Composition and thermal analysis of crust formed from industrial anode cover

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dc.contributor.author Zhang, Q en
dc.contributor.author Taylor, Mark en
dc.contributor.author Chen, John en
dc.contributor.author Cotton, D en
dc.contributor.author Groutzo, T en
dc.contributor.author Yang, X en
dc.date.accessioned 2019-09-30T02:27:32Z en
dc.date.issued 2016-01-01 en
dc.identifier.issn 2367-1181 en
dc.identifier.uri http://hdl.handle.net/2292/48051 en
dc.description.abstract © The Minerals, Metals & Materials Society 2016. When the anode cover is heated up in the reduction cell, the crust formation from the anode cover commences at the bottom and the process is driven by thermo-chemical processes. It is important to study the composition and thermal stability properties of the crust in order to understand the mechanisms of crust formation and deterioration. Several crust pieces were taken from industrial prebaked anode cells. A number of vertical crust sections were sampled from these pieces, and each section was analyzed for composition and phase change temperature. Results show that the bottom layer is enriched in cryolite, consistent with results published in the literature. The upper region was found to contain more chiolite. Crushed bath-based anode crust has higher CR than alumina based anode crust. The melting of chiolite in the crust leaves substantial macro-porosity there, which contributes to the absorption of NaAlF4and the penetration of bath through it. The formation conditions of crystalline crust were discussed. en
dc.relation.ispartofseries Minerals, Metals and Materials Series en
dc.rights Items in ResearchSpace are protected by copyright, with all rights reserved, unless otherwise indicated. Previously published items are made available in accordance with the copyright policy of the publisher. en
dc.rights.uri https://researchspace.auckland.ac.nz/docs/uoa-docs/rights.htm en
dc.title Composition and thermal analysis of crust formed from industrial anode cover en
dc.type Conference Item en
dc.identifier.doi 10.1007/978-3-319-65136-1_115 en
pubs.issue 210869 en
pubs.begin-page 675 en
dc.rights.holder Copyright: The author en
pubs.end-page 680 en
pubs.publication-status Published en
dc.rights.accessrights http://purl.org/eprint/accessRights/RestrictedAccess en
pubs.elements-id 731400 en
pubs.org-id Engineering en
pubs.org-id Chemical and Materials Eng en
dc.identifier.eissn 2367-1696 en


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