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Considerations on the kinetics of froth flotation of ultrafine coal contained in tailings
(Taylor & Francis Inc, 2009)
This article presents a kinetic evaluation of froth flotation of ultrafine coal contained in the tailings from a Colombian coal preparation plant. The plant utilizes a dense-medium cyclones and spirals circuit. The tailings ...
Froth flotation of coal tailings
(ESCOLA DE MINAS, 2009)
The processes involved in coal preparation produce harmful effects for the environment, mainly by the quantity and nature Of wastes that are generated, These tailings generally called ""pyritic"", even though not presenting ...
Co-firing of blends of sugarcane bagasse and coal: Thermal and kinetic behaviors
(2018-05-01)
The interaction effects between sugarcane bagasse and a Brazilian coal during co-firing were investigated by means of thermal decomposition behavior, comparison between theoretical and experimental results, activation ...
Using biomonitors to evaluate soil and air pollution by natural radionuclides in thermal power plant and coal mining areas
(2017-01-01)
Coal-fired power plants and coal mining are sources of soil and air pollution by radionuclides, as fossil fuels may contain natural levels of toxic and radioactive elements. For the evaluation of air and soil pollution by ...
Oxidative chemical beneficiation of low-quality coals under low-energy ultrasonic and microwave irradiation: an environmental-friendly approach
(Corporación Universidad de la Costa, 2021)
Natural radionuclides in lichens, mosses and ferns in a thermal power plant and in an adjacent coal mine area in southern Brazil
(2017-02-01)
The radio-elements 234U, 235U, 238U, 230Th, 232Th and 210Po were characterized in lichens, mosses and ferns species sampled in an adjacent coal mine area at Figueira City, Paraná State, Brazil, due to their importance for ...
Petrography and geochemistry of exported colombian coals: Implications from correlation and regression analyses
(Beijing: Elsevier B.V. on behalf of KeAi Communications Co. LtdChina, 2022)