Application of measuring electrical conductivity of cryolite-based melts by CVCC technique

作者：Wang Zhao Wen^*; Hu Xian Wei; Gao Bing Liang; Shi Zhong Ning

来源：Journal of Northeastern University, 2006, 27(7): 786-789.

• Aluminum electrolysis
• Continuously varying cell constant (CVCC) technique
• Cryolite based system
• Molten salts

The continuously varying cell constant (CVCC) technique was verified to be feasible by measuring the electrical conductivity of standard KC1 solution. It was found that the error due to polarization resistance is very small if using CVCC technique to determine the electrical conductivity of aqueous solutions and molten salts, and no deduction of lead/electrode resistance value from read-out value required, thus simplifying the experimental procedure. The electrical conductivity of Na3AlF6-Al2O3 melts with different Al2O3 contents was measured by CVCC technique and the results were compared with the relevant data in earlier works. It was proved that CVCC technique can measure accurately the electrical conductivity of aluminum electrolyte and other high-temperature molten salts.

• 出版日期2006
• 单位东北大学