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Re-using bauxite residues: benefits beyond (critical raw) material recovery

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Show simple item record Ujaczki, Éva Feigl, Viktória Molnár, Mónika Cusack, Patricia B. Curtin, Teresa Courtney, Ronan O'Donoghue, Lisa M.T. Davris, Panagiotis Hugi, Christoph Evangelou, Michael W.H. Balomenos, Efthymios Lenzh, Markus 2018-07-10T13:33:32Z 2018-07-10T13:33:32Z 2018
dc.description peer-reviewed en_US
dc.description.abstract Since theworld economy has been confronted with an increasing risk of supply shortages of critical rawmaterials (CRMs), there has been a major interest in identifying alternative secondary sources of CRMs. Bauxite residues from alumina production are available at a multi-million tonnes scale worldwide. So far, attempts have been made to find alternative re-use applications for bauxite residues, for instance in cement / pig iron production.However, bauxite residues also constitute an untapped secondary source of CRMs. Depending on their geological origin and processing protocol, bauxite residues can contain considerable amounts of valuable elements. The obvious primary consideration for CRM recovery from such residues is the economic value of the materials contained. However, there are further benefits from re-use of bauxite residues in general, and from CRM recovery in particular. These go beyond monetary values (e.g. reduced investment / operational costs resulting from savings in disposal). For instance, benefits for the environment and health can be achieved by abatement of tailing storage as well as by reduction of emissions from conventional primary mining. Whereas certain tools (e.g. life-cycle analysis) can be used to quantify the latter, other benefits (in particular sustained social and technological development) are harder to quantify. This review evaluates strategies of bauxite residue re-use / recycling and identifies associated benefits beyond elemental recovery. Furthermore, methodologies to translate risks and benefits into quantifiable data are discussed. Ultimately, such quantitative data are aprerequisite for facilitatingdecision-makingregardingbauxite residue re-use / recycling anda stepping stone towards developing a zero-waste alumina production process. en_US
dc.language.iso eng en_US
dc.publisher Wiley and Sons Ltd en_US
dc.relation 730105 en_US
dc.relation.ispartofseries Journal of Chemical Technology and Biotechnology; 93 (9), pp. 2498-2510
dc.subject hydrometallurgy en_US
dc.subject life-cycle assessment (LCA) en_US
dc.subject metals en_US
dc.subject recovery en_US
dc.subject sustainable processing en_US
dc.subject waste treatment and waste minimization en_US
dc.title Re-using bauxite residues: benefits beyond (critical raw) material recovery en_US
dc.type info:eu-repo/semantics/article en_US
dc.type.supercollection all_ul_research en_US
dc.type.supercollection ul_published_reviewed en_US
dc.identifier.doi 10.1002/jctb.5687
dc.contributor.sponsor ERC en_US
dc.contributor.sponsor Swiss State Secretariat for Education, Research and Innovation en_US
dc.relation.projectid Sciex-NMSch 11.044 en_US
dc.relation.projectid 730105 en_US
dc.relation.projectid 16.0155 en_US
dc.rights.accessrights info:eu-repo/semantics/openAccess en_US

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