ores from the ground. There are several techniques and processes by which gold may be extracted from the earth. Chat Online & Get Price. Mobile gold processing plant for sale in South Africa -

  • Coltan – Wikipedia, the free encyclopedia | worldwright

    18/10/2010· From Wikipedia, the free encyclopedia Jump to: navigation, search Coltan is the industrial name for columbite–tantalite, a dull black metallic ore from which the elements niobium (formerly "columbium") and tantalum are extracted. The niobium-dominant mineral is columbite, hence the "col" half of the term. The mineral concentrates dominated by tantalum are referred to as tantalite.[1]

  • Coltan Mining Affects the Piaroa | Peaceful Societies

    12/10/2017· Coltan mining, a scourge in the Northeastern D.R.Congo that has affected the Mbuti people, has more recently been dividing and threatening the Piaroa of Venezuela. A lengthy news story published last week by a group called the Organized Crime and Corruption Reporting Project (OCCRP) discussed the recent history of coltan in Venezuela and its effects on the Piaroa and another nearby

  • Coltan From Wikipedia, the free- Iris-Mining استخراج

    Coltan From Wikipedia, the free encyclopedia. A piece of columbite-tantalite, size 6.0 x 2.5 x 2.1 cm Coltan (short for columbite–tantalite and known industrially as tantalite) is a dull black metallic ore from which the elements niobium and tantalum are extracted. The niobium-dominant mineral in coltan is columbite (after niobium's original American name, columbium), and the tantalum

  • coltan mining in nasarawa | Solution for ore mining

    Coltan – Wikipedia, the free encyclopedia A piece of columbite-tantalite, Nasarawa, Kogi, Osun, Ekiti, Kwara Mining industry of Nigeria – Wikipedia, the free encyclopedia. Mines were abandoned by colonial companies, and production never recovered. Columbite and tantalite are collectively known as coltan in Africa. RhodiumLTD :: A Multi-Commodity Resource Co. incorporated in

  • "Coltan Mining Fuels Congo Violence" New

    Coltan Mining Fuels Congo Violence . Read preview. Article excerpt . You may be aware of 'blood diamonds' but those pricey gems are not the only mineral produced where human rights violations are rampant. Your cell phone may also have blood on it. Those tiny miracles of modem communication can't run without coltan, a rare mineral found mainly in countries like the Democratic Republic of Congo

  • coltan : definition of coltan and synonyms of coltan

    Ethics of Coltan mining in the Democratic Republic of Congo. Conflicts, including the Rwandan occupation in the east of the Democratic Republic of Congo (DRC) made it difficult for the DRC to exploit its coltan reserves. Mining of the mineral is mainly artisinal and small-scale [citation needed]. A 2003 UN Security Council report [17] charged that a great deal of the ore is mined illegally and

  • Ore Mining Coltan

    2011-6-3 · coltan Mining and Processing, Technology, Production, Global Trade, Buyers, Sellers and Company Profiles. Coltan is a dull metallic ore found in major quantities in the eastern areas of Congo. When refined, coltan becomes metallic tantalum, a heat-resistant powder that can hold a high electrical charge. It is a vital element in creating

  • coltan refining plants

    Coltan Processing Plant Cost. Jan 2, 2014 sale coltan refining processing machine project cost of setting up mini Stone Quarry Plants » Purchase Gold Process Machine » Coltan mining and ethics Wikipedia, the free encyclopedia. Coltan is a metallic ore from which the very similar elements niobium, also known as .

  • Chinese Refineries For Coltan

    coltan mining encyclopedia whipped-cakes. chinese refineries for coltan. Mar 14 2017 In the refinery process coltan is indian coal cutter price Tantalum Wikipedia the free encyclopedia Tantalum is a chemical although important for the local economy in Congo the contribution of coltan mining in Congo to The first refinery has enough soil refinery alinahealthfoundation The Soil Refinery

  • Gold Mining Wikipedia The Free Encyclopedia

    Gold Mining Process In South Africa 2013-12-9 · Gold mining Wikipedia, the free encyclopedia. Gold mining is the process of mining of gold or gold ores from the ground. There are several techniques and processes by which gold may be extracted from the earth. Chat Online & Get Price. Mobile gold processing plant for sale in South Africa -