Global Red Mud Reduction Potential Through Optimised Technologies and Ore Selection

Abstract

Mineral Resources EngineeringVol. 09, No. 04, pp. 407-420 (2000) No AccessGLOBAL RED MUD REDUCTION POTENTIAL THROUGH OPTIMISED TECHNOLOGIES AND ORE SELECTIONJ. HAUSBERG, U. HAPPEL, F. M. MEYER, M. MISTRY, M. RÖHRLICH, H. KOCH, P. N. MARTENS, J. SCHLIMBACH, G. ROMBACH, and J. KRÜGERJ. HAUSBERGInstitute of Mineralogy and Economic Geology, University of Technology Aachen, D-52056 Aachen, Germany Search for more papers by this author , U. HAPPELInstitute of Mineralogy and Economic Geology, University of Technology Aachen, D-52056 Aachen, Germany Search for more papers by this author , F. M. MEYERInstitute of Mineralogy and Economic Geology, University of Technology Aachen, D-52056 Aachen, Germany Search for more papers by this author , M. MISTRYInstitute of Mining Engineering I, University of Technology Aachen, D-52056 Aachen, Germany Search for more papers by this author , M. RÖHRLICHInstitute of Mining Engineering I, University of Technology Aachen, D-52056 Aachen, Germany Search for more papers by this author , H. KOCHInstitute of Mining Engineering I, University of Technology Aachen, D-52056 Aachen, Germany Search for more papers by this author , P. N. MARTENSInstitute of Mining Engineering I, University of Technology Aachen, D-52056 Aachen, Germany Search for more papers by this author , J. SCHLIMBACHInstitute of Nonferrous Process Metallurgy, University of Technology Aachen, D-52056 Aachen, Germany Search for more papers by this author , G. ROMBACHInstitute of Nonferrous Process Metallurgy, University of Technology Aachen, D-52056 Aachen, Germany Search for more papers by this author , and J. KRÜGERInstitute of Nonferrous Process Metallurgy, University of Technology Aachen, D-52056 Aachen, Germany Search for more papers by this author https://doi.org/10.1142/S0950609800000354Cited by:6 PreviousNext AboutSectionsPDF/EPUB ToolsAdd to favoritesDownload CitationsTrack CitationsRecommend to Library ShareShare onFacebookTwitterLinked InRedditEmail AbstractProduction of aluminium from bauxite comprises a number of steps that can be traced by a materials-flow analysis. The first stage — the Bayer process — involves refining of bauxite, resulting in the production of alumina (Al2O3) and the separation of an insoluble residue from the pregnant solution. On a worldwide scale, this so-called "red mud" accumulates in large amounts and thus represents a major problem, both from an ecological and economical point of view. Depending on the quality of the bauxite and the technical layout of the Bayer process, between 1.1 and 6.2 tons of red mud are generated per 1 ton of alumina produced. According to the materials input into the Bayer Process (i.e. bauxite and chemicals) the resulting red mud comprises a geogenetic and a process related part. This study firstly defines and characterises critical bauxite parameters that influence process conditions during digestion, secondly quantifies these parameters, and thirdly identifies optimisation potentials for a reduction of red mud production. Finally, based on these results, model calculations of geological and technical scenarios are presented that trace the flow of raw materials during the production of alumina from bauxite. FiguresReferencesRelatedDetailsCited By 6Hazardous spent methanol synthesis catalyst waste and ground cooled ferrous slag application to produce sustainable ceramicsVsévolod Mymrin, Reinaldo H. G. Alarcon, Marilia A. Guidolin, Walderson Klitzke and Monica A. Avanci et al.31 March 2022 | The International Journal of Advanced Manufacturing Technology, Vol. 120, No. 7-8A review of the characterization and revegetation of bauxite residues (Red mud)Shengguo Xue, Feng Zhu, Xiangfeng Kong, Chuan Wu and Ling Huang et al.26 April 2015 | Environmental Science and Pollution Research, Vol. 23, No. 2Reclamation of reactive metal oxides from complex minerals using alkali roasting and leaching – an improved approach to process engineeringS. Sanchez-Segado, T. Makanyire, L. Escudero-Castejon, Y. Hara and A. Jha1 January 2015 | Green Chemistry, Vol. 17, No. 4Bauxite Processing Residue: A Critical Review of Its Formation, Properties, Storage, and RevegetationB. E. H. Jones and R. J. Haynes31 Jan 2011 | Critical Reviews in Environmental Science and Technology, Vol. 41, No. 3Fresh Water Leaching of Alkaline Bauxite Residue after Sea Water NeutralizationNeal W. Menzies, Ian M. Fulton, Rosemary A. Kopittke and Peter M. Kopittke1 September 2009 | Journal of Environmental Quality, Vol. 38, No. 5Revegetation Strategies for Bauxite Refinery Residue: A Case Study of Alcan Gove in Northern Territory, AustraliaJ. Bernhard Wehr, Ian Fulton and Neal W. Menzies2 February 2006 | Environmental Management, Vol. 37, No. 3 Recommended Vol. 09, No. 04 Metrics History PDF download