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Coltan mining and ethics Wikipedia, the free encyclopedia. Due to niobium and tantalum the Chinese coltan refining Currently there is one process for verifying the origin of a coltan sample. This process, »More detailed. 4.7/5(2.4K) coltan mining flow chart YouTube. Nov 18, 2018· Coltan Refining Process Ore Beneficiation Plant,Ore . coltan ...[...]

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Coltan is mined through a fairly primitive process similar to how gold was mined in California during the 1800s.Coltan mining is very well paid in Congo terms. The average Congolese worker makes $10 a month, while a coltan miner can make anywhere from $10 to $50 a week.[...]

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TIC Processing: extraction and refining . The extraction and refining of tantalum, including the separation from niobium in these various tantalumcontaining mineral concentrates, is generally accomplished by treating the ores with a mixture of hydrofluoric and sulfuric acids at …[...]

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The TIC has created a process to deliver conflict-free coltan from Africa to refinery sites, called ITSCI, by using independent third-party companies to assess the mining sites and determine whether or not they violate of human rights and through working with RMI to audit them smelters and refiners that purchase material. See also[...]

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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 …[...]

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