Chemistry of Seawater Neutralization of Bauxite Refinery Residues (Red Mud)

Hanahan, C.; McConchie, David; Pohl, John H.; Creelman, Robert A.; Clark, Malcolm W.; Stocksiek, Curt

doi:10.1089/109287504773087309

Cited by 143 publications

(106 citation statements)

References 17 publications

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“…Chvedov . et al, 2001;Hanahan et al, 2004;Palmert et al, 2007). Red mud varies in physical, chemical and mineralogical properties due to differing ore sources and refining processes employed and for this reason also this waste material must be deeply characterized before its use for environmental application.…”

Section: Red Mudsmentioning

confidence: 99%

“…They consist mostly of hematite and goethite together with boehmite, calcium oxides, titanium oxides www.intechopen.com and alluminosilicate minerals (e.g. Hanahan et al, 2004;Santona et al, 2006). The chemical analysis generally reveals the presence of Si, Al, Fe, Ca, Ti as well as an array of minor constituents such as Na, K, Cr, Ni, Mn, Cu, Zn and Pb ( e.g.…”

Section: Red Mudsmentioning

confidence: 99%

See 1 more Smart Citation

Multi-Technique Application for Waste Material Detection and Soil Remediation Strategies: The Red Mud Dust and Fly Ash Case Studies

Belviso¹,

Pascucci²,

Cavalcante³

et al. 2011

Soil Contamination

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Section: Red Mudsmentioning

confidence: 99%

Section: Red Mudsmentioning

confidence: 99%

Multi-Technique Application for Waste Material Detection and Soil Remediation Strategies: The Red Mud Dust and Fly Ash Case Studies

Belviso¹,

Pascucci²,

Cavalcante³

et al. 2011

Soil Contamination

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“…Ad hoc PEO coatings can be achieved in one step, modifying the composition of the electrolytes [90,91] and process parameters [92]. A two-step process is achieved by a suitable post-treatment [93][94][95]. Those treatments have to increase the corrosion resistance of PEO, due to the porous structure.…”

Section: Anti-corrosionmentioning

confidence: 99%

Layered Double Hydroxides: Tailoring Interlamellar Nanospace for a Vast Field of Applications

Richetta¹,

Medaglia²,

Mattoccia³

et al. 2017

J Material Sci Eng

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Fifty-eight years ago Fenman, during an American Physical Society meeting at the California Institute of Technology, anticipated the problem of modifying and governing the world of the infinitely small. what is possible in principle… We are not doing it simply because we haven't yet gotten around to it." Useless to say how profound his sensibility for science was. We've just begun to walk in this enormous field, toward the assembly of devices atom by atom. What we did till now is still rudimentary. Anyhow we believe that Layered Double Hydroxides could play a role in manufacturing these nanometric equipments.Layered Double Hydroxides (LDHs) are 2D ionic lamellar nano-materials belonging to the group of anionic clays. Their structure consists of positively charged brucite-like layers and intercalated anions. The layered structure, together with the flexibility to intercept different anionic species in variable compositions, both inorganic and organic, has attracted increasing interest. In order to meet specific requirements in very distant fields, considerable efforts were made to tailor the physical/chemical properties of LDHs and to design engineered LDH for several applications, ranging from anticorrosion coatings, flame-retardants, catalysis, to water treatment/purification, and biomedical applications. Furthermore they have been applied in energy harvesting and conversion, thanks to the possibility of substituting the composing metals with transition metals.Within the framework of this contribution, we first briefly review the development of synthesis processes ( §1). In Paragraph 2, examples of the LDHs applications are reported. We will than focus on our laboratory experimental activities, showing the growth of the structures either on printed circuit tracks for applications of LDHs as gas sensors and biosensors. One more application is in nanostructured-modified textiles.

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“…Takođe duže vreme propuštanja CO 2 kroz suspenziju crvenog mulja doprinosi značajni-jem sniženju pH vrednosti. Pored navedenih neutralizacionih agenasa, za neutralizaciju mulja se uspešno mogu primetniti i morska voda [26,27] i kisele rudničke vode [28]. Crveni muljevi neutralisani kiselinama imaju nižu EC, u poređenju sa muljevima tretiranim na druge načine.…”

Section: Ph Vrednostunclassified

The effect of chemical and mineralogical composition of red mud on alkalinity parameters

Smiljanić¹,

Ostojic²,

Vasiljević³

2017

Zas Mat

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UVODZbog raznovrsnih mogućnosti upotrebe aluminijuma, njegova proizvodnja se i dalje uvećava. Glinica, odnosno bezvodni aluminijum trioksid Al 2 O 3 , predstavlja glavni perkursor za dobijanje aluminijuma. Za proizvodnju glinice uglavnom se koriste boksitne rude. Danas postoji nekoliko postupaka za proizvodnju glinice iz boksita, od kojih najširu primenu u industrijskoj proizvodnji zauzima Bayerov postupak [1,2]. Ostatak luženja, nakon prerade boksita, uobičajeno se naziva crveni mulj (eng. "red mud") ili boksitni ostatak (eng. "bauxite residue"). Crveni mulj je visokoalkalna tiksotropna suspenzija tamno crvene boje. Hemijska i fizička svojstva crvenog mulja zavise od svojstava boksita i uticaja Bayer-ovog procesa na njega [3]. Procenjuje se da je u 2016. godini, produkcija crvenog mulja premašila 120 miliona tona, i da je ukupna količina deponovanog mulja na globalnom nivou dostigla količinu od 3 milijarde tona [3,4]. Kako potražnja za glinicom u svetu raste, to se može očekivati i porast produkcije crvenog mulja.

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Chemistry of Seawater Neutralization of Bauxite Refinery Residues (Red Mud)

Cited by 143 publications

References 17 publications

Multi-Technique Application for Waste Material Detection and Soil Remediation Strategies: The Red Mud Dust and Fly Ash Case Studies

Multi-Technique Application for Waste Material Detection and Soil Remediation Strategies: The Red Mud Dust and Fly Ash Case Studies

Layered Double Hydroxides: Tailoring Interlamellar Nanospace for a Vast Field of Applications

The effect of chemical and mineralogical composition of red mud on alkalinity parameters

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