Effect of Anode Geometry on Bubble Behavior in Aluminum Reduction Cell

doi:10.12068/j.issn.1005-3026.2019.02.015

Abstract

Abstract: The behavior of anodic bubbles in the aluminum electrolytic cells is sensitive to the electrolysis parameters. So， transparent electrolysis cells are used to study the effects of inclined anode and rounded anode on the bubble behavior in a similar environment used in industrial cells. The results show that when the inclined angle is below 2°， the change in angle has little effect on bubble behavior， and when the inclined angle is above 2°， the bubble velocity increases significantly and the bubble size and coverage ratio decrease with the angle increasing. Moreover， "Fortin"-like bubbles are observed on the inclined anodes. The rounded anode reduces the bubble size and coverage ratio at a certain degree， while it does not promote bubbles releasing obviously.

Key words: aluminum electrolysis, transparent electrolysis cell, inclined anode, rounded anode, bubble releasing

CLC Number:

TF111.52

HUANG Yi-peng， WANG Zhao-wen， YANG You-jian， SHI Zhong-ning. Effect of Anode Geometry on Bubble Behavior in Aluminum Reduction Cell[J]. Journal of Northeastern University Natural Science, 2019, 40(2): 228-233.

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