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Yang Y.,Northeastern University China | Wang Z.,Northeastern University China | Fu W.,Kunming Research Institute of Metallurgy | Gao B.,Northeastern University China | And 3 more authors.
Proceedings of 2010 World Non-Grid-Connected Wind Power and Energy Conference, WNWEC 2010 | Year: 2010

Alumina is the raw material in the aluminum electrolysis industry. The dissolution property of alumina is an important index. Generally, faster dissolution rate and higher solubility are required. In this paper, the dissolution behavior of six types of industrial alumina samples in cryolite-based melts was studied by using a quartz transparent cell. Furthermore, the influencing factors on the dissolution rate and solubility of alumina are analyzed and discussed. It is found that the dissolution phenomena of the fluorinated alumina is quite different from the other industrial alumina, and the dissolution rate and solubility of the fluorinated alumina are approximately twice that of the other industrial alumina. © 2010 IEEE. Source

Fu W.-Q.,Kunming Research Institute of Metallurgy | Wang Z.-W.,Northeastern University China | Yang Y.-J.,Northeastern University China | Yang D.-J.,Kunming Research Institute of Metallurgy | And 4 more authors.
Yejin Fenxi/Metallurgical Analysis | Year: 2013

The liquidus temperature of electrolyte was measured by the common cooling curve method. The experimental data were quadratic fitted using the method of least squares to obtain the regression equation of liquidus temperature. Meanwhile, the liquidus temperature of Na3AlF6-AlF3 - Al2O3-CaF2-KCl system was measured by quadratic regression orthogonal experimental design. The determination results were treated by regression analysis to obtain the regression equation of liquidus temperature. The results indicated that, the liquidus temperature of electrolyte could be reduced by adding potassium chloride. The objective of this paper was to obtain the basic data of liquidus temperature of aluminum electrolyte for the service of improving current efficiency and reducing production cost. Source

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