|
| Refining of Hafnium by Molten Salt Electrolysis in KCl-NaCl-K2HfCl6 system |
|
Received:May 21, 2014
Revised:May 26, 2014
Accepted:May 22, 2014
Published Online:September 09, 2014
|
| View Full Text View/Add Comment Download reader |
| DOI： |
| KeyWord:molten salt electro-refining; hafnium, KCl-NaCl-K2HfCl6 system,particle size |
| Author | Institution |
| LIU Xu |
Rare Metals,Metallurgy Materials Research Institute,General Research Institute for Nonferrous Metals |
| LI Guo-xun |
School of Metallurgical and ecological engineering,University of Science and Technology Beijing;Rare Metals,Metallurgy Materials Research Institute,General Research Institute for Nonferrous Metals |
| SONG Bo |
School of Metallurgical and ecological engineering,University of Science and Technology Beijing |
| WANG Li-jun |
Rare Metals,Metallurgy Materials Research Institute,General Research Institute for Nonferrous Metals |
|
| Hits: 3162 |
| Download times: 1 |
| Abstract: |
| Electro-refining of hafnium was investigated in molten KCl-NaCl-K2HfCl6 system. The influences of electrolysis temperature, cathode current density and the soluble hafnium concentration on hafnium electro-refining were examined. The results showed that the volatilization loss of the electrolyte and the changes of the soluble hafnium concentration both were small when the electrolytic temperature is below 810℃. Bigger and block hafnium can be prepared with the cathode current density under 0.5A/cm2 and the soluble hafnium concentration around 5.1﹪. Dendritic hafnium metal with a particle size of more than 1mm was obtained under the optimized conditions. |
| Close |
|
|
|