Chemical titration method for Determination of Concentration of REO in Rare Earth Fluoride Melts

DOI

10.2991/mseee-17.2017.80How to use a DOI?

Keywords

REF3-LiF, REO concentration, rare earth, molten salts, solubility.

Abstract

In the present study, chemical titration method for determination of concentration of REO in REF3-LiF-RE2O3 melts was investigated. The melts with the composition of 40mol%REF3-60mol%LiF (RE=La and Nd) was taken as object for illustrating the measurement of concentration and solubility of REO by the chemical titration method. Then the changing of REO concentration in 40mol%REF3-60mol%LiF melts with electrolytic time in practical electrolysis production was studied. The concentration of REO decreases with the electrolytic time, and rate of the decreasing also declines with the electrolytic time. And the reasonable time interval for REO addition was recommended defining as 1.75 h which is very close to the empirical value 2 h, This would also illustrate the reliability of chemical titration method on determination of concentration of REO in the melts.

Copyright

© 2017, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Xiaoping Zhu
AU  - Shuchen Sun
AU  - Chuan Liu
AU  - Ganfeng Tu
PY  - 2017/08
DA  - 2017/08
TI  - Chemical titration method for Determination of Concentration of REO in Rare Earth Fluoride Melts
BT  - Proceedings of the 2017 International Conference on Material Science, Energy and Environmental Engineering (MSEEE 2017)
PB  - Atlantis Press
SP  - 434
EP  - 439
SN  - 2352-5401
UR  - https://doi.org/10.2991/mseee-17.2017.80
DO  - 10.2991/mseee-17.2017.80
ID  - Zhu2017/08
ER  -