Technical Fact Sheet – Tungsten

tungsten/nylon bullets in some military applications (Kennedy and others 2012; USACE 2007). Tungsten may be present in the environment as a result of mining, weathering of rocks, burning of coal and municipal solid waste, land application of fertilizers or industrial applications (ATSDR 2005). In the ambient atmosphere, tungsten compounds


Conflict Minerals | Responsible Minerals | Global Witness ...

The global minerals trade has funded abuses and armed conflict for decades. Minerals that have bankrolled social and environmental harms still end up in our mobile phones, laptops and cars. Businesses must act responsibly by checking their supply chains.


Many Companies Struggle to Comply with Conflict Mineral ...

Many Companies Struggle to Comply with Conflict Mineral Reporting Rules. September 25, 2020 By Cindy Zhou. "The exploitation of the mining and trade of conflict minerals in the eastern DRC [Democratic Republic of the Congo] has contributed to instability, violence, displacement of people, and severe human rights abuses," says the Government ...


Coltan Mining in Congo: What We Should Know – Global ...

The absence of coltan would for example make crucial task such as x-ray and electronic daily communication almost impossible. Columbite-tantalite, coltan for short, is a grey metallic ore found in large quantities in the eastern areas of Congo. After processing and refinery, coltan is converted to tantalum in a metallic state.


Coltan | Earth Sciences Museum | University of Waterloo

Back to Rocks and Minerals Articles Kathy Feick Coltan is short for columbite-tantalite, a dull metallic ore. When refined, coltan becomes a heat resistant powder, metallic tantalum, which has unique properties for storing electrical charge. Coltan occurs in granitic pegmatites, pockets where the deep seated molten rock crystallized last.


North American Tantalum Buyers, Importers & Purchasing ...

Canada Kenya Brazil ... Coltan, tantalite and tantalum ... cm tech is verified by itsci as supplier of tin tungsten and tantalum concentrated to smelter. including with electric arc furnace dust : eafd, the waste from iron smelting process. we collect it from domestic and import from other country. we supply eafd for recycling to be zinc powder ...


Substance Flow Analysis of Tantalum: Tracking the Conflict ...

The conflict minerals are mineral ores of tantalum, tin, tungsten and gold (3TG) - columbite-tantalite (known as coltan in DRC), cassiterite, wolframite and gold - illegally exploited and traded, and financing unstaunched civil conflicts in the Democratic Republic of the Congo (DRC) (US Securities and Exchange Commission, 2012).


Smelter and Refiner List - Apple

of Identified Tin, Tantalum, Tungsten, Gold, Cobalt and Lithium smelters and refiners have completed a Third Party Audit. For more details, as well as the most current status of each Tin, Tungsten, Tantalum, Gold and Cobalt smelter or ... Gold Asahi Refining Canada Ltd. Canada Gold Asahi Refining USA Inc. United States Gold Asaka Riken Co ...


Buy Lead Ore / Copper / Tin / Zinc / Columbite / Tantalite ...

Buy Lead ore / Copper / Tin / Zinc / Columbite / Tantalite / Tungsten / Gold - Tangshan harbor Zinc Industry Co.Ltd is a leading importer of minerals from China.


5 Top Tantalum-mining Countries - Investing News

Much of its tantalum is found in tantalite ore in the Nigerian states of Nasarawa, Kogi, Osun, Ekiti, Kwara and Cross Rivers. 4. Brazil. Brazil is the …


What are conflict minerals?

What are conflict minerals? "Conflict minerals," as defined by the US legislation, currently include the metals tantalum, tin, tungsten and gold, which are the extracts of the minerals cassiterite, columbite-tantalite and wolframite, respectively. Downstream companies …


Intel's Efforts to Achieve a

1 "Conflict minerals", as defined by Securities and Exchange Commission (SEC) rules, is a broad term which means columbite-tantalite (coltan), cassiterite, gold, wolframite, or their derivatives which are limited to tantalum, tin or tungsten, regardless of whether these minerals finance conflict


Tungsten Alloys Supplier | Lanthanated, Thoriated, Carbide ...

Tungsten Alloy, High Density Machinable Tungsten Alloy. Eagle Alloys Corporation (EAC) is a leading global supplier of High Density Machinable Tungsten Alloys (W Alloy) in foil, strip, sheet, plate, wire, pins, rod, bar, blanks, pipe, tubing, fittings, nozzles, crucibles as well as semi-finished and finished parts, custom sizes, and custom grades.


Tantalum Suppliers, Manufacturers, Wholesalers and Traders ...

Canada Chile ... Non-ferrous Mental Materials Such As Tungsten, Molybdenum, Titanium, Tantalum, Niobium, Alloy Products. ... tantalum pentoxide (ta2o5), tantalite / coltan, copper cathodes . Supplier Of Copper Cathode ...


Smelter and Refiner List - Intel

Smelter and Refiner List This list includes the facilities which, to the extent known, processed Tin, Tantalum, Tungsten, Gold, and Cobalt in Intel products as of March 3,


Conflict minerals | For suppliers | Saab

The law requires companies listed on the American Stock Exchange to disclose its use of tin, tantalum, tungsten and gold and also to state whether these minerals originate from the Democratic Republic of the Congo or any of its nine adjoining countries. Columbite-tantalite (Coltan) - refined into tantalum (Ta) Cassiterite - refined into tin (Sn)


Conflict Minerals Policy Statement - Dynamic Source ...

DSM is a corporate entity based in Canada and supports a "Conflict Minerals" free supply chain. ... coltan (tantalum), wolframite (tungsten) or gold (known as "3TG minerals") sourced from the Democratic Republic of Congo or adjoining countries (known as "Covered Countries").


Coltan Tantalum Importers & Coltan Tantalum Buyers

Coltan Tantalum Importers - Instantly Connect with Verified Coltan Tantalum Buyers & Coltan Tantalum Importers from China, Spain, USA at TradeKey Importers Directory.


Coltan, the Congo and your cell phone

2. From coltan to capacitors The more valuable metal in the coltan ore is Tantalum (Ta), with demand having grown at around 5 per cent per annum since 1990. There was a spike in prices during the last phase of the dot com boom, which drew attention to coltan mining in eastern DRC (see Figure 1). Figure 1 14Average year-end prices for Tantalite


5 Top Cobalt-mining Companies - Investing News

1. Glencore (LSE:GLEN) Glencore is the world's largest cobalt-mining company by a long shot, achieving total production of 27,400 tonnes in 2017. According to the Financial Times, the company is ...


African leaders pledge to wipe out trade of conflict ...

The illegitimate mining of minerals such as coltan, tungsten, tin and gold, which are used in electronic devices, is widespread in the region and …


Tungsten | The Canadian Encyclopedia

Canada's largest tungsten deposits are located in the YT, the NWT (where there is a community named for the metal) and NB; smaller deposits are dispersed across the country. Most Canadian production of tungsten contained in ore and concentrate is exported to the US and western Europe. Canadian production of tungsten concentrate accounted for 20 ...


Tungsten Heavy Metal Alloys & ASTM B777 Supplier | Ed ...

Tungsten Heavy Alloys. Ed Fagan Inc. is a leading distributor of high-density Tungsten Heavy Alloys (ASTM B777-15). Heavy Metal Alloys are produced by powder metallurgy techniques. A range between 90% to 97% Tungsten is mixed with nominal amounts of Nickel, Copper or Iron elements and then compressed. The final phase, liquid sintering, results ...


Profiling the world's largest cobalt-producing countries

8. Canada – 3,000 tonnes. Canada's cobalt production declined by almost 15% in 2019 to total 3,000 tonnes. Despite ranking eighth on the list of the biggest cobalt-producing countries, it is home to significant reserves, measured at 230,000 tonnes – indicating potential for further mining activity.


Coltan,Tungsten, & TinCommodity Atlas Research Page …

Coltan, tungsten, and tin are commonly used in electronics such as cell phones and computers. Conflict minerals can be found in products ranging from jewelry to …


Why, after 6 years, the N.W.T. gov't still hasn't sold its ...

The N.W.T. government continues to push ahead with the sale of the tungsten-rich Mactung property, straddling the N.W.T.-Yukon border. The …


Lithium, Tin, Coltan and Tungsten | The MSA Group

The MSA Group has a demonstrated track record of executing Lithium, Tin, Coltan and Tungsten projects: Africa / Global. Regional review of the lithium potential of the pegmatite belts across Africa and ad-hoc consulting to various clients on the prospectivity of various pegmatite belts of deposits and assistance with building a lithium portfolio.


Canada: A Tantalum Producer in the Making? - Investing News

Coltan is often mined by hand by artisanal miners, with rock and sand being panned and filtered until the mineral sinks to the bottom. This process …


Hochwertige Technologiemetallpulver | H.C. Starck Tungsten ...

We are H.C. Starck Tungsten Powders, a company of the Masan High-Tech Materials Group. For over 100 years, we have developed and produced high-quality powders from the refractory metal tungsten and its compounds for our customers. Our product portfolio ranges from tungstates to tungsten carbides in ultrafine to coarse grain sizes.


Tantalum

Tantalum is used in Computers, Cell Phones, and Medical Devices The combination of columbite and tantalite make for the slang term "coltan." In the mining industry it is known as columbite, tantalite, Ta 205, and tantalum.This mineral is a dull, black, metallic like, mineral that is mined in places such as Australia, South America, and Africa. This mineral is also known as coltan, which is ...