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dc.contributor.authorBrandvik, Trond
dc.contributor.authorRatvik, Arne Petter
dc.contributor.authorGrande, Tor
dc.date.accessioned2019-12-13T13:21:11Z
dc.date.available2019-12-13T13:21:11Z
dc.date.created2018-11-23T16:08:57Z
dc.date.issued2018
dc.identifier.issn2518-332X
dc.identifier.urihttp://hdl.handle.net/11250/2633259
dc.description.abstractWater can be present in significant amounts in green anodes due to cooling with water after the forming process. The chemical environment in the pit can potentially be affected by the presence of water and may cause degradation mechanisms of the refractory lining so far not considered. A thermodynamic assessment of the role of water on formation of HF(g) due to traces of cryolite bath in the green anodes is presented. It is shown that water results in the formation of HF, and subsequently, it is predicted that HF will react with the refractory materials forming a solid oxyfluoride phase at moderate temperatures. The oxyfluoride is however not thermally stable during the whole baking cycle and SiF4 will evaporate upon further heating. Finally, the effect of water on carbon gasification and CO and H2 production during anode baking is also addressed. The findings are discussed in relation to previous studies of the degradation of refractory linings in anode baking furnacenb_NO
dc.language.isoengnb_NO
dc.relation.ispartofseriesProceedings of the 36th International ICSOBA Conference;2018
dc.subjectWater coolingnb_NO
dc.subjectVolatile HFnb_NO
dc.subjectAnode baking furnacenb_NO
dc.subjectRefractory liningnb_NO
dc.titleImplications of water cooling of green anodes during anode baking – a thermodynamic studynb_NO
dc.title.alternativeImplications of water cooling of green anodes during anode baking – a thermodynamic studynb_NO
dc.typeJournal articlenb_NO
dc.description.versionpublishedVersionnb_NO
dc.source.journalThe International Committee for Study of Bauxite, Alumina & Aluminium Conference Proceedingsnb_NO
dc.identifier.cristin1634408
cristin.unitcode7401,80,3,0
cristin.unitnameBærekraftig energiteknologi
cristin.ispublishedtrue
cristin.fulltextpostprint
cristin.qualitycode0


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