The behavior of technetium in technetium-scrubbing stage of PUREX process

✍ Scribed by Fang Liu, Wei-fang Zheng, Yu Zhang, Hui Wang…

• Book ID: 120741674
• Publisher: Springer
• Year: 2012
• Tongue: English
• Weight: 258 KB
• Volume: 295
• Category: Article
• ISSN: 1588-2780
• DOI: 10.1007/s10967-012-2205-0

✦ Synopsis

Technetium decontamination factor as a function of the acidity, flow ratio, scrubbing stage number was investigated by counter-current cascade experiments or mixer-settler batch tests. Results showed that the acidity of the scrubbing acid has little influence on the decontamination factor of technetium when the acidity was kept in the range of 4.5-6 M. The most effective method to increase the decontamination factor is to lower the feed-toacid flow ratio. Keeping other condition same the factor increased to 10.3 from 3.1 when feed-to-acid ratio changed to 4 from 5.6. The loss of uranium and plutonium can be recovered through a re-extraction technology.