|Operator||Vale Mina do Azul S.A.|
Manganese - 2.065 Mt in 2011
|Deposit Type||Sedimentary manganese deposit|
|Reserves & Resources||
Manganese - 45.4 Mt @ 40.5% proven, and 8.3 Mt at 39.5% probable (Dec 31, 2011)
|Mining Method||Open pit|
|Processing Method||Primary crushing, Escrubagem, Secondary crushing, Screening, Hydraulic Classification|
|Mine Life||To 2022|
|Mining Equipment||Truck & shovel|
|Processing equipment||Crusher, Screeners|
Estrada Raimundo Mascarenhas, s/n, Centro
Last updated: May 4, 2012
The Azul Mine (Mina do Azul), located in the state of ParÃ¡, Brazil was discovered in 1971. It is recognized internationally for the excellent quality of its ore, which contains high concentrations of manganese and a high manganese-iron ratio.
The unit consists of an open pit mine and a processing plant.
Production focuses on metallurgical manganese and manganese dioxide.
The Azul manganese mine is located near the iron ore deposits of Carajas in the Para State of Brazil.
Brazil is the largest country in South America and the world's fifth largest country. The official language is Portuguese and is spoken by over 192 million people.
Para is the second largest state in Brazil. It is located in the northern part of the country. Mining activities (iron ore, bauxite, manganese) account for 14% of the state's GDP.
The state hosts a large part of the Amazonian forest which suffers from illegal logging, agriculture and cattle raising.
Azul is a sedimentary deposit where the supply of manganese is related to the chemical nature of the basin. Thus, iron and base metals were precipitated by an acid medium, leading to a higher concentration of manganese in the water that was precipitated by oxidative processes.
The manganese deposit is developed on Lower Precambrian sedimentary shales (Rio Fresco Group) which had been deeply weathered.
Viable economic reserves were estimated at 30.2 million tons of metallurgic manganese and 5.9 million tons of manganese dioxide.
The principal characteristics of the ore from CarajÃ¡s are: high ratio of Mn/Fe; high content of MnO2; and medium content of P. Deposits were discovered in 1971.
It is an open pit, with banks of four to eight meters, in front of mines.
Its annual production capacity is approximately 1.5 million tons.
The processing of manganese ore from the Mina Azul consists of the: Primary crushing, Escrubagem, Secondary crushing, Screening, Hydraulic Classification.