Results 31 to 40 of about 7,334 (224)
Metals, 2023 This study investigates the properties of H2-reduced calcium-added bauxite residue, self-hardened pellets, and the feasibility of iron recovery through electrostatic and magnetic separation methods.
Ahmad Hassanzadeh +3 more
doaj +1 more source
Influence of free silica in the production of synthetic aggregates from bauxite residue
Cerâmica, 2023 The residue from the Bayer process has physicochemical characteristics that allow its use in the production of synthetic aggregate, although some characteristics such as low plasticity and water absorption still need better control.
M. B. de Vilhena +3 more
doaj +1 more source
Formation, properties and revegetation prospects for bauxite processing residue and the effects of seawater neutralization [PDF]
, 2017 Partial neutralisation of bauxite residue (by treatment with seawater) prior to its deposition in land-based lagoons or impoundments minimises the need to treat the alkaline, sodic drainage both during operation of the alumina refinery and following its ...
Haynes, Richard J., Li, Yaying
core +1 more source
Rare Earths and the Balance Problem: How to Deal with Changing Markets? [PDF]
, 2018 The balance between the market demand and the natural abundance of the rare-earth elements (REEs) in ores, often referred to as the Balance Problem (or the Balancing Problem), is a major issue for REE suppliers.
Binnemans, Koen +3 more
core +2 more sources
Comparison of advanced hydraulic properties between treated and untreated bauxite residue [PDF]
E3S Web of Conferences, 2020 Advanced hydraulic characteristics of treated and untreated Bauxite Residue (Red Mud) are studied and compared using a Steady-State Centrifugation (SSC) Unsaturated Flow Apparatus (UFA).
Machado Joao A. R. +3 more
doaj +1 more source
Advances in Understanding Environmental Risks of Red Mud After the Ajka Spill, Hungary [PDF]
, 2016 In the 5 years since the 2010 Ajka red mud spill (Hungary), there have been 46 scientific studies assessing the key risks and impacts associated with the largest single release of bauxite-processing residue (red mud) to the environment.
A Anton +43 more
core +3 more sources
Bauxite Residue Sinter Phase Transformations
Proceedings of 5th International Slag Valorisation Symposium (5th ISVS 2017), 2017 We acknowledge the funding by Rio Tinto and from European Community's Horizon 2020 Programme ([H2020/2014–2019]) under Grant Agreement no. 636876 (MSCAETN REDMUD, http://www.etn.redmud.org), as well as Aluminium of Greece for the support of this project.
Hodge, Harrison +3 more
openaire +1 more source
Radiological assessment of the bauxite residue valorization chain [PDF]
Journal of Radioanalytical and Nuclear Chemistry, 2019 The behavior of radionuclides in the bauxite residue valorization chain has been analyzed, and accumulation ratios have been measured for secondary residues produced after recovery of valuable metals. Key analysis outcomes are valid specifically for the processes and raw materials in use at the Aluminium of Greece plant and are as follows: the ...
Andrei Goronovski, Alan H. Tkaczyk
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Romanian Journal of Ecology & Environmental Chemistry, 2022 This paper is describing a careful study on content and distribution of rare elements in the fluid and solid phases involved in dry and classified aluminum hydroxide production through Bayer process at Alum SA, Tulcea, Romania.
Lidia Kim +7 more
doaj +1 more source
Microbially-driven strategies for bioremediation of bauxite residue [PDF]
Journal of Hazardous Materials, 2015 Globally, 3 Gt of bauxite residue is currently in storage, with an additional 120 Mt generated every year. Bauxite residue is an alkaline, saline, sodic, massive, and fine grained material with little organic carbon or plant nutrients. To date, remediation of bauxite residue has focused on the use of chemical and physical amendments to address high pH,
Santini, Talitha C. +2 more
openaire +3 more sources