Separation of Tc from Nitric Acid Waste in SNF Reprocessing by Solvent Extraction

摘要

99 Tc is a fission product with a large fission yield(about 6%)in nuclear power reactors,with a half-life of 2.11×105 a.It is widely concerned in the disposal of nuclear fuel radioactive waste because Tc is easy to migrate under geological conditions,thus its geological disposal will bring potential long-term radiological risks to the biosphere.The safe disposal method of99 Tc is partition and transmutation.