Identification of magnesia-chromite refractory degradation mechanisms of secondary copper smelter linings

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• 作者：Liugang Chen ^{Liugang.chen@mtm.kuleuven.be" class="auth_mail" title="E-mail the corresponding author} ; Shuangliang Li ; Peter Tom Jones ^{Peter.jones@mtm.kuleuven.be" class="auth_mail" title="E-mail the corresponding author} ; Muxing Guo ^{Muxing.guo@mtm.kuleuven.be" class="auth_mail" title="E-mail the corresponding author} ; Bart Blanpain ^{Bart.blanpain@mtm.kuleuven.be" class="auth_mail" title="E-mail the corresponding author} ; Annelies Malfliet ; ^{Annelies.malfliet@mtm.kuleuven.be" class="auth_mail" title="E-mail the corresponding author}
• 关键词：Magnesia&ndash ; chromite refractory ; Degradation ; Post-mortem analysis ; Slag infiltration
• 刊名：Journal of the European Ceramic Society
• 出版年：2016
• 出版时间：July 2016
• 年：2016
• 卷：36
• 期：8
• 页码：2119-2132
• 全文大小：5669 K

文摘

Used direct-bonded magnesia–chromite refractory bricks from a secondary Cu smelter were collected to characterize the degradation occurring during application. Based on this post-mortem analysis, lab scale experiments were designed using the direct-bonded refractory type and a fused grain magnesia–chromite refractory. Firstly, the infiltration behavior of a Cu–Cu_xO and a Cu–Cu_xO–PbO mixture was investigated. Secondly, the influence of temperature and the prior infiltration of a Cu–Cu_xO mixture on the infiltration of the ZnO containing fayalite slag was determined. The combination of the post-mortem study and the lab scale tests allowed a more comprehensive understanding of the evolution of the refractory microstructure during degradation. Likewise, it allowed to evaluate how certain parameters, such as temperature and refractory type, affect the infiltration and degradation behavior. As a consequence, conclusions can be drawn about measures to minimize refractory wear in copper smelter linings.