Gravity Methods Applied to Bauxite Residue for Mineral Pre-concentration

2021 ◽  
pp. 68-76
Author(s):  
Paula de Freitas Marques Araújo ◽  
Patricia Magalhães Pereira Silva ◽  
Andre Luiz Vilaça do Carmo ◽  
Marcus Vinícius Lins Gonçalves ◽  
Raphael Vieira da Costa ◽  
...  
Keyword(s):  
Bauxite Residue

Utilization of Bauxite Residue as a Liner: Permeability Improvement Using Additives

2021 ◽  
Vol 7 (1) ◽  
Author(s):  
Ioannis E. Zevgolis ◽  
Charis Tsiavos ◽  
Konstantinos Papangelis ◽  
George Gaidajis ◽  
Anthimos Xenidis
Keyword(s):  
Bauxite Residue

Biotechnological trends and market impact on the recovery of rare earth elements from bauxite residue (red mud) – A review

2021 ◽  
Vol 171 ◽  
pp. 105645
Author(s):  
Sandeep Panda ◽  
Rachel Biancalana Costa ◽  
Syed Sikandar Shah ◽  
Srabani Mishra ◽  
Denise Bevilaqua ◽  
...  
Keyword(s):  
Rare Earth ◽  
Rare Earth Elements ◽  
Red Mud ◽  
Bauxite Residue ◽  
Market Impact

scholarly journals An Alternative to Clay in Building Materials: Red Mud Sintering Using Fly Ash via Taguchi’s Methodology

2013 ◽  
Vol 2013 ◽  
pp. 1-7 ◽  
Author(s):  
Suchita Rai ◽  
Dilip H. Lataye ◽  
M. J. Chaddha ◽  
R. S. Mishra ◽  
P. Mahendiran ◽  
...  
Keyword(s):  
Fly Ash ◽  
Construction Industry ◽  
Red Mud ◽  
Morphological Analysis ◽  
Building Materials ◽  
Sintering Temperature ◽  
Bauxite Residue ◽  
Significant Parameter ◽  
Alkaline Waste ◽  
Free Caustic Soda

“Red mud” or “bauxite residue” is a highly alkaline waste generated from alumina refinery with a pH of 10.5–12.5 which poses serious environmental problems. Neutralization or its treatment by sintering in presence of additives is one of the methods for overcoming the caustic problem as it fixes nearly all the leachable free caustic soda present in red mud. In the present study, feasibility of reducing the alkaline nature of red mud by sintering using fly ash as an additive via Taguchi methodology and its use for brick production, as an alternative to clay, is investigated. The analysis of variance (ANOVA) shows that sintering temperature is the most significant parameter in the process. A pH of 8.9 was obtained at 25–50% of red mud and 50–75% fly ash with water and temperature of . Alternatively 50% of red mud can be mixed with 50% of fly ash with water at temperature of to get a pH of about 8.4. The mechanism of this process has been explained with also emphasis on chemical, mineralogical, and morphological analysis of the sintered red mud. The results would be extremely useful in utilization of red mud in building and construction industry.

Co-solidification of bauxite residue and coal ash into indurated monolith via ambient geopolymerisation for in situ environmental application

2022 ◽  
Vol 422 ◽  
pp. 126925
Author(s):  
Tuan A.H. Nguyen ◽  
Xingyun Guo ◽  
Fang You ◽  
Narottam Saha ◽  
Songlin Wu ◽  
...  
Keyword(s):  
Bauxite Residue ◽  
Coal Ash ◽  
Environmental Application

Macro-arthropod succession in grassland growing on bauxite residue

2010 ◽  
Vol 36 (12) ◽  
pp. 1666-1671 ◽  
Author(s):  
R. Courtney ◽  
N. O’Neill ◽  
T. Harrington ◽  
J. Breen
Keyword(s):  
Bauxite Residue

Bauxite residue as a catalyst for microwave-assisted pyrolysis of switchgrass to high quality bio-oil and biochar

2021 ◽  
pp. 131294
Author(s):  
Badr A. Mohamed ◽  
Xiaotao Bi ◽  
Loretta Y. Li ◽  
Lijian Leng ◽  
El-Sayed Salama ◽  
...  
Keyword(s):  
Bauxite Residue ◽  
High Quality ◽  
Microwave Assisted ◽  
Bio Oil
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