Electrical Conductivity of Molten Cryolite and Potassium, Sodium, and Lithium Chlorides

1952 ◽  
Vol 99 (12) ◽  
pp. 527 ◽  
Author(s):  
Junius D. Edwards ◽  
Cyril S. Taylor ◽  
Allen S. Russell ◽  
L. Frank Maranville
2016 ◽  
Vol 19 (6) ◽  
pp. 1417-1422 ◽  
Author(s):  
Maziati Akmal Mohd Hatta ◽  
Mohd Warikh Abd Rashid ◽  
Umar Al-Amani Haji Azlan ◽  
Nurul Azuwa Azmi ◽  
Mohd Asyadi Azam ◽  
...  

1953 ◽  
Vol 100 (11) ◽  
pp. 508 ◽  
Author(s):  
Junius D. Edwards ◽  
Cyril S. Taylor ◽  
Lee A. Cosgrove ◽  
Allen S. Russell

Silicon ◽  
2014 ◽  
Vol 7 (3) ◽  
pp. 261-267 ◽  
Author(s):  
Michal Korenko ◽  
Zuzana Vasková ◽  
Jozef Priščák ◽  
František Šimko ◽  
Marta Ambrová ◽  
...  

Materials ◽  
2021 ◽  
Vol 14 (23) ◽  
pp. 7419
Author(s):  
Pavel Arkhipov ◽  
Olga Tkacheva

A new way to reduce the energy consumption during the operation of powerful aluminum reduction cells is suggested via reducing the resistance of the electrolyte, i.e., increasing its electrical conductivity. The electrical conductivity of molten cryolite mixtures NaF-AlF3-CaF2-Al2O3 with cryolite ratio (CR) of 2.1–3.0 and content of CaF2 and Al2O3, up to 8 wt%, was measured at the temperatures from liquidus to 1300 K. Based on the experimental results, a multifunctional equation for the electrical conductivity of oxide-fluoride cryolite melts was evaluated. The experimental and calculated values of the electrical conductivity agree within 1.5%. The activation energy of the electrical conductivity of the NaF-AlF3-CaF2-Al2O3 melts was estimated. The activation energy of electrical conductivity for molten NaF-AlF3 mixtures with CR 3.0 and 2.1, determined by the most mobile cations Na+, increased from 15.8 kJ/mol up to 18.5 kJ/mol. It was found that CR had a greater impact on the activation energy than the changes in the Al2O3 or CaF2 concentrations. Based on the ratio of the activation energies of the electrical conductivity and the viscous flow, the correlation between the electrical conductivity and viscosity of molten cryolite mixtures NaF-AlF3-CaF2-Al2O3 was illustrated.


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