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Mostrando ítems 21-30 de 146
Rotas de concentração por flotação para a wollastonita presente nos depósitos do estado de Goiás
(Universidade Federal de Minas GeraisUFMG, 2015-03-19)
The wollastonite (CaSiO3) is an calcium silicate that is used in the pottery industry, agriculture, in the manufactury of high resistence concrete and also to replace asbestos. The concentration wollastonite ore is complex, ...
Evaluación del uso de aceite vegetal reciclado como reactivo colector en la flotación de minerales sulfurados de cobre utilizando agua de mar
(Universidad de Talca (Chile). Facultad de Ingeniería, 2022)
Rota de processo para o underflow da deslamagem de minério de ferro do concentrador da Samarco Mineração
(Universidade Federal de Minas GeraisUFMG, 2006-12-15)
The iron ore reverse cationic flotation process, using etheramine as a collector/frothing and corn starch as a depressor, is very important in all major Brazilian pellet-feed concentration plants. One of the major challenges ...
Minérios fosfáticos ígneos com ganga carbonática : estudos fundamentais
(Universidade Federal de Minas GeraisBrasilENG - DEPARTAMENTO DE ENGENHARIA MINASPrograma de Pós-Graduação em Engenharia Metalúrgica, Materiais e de MinasUFMG, 2022-03-24)
The mineral industry is reinventing itself every day, in line with growing environmental demands to reduce waste and replace inputs by environmentally sustainable alternatives. Phosphorus is a strategic resource for the ...
O uso de óleos apolares na flotação catiônica reversa de um minério de ferro
(Universidade Federal de Minas GeraisUFMG, 2004-08-25)
The main collectors utilized in the reverse cationic flotation of iron ores belong to the amines group, more specifically the etheramines. In addition, depressants (starches), dispersants, pH modulators, etc. are also ...
Nanotubos de carbono em associação com coletores na flotação catiônica reversa de minério de ferro
(Universidade Federal de Minas GeraisBrasilENG - DEPARTAMENTO DE ENGENHARIA METALÚRGICAPrograma de Pós-Graduação em Engenharia Metalúrgica, Materiais e de MinasUFMG, 2019-06-19)
Flotation is a separation method known for more than 100 years. Regarding iron ore, studies on its application were started in the 1930s. Since 1930s research on the direct anionic flotation of iron oxides, reverse anionic ...
Flota??o com amina: a import?ncia da qualidade da ?guaAmine flotation: the importance of the water quality
(Insitituto Federal de Educa??o, Ci?ncia e Tecnologia do Rio Grande do NorteBrasilNatal - CentralIFRN, 2015)
Effect of salinity and overgrinding on the flotation of malachite
(Universidad Michoacana de San Nicolás de Hidalgo, 2019-02)
In the present work, the effects of salinity and overgrinding on the flotation of malachite were investigated. First, malachite flotation behaviors were studied with different collectors, namely, salicylaldoxime, ...
Estudo de novos coletores comerciais para flotação de itabiritos compactos
(Universidade Federal de Minas GeraisBrasilENG - DEPARTAMENTO DE ENGENHARIA MINASCurso de Especialização em Engenharia de Recursos MineraisUFMG, 2022-06-24)
Currently a small range of commercial collectors is available for the use in iron ore flotation at Vale. This input represents a considerable unit cost and is essential for the concentration of low-content itabirites. The ...