Electrorefining of Silicon in Molten Calcium Chloride

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© 2007 ECS - The Electrochemical Society
, , Citation Ole E. Kongstein et al 2007 ECS Trans. 3 357 DOI 10.1149/1.2798679

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1 Norwegian University of Science and Technolog

2 orwegian University of Science and Technology

3 Norwegian University of Science and Technology

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1938-5862/3/35/357

Abstract

Molten salt electrorefining can in principle be used to purify silicon in a simple and inexpensive way. In the present work a melt containing calcium chloride, sodium chloride and calcium oxide at 850 {degree sign}C was used in electrochemical studies. The results indicate that the concept of silicon electrorefining in the melt mentioned above is possible.

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10.1149/1.2798679