Solidification of LiCl–Li2O oxide reduction salt into sodalite by a spark plasma sintering

The waste LiCl–Li 2 O oxide reduction salt was solidified and transformed into sodalite by the spark plasma sintering method. Compared with traditional solidification method, SPS operates at a lower pressure, lower temperature, shorter processing time, and without sintering additive. The SPS-solidif...

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Bibliographic Details
Published inJournal of radioanalytical and nuclear chemistry Vol. 331; no. 7; pp. 2919 - 2928
Main Authors Jiang, Yuqi, Gao, Shuaibo, Li, Peng, Ma, Yongsong, Yin, Huayi, Wang, Dihua
Format Journal Article
LanguageEnglish
Published Cham Springer International Publishing 01.07.2022
Springer Nature B.V
Subjects
Chemistry
Chemistry and Materials Science
Diagnostic Radiology
Hadrons
Heavy Ions
Inorganic Chemistry
Leaching
Lithium oxides
Nuclear Chemistry
Nuclear Physics
Physical Chemistry
Reduction
Sintering (powder metallurgy)
Sodalite
Solidification
Spark plasma sintering
O salt
Spark plasma sintering
Radioactive element
LiCl–Li
Sodalite
Solidification
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Summary:The waste LiCl–Li 2 O oxide reduction salt was solidified and transformed into sodalite by the spark plasma sintering method. Compared with traditional solidification method, SPS operates at a lower pressure, lower temperature, shorter processing time, and without sintering additive. The SPS-solidified sodalite presents a low porosity of 0.37% and low leaching rates of 2.21 g m –2  d –1 for Cs, 3.05 × 10 –1  g m –2  d –1 for Ba, and 3.12 × 10 –1  g m –2  d –1 for Sr. Overall, the SPS is a promising method to solidify various waste OR salts.
ISSN:0236-5731
1588-2780
DOI:10.1007/s10967-022-08376-0