scholarly journals TECHNOLOGICAL CHARACTERIZATION OF IRON ORE TAILING FROM MINERAÇÃO CONGONHAS BENEFICIATION PLANT, BRAZIL: AN IDENTIFICATION OF OPTIMUM PROCESS ROUTE

2019 ◽  
Vol 16 (Especial) ◽  
Author(s):  
Aline da Luz Pascoal ◽  
Ana Paula Aparecida de Almeida Paulo ◽  
Filipe Mattos Gonçalves ◽  
Júnia Soares Alexandrino ◽  
Hygor Aristides Victor Rossoni
Keyword(s):  
Iron Ore ◽  
Optimum Process ◽  
Beneficiation Plant ◽  
Process Route ◽  
Iron Ore Tailing

scholarly journals Iron Ore Tailings: Characterization and Applications

2021 ◽  
Author(s):  
Ottávio Carmignano ◽  
Sara Vieira ◽  
Ana Paula Teixeira ◽  
Fernando Lameiras ◽  
Paulo Roberto Brandão ◽  
...  
Keyword(s):  
Iron Ore ◽  
Ceramic Industry ◽  
Physicochemical Characterization ◽  
New Materials ◽  
X Ray Diffraction ◽  
X Ray ◽  
Iot Applications ◽  
Iron Ore Tailings ◽  
Iron Ore Tailing

Currently, approximately 1.4 billion tons per year of iron ore tailing wastes (IOT) are generated, mainly in Australia, Brazil, and China. This work describes the characterization and application of two typical IOT, i.e., fine and coarse wastes. The physicochemical characterization of these IOT by different techniques such as XRF (X-ray fluorescence), XRD (X-ray diffraction), Mössbauer spectroscopy, and granulometry, indicates for the fine tailing a composition of Fe2O3/FeOOH (10-55%), SiO2 (18-65%) and Al2O3 (up to 15%) with particles of 6-40 μm, whereas the coarse tailing presents 40-150 μm particles with the composition of 8-48% Fe2O3/FeOOH, 30-90% SiO2 and Al2O3 (up to 20%). The main IOT applications discussed in this review are related to civil construction (aggregates for concrete, mortar, Portland cement additives), ceramic industry, geopolymer, synthesis of new materials such as zeolites, mesoporous silica, carbon nanotubes, adsorbents, catalysts for different reactions, in batteries and in fuel cells. It was also carried out an analysis of patents related to IOT applications and the main technological and market barriers that hinder the industrial and commercial uses of these wastes.

Physical, chemical and microbiological characterization of the soils contaminated by iron ore tailing mud after Fundão Dam disaster in Brazil

2021 ◽  
Vol 158 ◽  
pp. 103811
Author(s):  
Fernanda Resende Couto ◽  
Angela de Mello Ferreira ◽  
Patrícia Procópio Pontes ◽  
Andréa Rodrigues Marques
Keyword(s):  
Iron Ore ◽  
Physical Chemical ◽  
Iron Ore Tailing

Study on the feasibility of using iron ore tailing (iot) on technological properties of concrete roof tiles

2021 ◽  
Vol 279 ◽  
pp. 122484
Author(s):  
Tony Matheus Carvalho Eugênio ◽  
Jefferson Francisco Fagundes ◽  
Queilla Santos Viana ◽  
Alan Pereira Vilela ◽  
Rafael Farinassi Mendes
Keyword(s):  
Iron Ore ◽  
Technological Properties ◽  
Iron Ore Tailing

Use of iron ore tailing from tailing dam as catalyst in a fenton-like process for methylene blue oxidation in continuous flow mode

Chemosphere ◽  
2019 ◽  
Vol 219 ◽  
pp. 328-334 ◽  
Author(s):  
Victor Augusto Araújo de Freitas ◽  
Samuel Moura Breder ◽  
Flávia Paulucci Cianga Silvas ◽  
Patrícia Radino Rouse ◽  
Luiz Carlos Alves de Oliveira
Keyword(s):  
Methylene Blue ◽  
Continuous Flow ◽  
Iron Ore ◽  
Flow Mode ◽  
Tailing Dam ◽  
Iron Ore Tailing

Iron Ore Tailing as Addition to Partial Replacement of Portland Cement

2018 ◽  
Vol 930 ◽  
pp. 125-130 ◽  
Author(s):  
Luciano Fernandes de Magalhães ◽  
Isabella de Souza Morais ◽  
Luis Felipe dos Santos Lara ◽  
Domingos Sávio de Resende ◽  
Raquel Maria Rocha Oliveira Menezes ◽  
...  
Keyword(s):  
Portland Cement ◽  
Iron Ore ◽  
Mineral Exploration ◽  
Planetary Mill ◽  
Open Pit ◽  
Partial Replacement ◽  
Compression Tests ◽  
X Ray Diffraction ◽  
Open Pit Mines ◽  
Iron Ore Tailing

The manufacture of Portland cement used in the production of concrete emits large amounts of CO2into the atmosphere, contributing to the increase of the greenhouse effect. The environmental impact generated by the mineral exploration activity is a problem of easy verification, especially in open pit mines. The present work evaluated the possibility of using iron ore tailing as an addition to the partial replacement of the cement in mortars. The iron ore tailings were processed by drying in oven (48h at 105oC) and milling in a planetary mill (10min at 300RPM), obtaining medium grain size of 14,13 μm. For the characterization, laser granulometry, X-ray diffraction (XRD), scanning electron microscopy (SEM) and differential thermal and thermogravimetric analysis (DTA / TGA) were performed. The sample is composed predominantly by quartz, hematite, goethite and gibbsite. After the characterization, the waste was used in the preparation of test specimens, with 10, 20 and 30% weight substitution of the cement. The composites were submitted to compression tests, with ages of 3, 7 and 28 days, using a strength rate of 0,25MPa/s. The mortars with 10, 20 and 30% of substitution presented resistance of 41.65, 36.26 and 31.64 MPa, being able to be characterized as category of Portland cement of resistance 40, 32 and 25 respectively. Considering the reduction of cement in the mortars produced, the results of compressive strength were relevant for the substitutions. The cements produced with the substitutions according to the Brazilian standards under the mechanical aspect can be classified as Portland cement.

scholarly journals Review of operations iron ore beneficiation plant.

FLOTATION ◽  
1984 ◽  
Vol 31 (1) ◽  
pp. 32-45 ◽  
Author(s):  
Andrew W. Grubb
Keyword(s):  
Iron Ore ◽  
Beneficiation Plant
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