A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Graphitized cathode, preparation method, aluminum electrolysis cell and aluminum electrolysis method
The invention provides a graphitized cathode, a preparation method, an aluminum electrolysis cell and an aluminum electrolysis method, and belongs to the field of aluminum smelting. Comprising a graphitized cathode substrate; the invention discloses a graphitized cathode which comprises a graphitized cathode substrate and a TiB2 composite layer, at least part of the surface of the graphitized cathode substrate is covered with the TiB2 composite layer, the carbon content of the TiB2 composite layer is smaller than 20 wt.%, and the thickness of the TiB2 composite layer ranges from 5 mm to 50 mm. Firstly, the TiB2 composite material can show excellent anti-permeation performance; and secondly, when the carbon content in the TiB2 composite material is less than 20wt.%, the prepared cathode has good wettability with aluminum water and high hardness, and can effectively resist sodium-potassium permeation expansion of low-temperature electrolyte. And thirdly, the thickness of the composite layer is limited to be 5mm-50mm, so that the permeation and expansion resistance of the cathode and molten aluminum can be met. Therefore, the sodium-potassium permeation damage of the low-temperature electrolyte to the graphitized cathode is resisted.
本发明提供了一种石墨化阴极及制备方法、铝电解槽、铝电解方法，属于铝冶炼领域。包括：石墨化阴极基体；以及TiB2复合层，所述TiB2复合层覆盖于所述石墨化阴极基体的至少部分表面，所述TiB2复合层的碳含量＜20wt.％，所述TiB2复合层的厚度为5mm‑50mm。首先，TiB2复合材料可展现出优异的抗渗透性能。其次，当TiB2复合材料中的碳含量小于20wt.％时，制备的阴极与铝水润湿性好、硬度高，能够有效抵抗低温电解质的钠钾渗透膨胀。再次，限定复合层的厚度为5mm‑50mm，能够满足阴极与铝水的抗渗透膨胀性能。从而抵抗了低温电解质对石墨化阴极的钠钾渗透破坏。
Graphitized cathode, preparation method, aluminum electrolysis cell and aluminum electrolysis method
The invention provides a graphitized cathode, a preparation method, an aluminum electrolysis cell and an aluminum electrolysis method, and belongs to the field of aluminum smelting. Comprising a graphitized cathode substrate; the invention discloses a graphitized cathode which comprises a graphitized cathode substrate and a TiB2 composite layer, at least part of the surface of the graphitized cathode substrate is covered with the TiB2 composite layer, the carbon content of the TiB2 composite layer is smaller than 20 wt.%, and the thickness of the TiB2 composite layer ranges from 5 mm to 50 mm. Firstly, the TiB2 composite material can show excellent anti-permeation performance; and secondly, when the carbon content in the TiB2 composite material is less than 20wt.%, the prepared cathode has good wettability with aluminum water and high hardness, and can effectively resist sodium-potassium permeation expansion of low-temperature electrolyte. And thirdly, the thickness of the composite layer is limited to be 5mm-50mm, so that the permeation and expansion resistance of the cathode and molten aluminum can be met. Therefore, the sodium-potassium permeation damage of the low-temperature electrolyte to the graphitized cathode is resisted.
本发明提供了一种石墨化阴极及制备方法、铝电解槽、铝电解方法，属于铝冶炼领域。包括：石墨化阴极基体；以及TiB2复合层，所述TiB2复合层覆盖于所述石墨化阴极基体的至少部分表面，所述TiB2复合层的碳含量＜20wt.％，所述TiB2复合层的厚度为5mm‑50mm。首先，TiB2复合材料可展现出优异的抗渗透性能。其次，当TiB2复合材料中的碳含量小于20wt.％时，制备的阴极与铝水润湿性好、硬度高，能够有效抵抗低温电解质的钠钾渗透膨胀。再次，限定复合层的厚度为5mm‑50mm，能够满足阴极与铝水的抗渗透膨胀性能。从而抵抗了低温电解质对石墨化阴极的钠钾渗透破坏。
Graphitized cathode, preparation method, aluminum electrolysis cell and aluminum electrolysis method
一种石墨化阴极及制备方法、铝电解槽、铝电解方法
BAO SHENGZHONG (author) / WANG HUAIJIANG (author) / CHEN KAIBIN (author) / ZHANG FANGFANG (author) / LUO LIFEN (author) / LI JING (author) / SHI MENGHAN (author) / ZHANG YA'NAN (author) / LIU YANHUI (author) / ISHIKI (author)
2024-12-06
Patent
Electronic Resource
Chinese
Preparation method of high-volume-density graphitized cathode carbon block for aluminum electrolysis
| European Patent Office | 2021
| European Patent Office | 2023
| European Patent Office | 2024
Aluminum electrolysis anode and preparation method thereof
| European Patent Office | 2024