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In 2019, Brazil's figures were as follows: it was the world's largest producer of niobium (88.9 thousand tons); [2] the 2nd largest world producer of tantalum (430 tons); [3] the 2nd largest world producer of iron ore (405 million tons); [4] the 4th largest world producer of manganese (1.74 million tons); [5] the 4th largest world producer of bauxite (34 million tons); [6] the 4th largest ...
The Boa Vista mine is an open pit niobium and phosphate mine located near the city of Catalão in Goiás state in Brazil. Geologically, it is located on the Catalão II carbonatite complex. [2] [3] The mine was opened by Anglo American plc, and had an output of 4,700 tons of niobium in 2014. [4]
Companhia Brasileira de Metalurgia e Mineração (Portuguese for Brazilian Metallurgy and Mining Company), or CBMM for short, is a Brazilian company that specializes in the processing and technology of niobium, extracted from its pyrochlore mine near the city of Araxá, in the Brazilian state of Minas Gerais.
The Brazilian government confirmed on Monday it was in talks on a potential $18 billion payout from a trio of miners involved in a deadly 2015 dam collapse, saying the deal could also involve ...
Brazilian rescuers continued searching on Saturday for some 200 missing people after a tailings dam burst at an iron ore mine owned by Vale SA.
The involvement of Indigenous people in illegal gold hunting, lured by the prospect of easy money due to record prices, has made Brazil's task of cracking down on wildcat mining in the Amazon far ...
It was not until the early 20th century that niobium was first used commercially. Niobium is an important addition to high-strength low-alloy steels. Brazil is the leading producer of niobium and ferroniobium, an alloy of 60–70% niobium with iron. Niobium is used mostly in alloys, the largest part in special steel such as that used in gas ...
The niobium-dominant mineral in coltan is columbite (after niobium's original American name columbium), and the tantalum-dominant mineral is tantalite. [ 1 ] Tantalum from coltan is used to manufacture tantalum capacitors which are used for mobile phones, personal computers, automotive electronics, and cameras. [ 2 ]