Abstract: Applications of heterogeneous catalysts in the preparation of U(Ⅳ) is introduced.The reaction performance, reaction process and reaction mechanism of different catalysts in the reduction of U(Ⅵ) to U(Ⅳ) in different reducing agents and acid media are discussed emphatically.The problems worthy of further study for catalytic reduction of U(Ⅵ) to U(Ⅳ) are put forward.
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