Research progress on oxalic acid decomposition process
In the reprocessing of spent fuel,oxalic acid is often used as the precipitator of plutonium.Because the plutonium oxalate filtrate contains some plutonium,it needs to be returned to the plutonium purification cycle.But the oxalic acid in the filtrate will affect the extraction of plutonium.Therefore,it is necessary to decompose the oxalic acid in the filtrate before returning to the plutonium purification cycle.In the field of civil chemical industry,oxalic acid accumulates as an intermediate in the process of organics degradation,which threatens the water security,so oxalic acid needs to be decomposed in multiple fields.The research progress of oxalic acid decomposition processes summarized used in civil chemical industry and unclear chemical industy was summarized.The oxalic acid decomposition processes and their application situation and characteristics were analyzed,and also the application prospect in the field of spent fuel reprocessing was analyzed according to the process characteristics and application requirements of this field.The process of manganese catalyzed decomposition of oxalic acid used in the field of spent fuel reprocessing was analyzed,their reaction mechanism were summarized,and the problems in engineering application and the future research direction were proposed.
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