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: $ 24.08万
• 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: 2017
• 资助国家: 加拿大
• 起止时间: 2017-01-01 至 2018-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=619293
• 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.

目前的提案在铝电解中进一步加深了铝电解，以改善有效的能量和更好的能量。氧化铝分布的变化是基于先前的五年合作研究的结果，标题为“氧化铝溶解和铝电解细胞中的侧向行为”。自然的氧化铝溶解在工业细胞中，我们识别出用于研究氧化铝的方向。 ÉcolePolytechnique）和RTA制造，法国。铝制行业的安全性。铝制行业将在越来越强大的国际竞争中保持领先地位。