Kinetics of alumina dissolution in aluminium electrolysis cells

铝电解槽中氧化铝溶解动力学

• 批准号: 490433-2015
• 负责人: Kiss, Laszlo
• 金额: $ 18.92万
• 依托单位: Université du Québec à Chicoutimi
• 依托单位国家: 加拿大
• 项目类别: Collaborative Research and Development Grants
• 财政年份: 2018
• 资助国家: 加拿大
• 起止时间: 2018-01-01 至 2019-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=655691
• 关键词: Kinetics; alumina; dissolution; aluminium; electrolysis

The present proposal aims at the further deepening of understanding of the alumina dissolution process in aluminum electrolysis cells in order to improve operational stability and better energy efficiency. The expected improvements offer the potential of a better control of greenhouse gas emissions during primary aluminum production. **The proposed collaborative research with Rio Tinto Alcan (RTA), aims at the better control of spatial and temporal variations of the alumina distribution. The project builds upon the results of the previous five-year NSERC-RTA collaborative research, titled "Study of Alumina Dissolution and Side-ledge Behaviour in Aluminium Electrolysis Cells". In that project we extended the fundamental knowledge about the nature and mechanisms of alumina dissolution in industrial cells and we identified the directions of further research. **Experimental methods and mathematical modeling will be both used to study the alumina feeding process. The previous cooperative research project helped to forge a very efficient team, with competent members with complementary expertise both from academia (UQAC and École Polytechnique) and RTA (Arvida Research and Development Center and Laboratoire de Recherches des Fabrications, en France).**The primary aluminum industry represents a very important sector in the Canadian economy. The Canadian smelters excel worldwide in their energy efficiency and low environmental impact. RTA, the third biggest producer of primary metal is also a technology leader. The expected results will help the Canadian aluminum industry to keep its leading position in the increasingly stronger international competition.**

本提案旨在进一步加深对铝电解槽中氧化铝溶解过程的了解，以提高运行稳定性和能源效率。预期的改进为更好地控制原铝生产过程中的温室气体排放提供了潜力。 *拟议与力拓加铝公司 (RTA) 的合作研究旨在更好地控制氧化铝分布的空间和时间变化。该项目建立在之前为期五年的 NSERC-RTA 合作研究成果的基础上，该研究题为“研究”。铝电解槽中的氧化铝溶解和侧壁行为”。在该项目中，我们扩展了有关工业电解槽中氧化铝溶解的性质和机制的基础知识，并确定了进一步研究的方向。**实验方法和数学建模将是之前的合作研究项目帮助组建了一个非常高效的团队，其成员来自学术界（UQAC 和巴黎综合理工学院）和巴黎综合理工学院，具有互补的专业知识。 RTA（法国阿维达研发中心和制造实验室）。**原铝工业是加拿大经济中非常重要的部门，加拿大冶炼厂在能源效率和低环境影响方面表现出色。第三大初级金属生产商也是技术领先者，预期结果将有助于加拿大铝工业在日益激烈的国际竞争中保持领先地位。**