为了研究工业中使用阴极碳块钠和电解质的渗透过程,用扫描电子显微镜和酚酞试剂法研究铝电解后阴极试样碳块(35％半石墨质、全石墨质和石墨化)钠和电解质的渗透行为.结果表明,阴极材料内部孔隙连通越多,NaF与Na3AlF6在阴极碳块中的浓度越高;阴极碳块石墨化程度越高,渗透到阴极碳块的钠和电解质浓度越低.但钠在3种阴极碳块骨料石墨的“微孔”中渗透量几乎没有差别.
参考文献
| [1] | 邱竹贤.预焙槽炼铝(3版)[M].北京:冶金工业出版社,2005.,2005. |
| [2] | 周孑民,李茂,王长宏.石墨化阴极铝电解槽电热场仿真研究[J].炭素技术,2007(02):6-9. |
| [3] | 李庆余,赖延清,李劼,刘业翔.常温固化TiB2涂层阴极抗钠渗透性[J].中南大学学报（自然科学版）,2004(06):907-910. |
| [4] | Xue J L,Liu Q S,Zhu J,et al.Sodium penetration into carbon-based cathodes during aluminum electrolysis[C]//The Minerals,Metals & Materials Society,Light Metals,San Antonio,2006:651-654.,2006. |
| [5] | L(U) Xiao-jun,LI Qing-yu,LAI Yan-qing,LI Jie.Digital characterization and mathematic model of sodium penetration into cathode material for aluminum electrolysis[J].中南大学学报（英文版）,2009(01):96-100. |
| [6] | Wang Y W,Feng N X,You J,et al.Study on expansion of TiB2/C compound cathode and sodium penetration during electrolysis[C]//The Minerals,Metals & Materials Society.Light Metals.Orlando,2007:1067-1070.,2007. |
| [7] | 冯乃祥 .冰晶石熔体和金属Na在铝电解阴极碳块中的共同渗透[J].金属学报,1999,35(6):611-617.FENG Nai-xiang.Penetration of cryolite melt and sodium into cathode carbon blocks during electrolysis[J].Acta Metallurgica Sinica,1999,35 (6):611-617.,1999. |
| [8] | Zolochevsky A,Hop J G,Foosnaes T,et al .Rapoport-samoilenko test for cathode carbon materials-Ⅱ.swelling with external pressure and effect of creep[J].Carbon,2005,43(6):1222-1230.,2005. |
| [9] | 刘庆生,薛济来,朱骏,李百松.添加剂对铝电解炭基阴极钠渗透膨胀过程的影响[J].北京科技大学学报,2008(04):403-407. |
| [10] | Xue J L,Chen X,Gao Y L,et al.Wettability of liquid aluminum on carbon/graphite/TiB2 composite cathode materials[C]//The Minerals,Metals & Materials Society.Light metals.New York,2010:383-386.,2010. |
| [11] | Fellner P,Korenko M,Danielik V,et al .The content of sodium in aluminium during electrolysis of the molten systems Na3 AlF6-NaCl-Al2 O3 and NaF-NaCl[J].Electrochimica Acta,2004,49:1505-1511.,2004. |
| [12] | Brisson P Y,Darmstadt H,Fafard M,et al .X-ray photoelectron spectroscopy study of sodium reactions in carbon cathode blocks of aluminum oxide reduction cells[J].Carbon,2006,44(8):1438-1447.,2006. |
| [13] | Nafaa A,Jacques B,Daniel D .Electrochemical insertion of sodium into graphite in molten sodium fluoride at 1025℃[J].Electrochemical Acta,2006,51 |
| [14] | 袁珂,廖立兵,万红波,王川,王春伟.膨润土中方石英和α-石英的定量相分析--X射线衍射外标法和K 值法的对比[J].硅酸盐学报,2011(02):377-382. |
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