TY - JOUR
T1 - Effect of Anti-Encrustation Additives on Zirconium Molybdate Hydrate
AU - Abe, Risako
AU - Hirasawa, Izumi
AU - Miyazaki, Yasunori
AU - Takeuchi, Masayuki
N1 - Funding Information:
The authors express their thanks to Waseda University Environmental Safety Center and Waseda University Kagami Memorial Research Institute for Materials Science and Technology for polite advices in chemical and physical analysis and for detailed technical support. The authors have declared no conflict of interest.
Publisher Copyright:
© 2020 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
PY - 2020/6/1
Y1 - 2020/6/1
N2 - Anti-encrustation additives were mainly investigated in nitric acid solution with zirconium (Zr), molybdenum (Mo), and tellurium (Te) to prevent the encrustation of zirconium molybdate hydrate (ZMH). The ZMH generated by reaction crystallization of Mo and Zr as main fission products has a high adhesion property in spent nuclear fuel reprocessing. In addition, it is reported that Te, which is also one of the fission products, precipitates together with ZMH. Encrustation of precipitates containing Te was effectively prevented by adding molybdenum trioxide (MoO3) crystals as an anti-encrustation reagent. The encrustation amount was found to be larger than that under the condition of only Zr and Mo without Te. Consequently, it was suggested that the high adhesion property of Te affected the encrustation amount of ZMH.
AB - Anti-encrustation additives were mainly investigated in nitric acid solution with zirconium (Zr), molybdenum (Mo), and tellurium (Te) to prevent the encrustation of zirconium molybdate hydrate (ZMH). The ZMH generated by reaction crystallization of Mo and Zr as main fission products has a high adhesion property in spent nuclear fuel reprocessing. In addition, it is reported that Te, which is also one of the fission products, precipitates together with ZMH. Encrustation of precipitates containing Te was effectively prevented by adding molybdenum trioxide (MoO3) crystals as an anti-encrustation reagent. The encrustation amount was found to be larger than that under the condition of only Zr and Mo without Te. Consequently, it was suggested that the high adhesion property of Te affected the encrustation amount of ZMH.
KW - Anti-encrustation additives
KW - Molybdenum trioxide
KW - Reaction crystallization
KW - Zirconium molybdate hydrate
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U2 - 10.1002/ceat.201900638
DO - 10.1002/ceat.201900638
M3 - Article
AN - SCOPUS:85082595440
SN - 0930-7516
VL - 43
SP - 1059
EP - 1064
JO - Chemical Engineering and Technology
JF - Chemical Engineering and Technology
IS - 6
ER -