Abstract
Current efficiency can be increased and energy consumption can be lowered by low temperature aluminum electrolysis. However, many problems will occur, such as low electrical conductivity, cathode shell, low alumina solubility and alumina-solution rates if the temperature is too low. Of these problems, low alumina solubility and alumina-solution rate are difficult problems. In this paper, a novel method that can measure the solubility and dissolution rate of Al2O3 is introduced based on early research. The double rooms’ transparent quartz electrobath is used for low temperature aluminum electrolysis. The image sequence is obtained by taking from the double rooms’ transparent quartz electrobath. Image analysis techniques are used to compute the change of solubility and dissolution rate of Al2O3. The method can analyze the influence factors of solubility and dissolution rate of Al2O3 intuitively and roundly by transparent quartz electrobath and image analysis techniques.
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