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Geology and characterization of the pecket coal deposit, megellan region, chile
(ELSEVIER SCIENCE BV, 2002)
The geology, petrography and chemical variation of the Pecket coal sequence, Magellan Region (52_x0001_57VS, 71_x0001_10VW), the only Chilean coal used for electricity generation on a large scale, has been studied in order ...
Work conditions and morbidity among coal miners in Guachetá, Colombia: The miners' perspective
Introduction: Investigations in Colombia about work and health conditions in coal mining are scarce and few have focused on the perception of the exposed population and their behaviors in response to inherent risks. ...
Natural radionuclides in plants, soils and sediments affected by U-rich coal mining activities in Brazil
(Elsevier B.V., 2017-10-01)
Mining activities can increase the mobility of metals by accelerating the dissolution and leaching of minerals from the rocks and tailing piles to the environment and, consequently, their availability for plants and ...
Natural radionuclides in plants, soils and sediments affected by U-rich coal mining activities in Brazil
(2017-10-01)
Mining activities can increase the mobility of metals by accelerating the dissolution and leaching of minerals from the rocks and tailing piles to the environment and, consequently, their availability for plants and ...
Blendas de carvão vegetal e carvão mineral para a produção de briquetes
(Universidade Federal de São CarlosUFSCarPrograma de Pós-Graduação em Ciência dos Materiais - PPGCM-SoCâmpus Sorocaba, 2014-05-25)
Brazil produces about 37 million cubic meters of charcoal per year whit an increasing due to the gradual coal replacement, once the coal mined in Brazil does not have adequate levels of carbon for some purposes, such as ...
Occupational airborne contamination in south Brazil: 1. Oxidative stress detected in the blood of coal miners
(SPRINGER, 2009)
Reactive oxygen species and nitrogen species have been implicated in the pathogenesis of coal dust-induced toxicity. The present study investigated several oxidative stress biomarkers (Contents of lipoperoxidation = TBARS, ...
Utilização do coque verde de petróleo da Petrobras em substituição parcial ao carvão mineral das misturas injetadas em altos fornos
(2010-04-01)
The Petrobras produced green petroleum coke (GPC) is a carbon rich fuel, virtually ash-free, with low sulfur content, and is a fuel suitable to replace metallurgical coke in blast furnaces. The GPC was tested in a pulverized ...
Utilização do coque verde de petróleo da Petrobras em substituição parcial ao carvão mineral das misturas injetadas em altos fornos
(2010-04-01)
The Petrobras produced green petroleum coke (GPC) is a carbon rich fuel, virtually ash-free, with low sulfur content, and is a fuel suitable to replace metallurgical coke in blast furnaces. The GPC was tested in a pulverized ...
Avaliação da influência do tempo de estocagem em pilhas na qualidade de carvões metalúrgicos
(Universidade Federal de Minas GeraisUFMG, 2008-03-24)
The quality of coal used in the mix for production of coke used in blast furnaces is important for obtainment of a coke within characteristics demanded. Maintain the coke quality without great variations will enable a ...