| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a real-time measuring method for a uranium oxide reduction process by metal lithium. <P>SOLUTION: In this measuring method for measuring a conversion rate of metal uranium in a process for manufacturing metal uranium by a reaction of uranium oxide (UO<SB>x</SB>, x≤3) with metal lithium in the presence of a high-temperature molten salt, a measuring instrument is constituted of a constant potential/constant current power source, and an oxidation electrode and a reduction electrode in a reaction vessel, and the conversion rate of the metal uranium is measured using an electrochemical analytical method based on an oxidation reaction by oxide ion dissociated from the lithium oxide obtained as a by-product, and based on a reduction reaction by lithium ion. An progress situation in the reduction process is grasped accurately in real time, and a quick and simple measuring technique is provided, since the oxidation electrode and the reduction electrode are connected to the constant potential/constant current power source to measure directly a conversion rate of the uranium oxide reduction reaction in the high-temperature molten salt. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
