水平电极稀土电解槽阳极气泡动力学及电解液流动数值模拟
Simulation of Bubble Dynamics and Electrolyte Flow in Rare Earth Electrolysis Cell with Horizontal Electrode
刘航 1杨超云 2张耀 3栾义坤 1李殿中1
作者信息
- 1. 中国科学院金属研究所沈阳材料科学国家研究中心,辽宁沈阳 110016;中国科学技术大学材料科学与工程学院,辽宁沈阳 110016
- 2. 中国科学院金属研究所沈阳材料科学国家研究中心,辽宁沈阳 110016
- 3. 包头天石稀土新材料有限责任公司,内蒙古包头 014060
- 折叠
摘要
建立了一个二维瞬态数学模型,分别描述了水平电极稀土电解槽中阳极气泡动力学和气泡诱导的电解液运动.结果表明,随着阳极倾斜角度的增大,阳极气泡厚度逐渐增大.此外,与常规阳极相比,倾斜和倒角阳极有利于缩短气泡长度,提高气泡速度.同时,电解槽内气泡诱导的电解质运动可以改善稀土氟氧化物的分布和运动过程,从而提高电流效率.最后,基于电解液流动提出了一种新型的加料方式.
Abstract
A 2D transient mathematical model was established to separately describe the anode bubble dynamics and the bubble-induced electrolyte motion in the rare earth electrolysis cell with horizontal electrode.Results indicate that with the increase in the anode inclined angle,the maximum bubble thickness is increased gradually.Furthermore,compared with the conventional anode,the inclined and chamfered anodes are conductive to the bubble length reduction and the bubble velocity improvement.Meanwhile,the bubble-induced electrolyte motion in the electrolysis cell can improve the distribution and transport process of oxyfluorides,thereby enhancing the current efficiency.Finally,a novel feeding method based on the electrolyte flow is proposed.
关键词
稀土电解槽/水平电极/阳极倾斜角度/气泡行为/电解质运动Key words
rare earth electrolysis cell/horizontal electrode/anode inclined angle/bubble behavior/electrolyte motion引用本文复制引用
出版年
2024
NETL
NSTL
万方数据