Published January 1, 2012
| Version v1
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On the Electrochemical Reduction Mechanism of CaWO4 to W Powder
Creators
- 1. Middle E Tech Univ, Dept Met & Mat Engn, TR-06800 Ankara, Turkey
Description
The reduction mechanism of CaWO4 to W in molten eutectic CaCl2-NaCl electrolyte has been studied. Cyclic voltammetry and constant potential electrolysis tests were performed to determine the reversible cell potential. Analyses of the experimental results revealed that at least 2.2 V was required to compensate the potentials for the accompanying cell reaction and the electrode polarizations. A cell reaction was proposed by associating the experimental results and the Gibbs energy changes of the possible reactions.
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