Vacuum evaporation of LiCl–BaCl2–SrCl2 system

Vacuum evaporation of a LiCl–BaCl2–SrCl2 system was investigated to design a process for waste reduction and salt recycling. Through thermo-gravimetric analysis (TGA) tests of pure LiCl at a reduced pressure, a model equation for LiCl vaporization was established. As results of TGA tests of pure BaC...

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Bibliographic Details
Published in:Chemical engineering science 2012-06, Vol.75, p.359-363
Main Authors: Eun, H.C., Cho, Y.Z., Park, H.S., Kim, I.T., Lee, H.S., Park, G.I.
Format: Article
Language:English
Subjects:
Applied sciences
Chemical engineering
Co-evaporation
equations
evaporation
Exact sciences and technology
LiCl–BaCl2–SrCl2
process design
recycling
Salt recycling
TGA
thermogravimetry
Vacuum evaporation
volatilization
Waste reduction
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Summary:Vacuum evaporation of a LiCl–BaCl2–SrCl2 system was investigated to design a process for waste reduction and salt recycling. Through thermo-gravimetric analysis (TGA) tests of pure LiCl at a reduced pressure, a model equation for LiCl vaporization was established. As results of TGA tests of pure BaCl2 and SrCl2, it was confirmed that they were very stable at 900°C and 0.5Torr. At 1Torr, evaporation of the LiCl–BaCl2–SrCl2 system looked similar to the pure LiCl vaporization results. Co-evaporation of BaCl2 or SrCl2 with LiCl was very slight in this study. ► Thermo-gravimetric analysis tests of pure LiCl were performed at a reduced pressure. ► A model equation for LiCl vaporization was established. ► BaCl2 and SrCl2 were very stable at 900oC and 0.5Torr. ► Vacuum evaporation of LiCl–BaCl2–SrCl2 system was investigated. ► Co-evaporation of BaCl2 or SrCl2 with LiCl was very slight in the vacuum evaporation.
ISSN:0009-2509
1873-4405
DOI:10.1016/j.ces.2012.04.003