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Fe-TiB2复合阴极电解性能及元素迁移行为研究 预览

Study on the electrochemical performance of Fe-TiB2 composite cathode
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摘要 以氧化铝溶胶为粘结剂、金属Ni为烧结助剂,采用冷压-烧结制备出铝电解用Fe-TiB,复合阴极材料,利用20A电解试验研究其电解性能;利用能谱仪(EDS)对电解试验前后的复合阴极材料进行了成分物相分析,研究电解过程中各种元素迁移行为。研究结果表明:金属Ni作为烧结助剂在烧结过程中能有效的填充骨料之间的空隙,使该复合阴极材料的烧结致密度显著提高;20A电解试验过程电压稳定,铝液杂质0.42%,铝液能有效润湿阴极表面,表明Fe-TiB2复合阴极材料具有较理想的可润湿,性;在电解过程中,碱金属主要是通过液态电解质渗透进入阴极材料中,K元素渗透较Na元素更为深入,阴极表面生成的A1也会通过复合材料的空隙进入阴极内部,而Ni金属会利用材料内部的空隙反向扩散至铝液层中,直至达到相对平衡。 With alumina sol as binder and Ni metal as sintering aids, the Fe-TiB, composite cathode material for aluminum electrolysis was prepared by cold press sintering, and the mechanical properties of the composite cathode material were measured. The electrolytic properties of the composite cathode were studied by 20A electrolysis test, and the composite cathode materials before and after the electrolysis test were carried out by using EDS. The migration behavior of various elements in the electrolysis process was studied by phase analysis. The results show that Ni metal can effectively fill the gap between the aggregate during the sintering process, which can improve the sintering density of the composite cathode material significantly. The voltage of the 20A electrolysis test is stable, the impurity of aluminum liquid is 0.42%, the aluminum liquid can moisten the cathode surface effectively, and it is an ideal wetting cathode material. In the process of electrolysis, the alkali metal is mainly permeated into the cathode material through the liquid electrolyte, the depth of the K element penetrates more deeply than the Na element, and the Al generated by the cathode surface will also enter the cathode through the gap of the composite material, and the Ni metal will also spread to the aluminum liquid layer by the gap inside the material, until it reaches the aluminum liquid layer to the relative balance.
作者 梁玉冬 柴登鹏 侯光辉 包生重 王俊伟 刘英 Liang Yudong;Chai Dengpeng;Hou Guanghui;Bao Shengzhong;Wang Junwei;Liu Ying(Zhengzhou Non-ferrous Metals Research Institute Co.,Ltd.,CHALCO,Zhengzhou 450041)
出处 《铝镁通讯》 2019年第2期13-18,共6页
关键词 铝电解 TIB2 氧化铝溶胶 冷压烧结 渗透 Aluminum electrolysis TiB2 alumina sol cold pressed sintering infiltration
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  • 1李劼,吕晓军,李庆余,赖延清,杨建红.Electrical resistivity of TiB2/C composite cathode coating for aluminum electrolysis[J].中南工业大学学报:英文版,2006,13(3):209-213. 被引量:6
  • 2何福成.结构化学[M].人民教育出版社,1979.. 被引量:4
  • 3Thonstad J, Fellner P, Haarberg G M, et al. Aluminium Electrolysis[M]. 3rd edition. Dusseldorf Aluminium-Verlag, 2001: 8-22. 被引量:1
  • 4Kang S H. Pressureless sintering and properties of titanium dibosride ceramics containing chromium and iron[J]. Journal of the American Ceramic Society,2001,84(4):893-895. 被引量:1
  • 5Curtis J McMinn. A Review of RHM Cathode Development [C]//Euel R Cutshall, Light Metals 1992, Warrendale PA, USA: TMS, 1992: 419-425. 被引量:1
  • 6LEE D B, LEE Y C, KIM Deug J. The Oxidation of TiB2 Ceramics Containing Cr and Fe[J]. Oxidation of Metals, 2001,56 (1/2): 177-189. 被引量:1
  • 7Rudolf P Pawlek. AJumininum Wettable Cathodes: An Up date[C]//R DPeterson, Light Metals 2000, Warrendale PA, USA: TMS, 2000.. 449-454. 被引量:1
  • 8Xianan Liao, Harald A Oye. Carbon Cathode Corrosion by Aluminium Carbide Formation in Cryolitic Melts [C]//C Edward Eckert, Light Metals 1999, Warrendale PA, USA: TMS, 1999: 621-627. 被引量:1
  • 9IBRAHIEM M O, FOOSNASS T, OYE H A. Properties of Pitch and Furan-Based TiB2-C Cathodes[J]. Light Met als 2008,Warrendale PA, USA: TMS,2008 : 1013-1018. 被引量:1
  • 10IBRAHIEM M O, FOOSNASS T, OYE H A. Chemical Stability of Pitch-Based TiB2-C Coatings on Carbon Cathodes[J]. Light Metals 2007 ,Warrendale PA, USA.. TMS, 2007:1041-1046. 被引量:1

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