Scholarlink

To address the problem of high potassium content in aluminumAluminum electrolytes in southwestern ChinaChina, a technical solution for potassium removalRemoval from electrolytes was proposed. Systematic analysis and demonstration of the proposed solution were carried out based on the actual situation of a certain aluminum smelterAluminum smelter. The results showed that KF in aluminumAluminum electrolytesElectrolyte was volatile and entered the electrolytic flue gas in the form of solid volatilesSolid volatiles such as KAlF4, K2NaAl3F12, and K2NaAlF6. The contents of KF in solid volatiles sampled in different smeltersSmelter which had different electrolyte systems, were basically similar. The concentration of KF in electrolytic cells could be quickly reduced by collecting the solid volatiles and preventing them from mixingMixing with fluorinated aluminaAlumina and entering the electrolytic cell again. The high potassium fluoroaluminates, which are separated from the collected solid volatiles by flotation method, could be used to prepare the KF-NaF-AlF3 based low-temperature electrolytesLow-temperature electrolyte.

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Potassium Removal from Aluminum Electrolyte in Aluminum Electrolysis Process

  • 会议论文

  • 发表日期：

    2025年

查看全文
  • Kaibin Chen,
  • Shengzhong Bao,
  • Jie Li,
  • Huaijiang Wang,
  • Lifen Luo,
  • Fangfang Zhang,
  • Xu Shi,
  • Junyi Ma

摘要

To address the problem of high potassium content in aluminumAluminum electrolytes in southwestern ChinaChina, a technical solution for potassium removalRemoval from electrolytes was proposed. Systematic analysis and demonstration of the proposed solution were carried out based on the actual situation of a certain aluminum smelterAluminum smelter. The results showed that KF in aluminumAluminum electrolytesElectrolyte was volatile and entered the electrolytic flue gas in the form of solid volatilesSolid volatiles such as KAlF4, K2NaAl3F12, and K2NaAlF6. The contents of KF in solid volatiles sampled in different smeltersSmelter which had different electrolyte systems, were basically similar. The concentration of KF in electrolytic cells could be quickly reduced by collecting the solid volatiles and preventing them from mixingMixing with fluorinated aluminaAlumina and entering the electrolytic cell again. The high potassium fluoroaluminates, which are separated from the collected solid volatiles by flotation method, could be used to prepare the KF-NaF-AlF3 based low-temperature electrolytesLow-temperature electrolyte.