Science and Technology of Nuclear Installations

Research Article

Dissolution Behavior of Simulated Spent Nuclear Fuel in LiCl-KCl-UCl₃ Molten Salt

Table 2

Thermodynamic calculation results of chemical reactions between UCl₃ and oxide components of SNFs at 500°C.


Category	Oxides	Reactions	ΔG (kJ)

TRU	PuO₂	UCl₃ + PuO₂ = PuCl₃ + UO₂	−131.16
	Pu₂O₃	UCl₃ + 0.5Pu₂O₃ = PuCl₃ + 0.75UO₂ + 0.25U	−71.375
	AmO₂	UCl₃ + AmO₂ = AmCl₃ + UO₂	−251.31
	Am₂O₃	UCl₃ + 0.5AmO₃ = AmCl₃ + 0.75UO₂ + 0.25U	−73.076
	CmO₂	UCl₃ + CmO₂ = CmCl₃ + UO₂	−252.69
	Cm₂O₃	UCl₃ + 0.5Cm₂O₃ = CmCl₃ + 0.75UO₂ + 0.25U	−66.345

AE	SrO	UCl₃ + 1.5SrO = 1.5SrCl₂ + 0.75UO₂ + 0.25U	−310.51
	SrZrO₃	UCl₃ + 1.5SrZrO₃ = 1.5SrCl₂ + 1.5ZrO₂ + 0.75UO₂ + 0.25U	−186.78
	BaO	UCl₃ + 1.5BaO = 1.5BaCl₂ + 0.75UO₂ + 0.25U	−391.99
	BaZrO₃	UCl₃ + 1.5BaZrO₃ = 1.5BaCl₂ + 1.5ZrO₂ + 0.75UO₂ + 0.25U	−206.83

RE	La₂O₃	UCl₃ + 0.5La₂O₃ = LaCl₃ + 0.75UO₂ + 0.25U	−111.12
	CeO₂	UCl₃ + CeO₂ = CeCl₃ + UO₂	−193.09
	Pr₂O₃	UCl₃ + 0.5Pr₂O₃ = PrCl₃ + 0.75UO₂ + 0.25U	−89.665
	Nd₂O₃	UCl₃ + 0.5Nd₂O₃ = NdCl₃ + 0.75UO₂ + 0.25U	−73.181
	Sm₂O₃	UCl₃ + 0.5Sm₂O₃ = SmCl₃ + 0.75UO₂ + 0.25U	−50.584
	Eu₂O₃	UCl₃ + 0.5Eu₂O₃ = EuCl₃ + 0.75UO₂ + 0.25U	−40.697
	Gd₂O₃	UCl₃ + 0.5Gd₂O₃ = GdCl₃ + 0.75UO₂ + 0.25U	−43.406
	Y₂O₃	UCl₃ + 0.5Y₂O₃ = YCl₃ + 0.75UO₂ + 0.25U	+7.316

Others	ZrO₂	UCl₃ + 0.75ZrO₂ = 0.75ZrCl₄ + 0.75UO₂ + 0.25U	+134.21
	MoO₂	UCl₃ + MoO₂ = MoCl₃ + UO₂	−82.432
	Rh₂O₃	UCl₃ + 0.5Rh₂O₃ = RhCl₃ + 0.75UO₂ + 0.25U	−36.104