• Your Phone Coltan and the Business Case for Innovative

    Daphné Joseph-Gabriel wrote "Your Phone Coltan and the Business Case for Some international processes—like those initiated by the United Nations (UN) .. Paradigm of Credible Business Alternatives and Refined Product Life Cycles

    Service Online
  • Guns Money and Cell Phones — Global Issues

    Sep 27 2003 Refine coltan and you get a highly heat-resistant metal powder called After all the trading companies sell coltan to processing companies

    Service Online
  • Digging for rare earths The mines where iPhones are born - CNET

    Sep 26 2012 But the biggest hazard is an artificial "tailings" lake west of the city where refineries that process the rare-earth minerals dump their waste.

    Service Online
  • Tantalum-Niobium International Study Center

    Around 90 member companies from 25 countries involved with all aspects of the tantalum and niobium industry supply chain (mining trading processing metal

    Service Online
  • Where Apple Gets the Tantalum for Your iPhone - Newsweek

    Feb 4 2015 Refined into coltan at smelters in countries such as China Kazakhstan Apple said that of the 219 smelters it uses globally to process gold tin

    Service Online
  • Coltan Tungsten Tin .verite

    Where are coltan tungsten and tin produced with forced labor at their mining site for short periods of time -- a process known as "solango" (Pöyhönen et al. After the mineral ore is refined into metal it becomes impossible to distinguish tin

    Service Online
  • Coltan Cell Phones and Conflict The War Economy of the DRC

    Dec 2 2008 Coltan is refined into tantalum powder to make heat-resistant in the trade of conflict coltan from eastern DRC—much as the Kimberly Process

    Service Online
  • A SOLVENT REFINED COAL PROCESS FOR "CLEAN" UTILITY FUEL

    The solvent-refining of coal a non-catalytic process under development by the the solvent refining process though allows the coal supply to be used

    Service Online
  • Coltan-The Mining Process The Weave

    Oct 14 2012 Coltan is a dull metallic ore found in large quantities in the eastern parts of Congo. After a refining process Coltan turns into tantalum which in

    Service Online
  • Columbite-tantalite (COLTAN) > ENGINEERING

    Oct 17 2006 When refined COLTAN becomes metallic Tantalum but what I want to know is What is the procedure to test to see if it is coltan or not

    Service Online
  • Gold Refinery gold refinery process - Kaloti Precious Metals

    wholesale jewellery in Dubai retail jewellery in dubai gold assaying UAE Kaloti Metal provides gold gold refinery silver platinum and other precious metal

    Service Online
  • From Mine to Mobile Phone The Conflict Minerals Supply Chain

    Nov 10 2009 This region eastern Congo has so much of this coltan you just dig on . they have to be refined into metals by metal processing companies.

    Service Online
  • Follow the Things Electrical Gravesend

    This intense manual labour is crosscut with footage from the high-tech mechanised process where the coltan is refined. An animation suddenly interrupts the

    Service Online
  • Blood Coltan Have a Coltan-free Holiday ict4d

    A vast majority (80 ) of the world s coltan is found in the mineral-rich country in process the conflict-mined coltan and the manufactures who use the refined

    Service Online
  • A tantalising prospect The Economist

    Feb 16 2013 The Kroll process starts with titanium oxide which is derived from ores The oxide (which comes from an ore called coltan) is converted to a

    Service Online
  • how is gold refined and processed - BISA

    Oct 14 2012 After a refining process Coltan turns into tantalum which in its metallic The mining process of Coltan is similar to the process which gold was.

    Service Online
  • CVMR® - Complete profile - Canadian Company Capabilities

    CVMR® Chlorination Technology (Coltan refining ) and CVMR Phosphorous Tri Its refining processes are unique to the Company environmentally neutral The CVMR process can produce pellets net shapes coatings powders and

    Service Online
  • Energy Secretary s dirty resumé Earth Island Journal Earth Island

    It was the 54 000 tons of toxic emissions that his company s refineries released into producer of industrial carbon black a byproduct of the oil refinery process. to supply Cabot with coltan which it too purchased from Congo during the war.

    Service Online
  • JXSC MINING - China Gold Machine Gold Trommel Plant Gold

    gold mining gold concentrate refining coltan concentrate refining columbite Gravity mining process especialy the fine particles minerals concentrating such

    Service Online
  • CVMR® Corporation

    Aug 13 2012 Process and the subsequent technologies developed at CVMR for the . Technology CVMR® Chlorination Technology (Coltan refining ).

    Service Online
  • Tracking Conflict Minerals In Congo Inside Science

    Dec 8 2010 Tracking each stage of that process is complicated. or thousands of master samples before the smelting and refining processes remove the chemical information that makes it possible to trace coltan back to its source.

    Service Online
  • Coltan refining plants

    Feb 13 2016 16 Oct 2013 coltan refining process equipment sale coltan refining processing machine . ltan refining plants. mining crusher equipment.

    Service Online
  • Blood on your mobile phone - Capturing the Gains

    briefing note we trace the key actors in the deadly coltan chain at the root of the global telecoms . Three international corporations refine . The audit process .

    Service Online
  • Processing of Non-Ferrous Metals

    Title Processing and properties of nonferrous metals 5.1 Chemical refining processes . Coltan is considered to be a bloody mineral and the reason of.

    Service Online
  • A Review of Niobium-Tantalum Separation in Hydrometallurgy (PDF

    May 23 2016 A detailed review of the various processes involved in the breakdown treatment Columbite tantalite columbite-tantalite (Coltan) .. A. Choudhury E. Hengsberger (1992) Electron Beam Melting and Refining of Metals and.

    Service Online
  • What Is Coltan - ABC News

    When refined coltan becomes metallic tantalum a heat-resistant powder that can Coltan is mined through a fairly primitive process similar to how gold was

    Service Online
  • China Alluvial Coltan Processing Plant Designed for Africa Coltan

    China Alluvial Coltan Processing Plant Designed for Africa Coltan Mining Coltan Refine Equipment Shaking Table Concentrator for Coltan Processing Plant.

    Service Online
  • Coltan Facts - Break The Silence Congo Week

    The Congo possesses 80 percent of the world s coltan. The properties of refined coltan is a vital element in creating devices that store energy or capacitors which are used in a vast array of small electronic Chemical process equipment

    Service Online
  • A Review of Niobium-Tantalum Separation in Hydrometallurgy

    and newer processes of extraction as well as the various technique involved were discussed. Columbite tantalite columbite-tantalite (Coltan) .. A. Choudhury E. Hengsberger (1992) Electron Beam Melting and Refining of Metals and.

    Service Online
  • Guns Money and Cell Phones The Dawn News

    May 27 2016 Refine coltan and you get a highly heat-resistant metal powder called After all the trading companies sell coltan to processing companies

    Service Online
  • Is There Even Such a Thing as Conflict-Free Minerals TakePart

    Sep 4 2015 From the mines coltan ore is transported—in trucks or on porters The refining process mixes ore from the conflict zones of DRC with

    Service Online