Selective flocculation applied to Barsuan iron ore tailings

1985 ◽  
Vol 14 (1) ◽  
pp. 67-75 ◽  
Author(s):  
K. Hanumantha Rao ◽  
K.S. Narasimhan
Keyword(s):  
Iron Ore ◽  
Selective Flocculation ◽  
Iron Ore Tailings

Investigation of the mechanism for selective flocculation process using natural iron ore tailings

2020 ◽  
Vol 117 (1) ◽  
pp. 102
Author(s):  
Lopamudra Panda ◽  
Surendra Kumar Biswal ◽  
Rayasam Venugopal ◽  
Narayan R. Mandre
Keyword(s):  
Ultrafine Particles ◽  
Iron Ore ◽  
Gangue Mineral ◽  
Ftir Analysis ◽  
Selective Flocculation ◽  
Iron Ore Tailings ◽  
Natural Iron ◽  
The Government ◽  
Zeta Potential Analysis ◽  
Flocculation Process

A huge quantity of iron ore tailings was generated every year from the iron ore washing plants during beneficiation. These discarded tailings were stored in the tailing pond. Safe storage and handling of these tailings are a major concern to the management. Due to depletion of high-grade ore, the government of India had reduced the cut-off grade from 55 to 45% because of the shortage of the iron ore reserves. Ultrafine particles present in the tailings cannot be treated effectively by the conventional methods due to particle size limitations. For Indian iron ore, associated gangue mineral alumina is the major source which causes problems in the blast furnace. Removal of alumina from the iron ore of ultrafine size is a hill task. A selective flocculation approach was employed to the iron ore tailings which contain 50.98% of Fe (T) with 8.86% of Al2O3 assay. It was observed that, when applying a selective flocculation process, the concentrate contains more than 63.48% Fe (%), 2.5% Al2O3 with 31.196% recovery (%). The mechanism was investigated using zeta potential analysis, FTIR analysis, etc.

Effects of reductant type on coal-based direct reduction of iron ore tailings

2018 ◽  
Vol 42 (3) ◽  
pp. 453-466
Author(s):  
Wei WANG ◽  
Pengfei YE ◽  
Xiaoli ZHOU ◽  
C WANG ◽  
Zekun HUO ◽  
...  
Keyword(s):  
Iron Ore ◽  
Direct Reduction ◽  
Iron Ore Tailings ◽  
Reduction Of Iron ◽  
Direct Reduction Of Iron

Iron ore tailings as a source of nutrients to the coastal zone

2021 ◽  
Vol 171 ◽  
pp. 112725
Author(s):  
Eduardo Schettini Costa ◽  
Renata Caiado Cagnin ◽  
Cesar Alexandro da Silva ◽  
Cybelle Menolli Longhini ◽  
Fabian Sá ◽  
...  
Keyword(s):  
Coastal Zone ◽  
Iron Ore ◽  
Iron Ore Tailings

On the effects of iron ore tailings micro/nanoparticles in embryonic and larval zebrafish (Danio rerio)

2021 ◽  
Vol 759 ◽  
pp. 143456
Author(s):  
Vítor Otacílio de Almeida ◽  
Talita Carneiro Brandão Pereira ◽  
Lilian de Souza Teodoro ◽  
Manuella Escobar ◽  
Carolina Junqueira Ordovás ◽  
...  
Keyword(s):  
Danio Rerio ◽  
Iron Ore ◽  
Larval Zebrafish ◽  
Iron Ore Tailings

Productivity and food safety of grain crops and forage species grown in iron ore tailings

2021 ◽  
pp. 104198
Author(s):  
Humberto Araújo Almeida ◽  
Janaína Guernica Silva ◽  
Isabela Goulart Custódio ◽  
Decio Karam ◽  
Queila Souza Garcia
Keyword(s):  
Food Safety ◽  
Iron Ore ◽  
Grain Crops ◽  
Iron Ore Tailings ◽  
Forage Species

scholarly journals Iron ore tailings in the production of cement tiles: a value analysis on building sustainability

2018 ◽  
Vol 18 (4) ◽  
pp. 395-412 ◽  
Author(s):  
Wanna Carvalho Fontes ◽  
Giovanni Gonçalves Fontes ◽  
Ellen Cristine Pinto Costa ◽  
Julia Castro Mendes ◽  
Guilherme Jorge Brigolini Silva ◽  
...  
Keyword(s):  
Iron Ore ◽  
Construction Material ◽  
Local Identity ◽  
Value Analysis ◽  
Social And Emotional ◽  
A Value ◽  
Iron Ore Tailings ◽  
Dissolution Tests ◽  
Technical Evaluation ◽  
The Relationship

Abstract The present work discloses the development of a sustainable cement tile (SCT) produced with Iron Ore Tailings from tailings dams (IOT). Initially, technical evaluation and environmental analysis of IOT were performed through physical, chemical and morphological characterisation, leaching and dissolution tests. Its feasibility as a pigment was also investigated. Subsequently, the value analysis was performed, starting from an empathy map to a study on environmental, social and emotional values in the relationship between people and product. As result, the IOT presented fine, crystalline particles, no toxicity, and is technically feasible to be employed as filler, aggregate and pigment in the production of SCT. The colour layer of the SCT presented more homogeneous colour and less pores than conventional ones. Therefore, the design of the SCT was developed, incorporating intangible values such as: environmental ideology, local identity and social expression. In this sense, the present work seeks to assist in the decision-making process involving IOT as construction material.

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