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1. 发明授权

US5352367A Process for the separation of radioactive iodine compounds by precipitation 失效
标题翻译：通过沉淀分离放射性碘化合物的方法
公开(公告)号：US5352367A
公开(公告)日：1994-10-04
申请号：US970847
申请日：1992-11-03
申请人： Ken-ichi Ochiai , Yoshiro Fuseya
发明人： Ken-ichi Ochiai , Yoshiro Fuseya
IPC分类号： G21F9/06 , G21F9/10 , C02F1/70 , C02F1/58
CPC分类号： G21F9/10 , Y10S210/911
摘要： A process for the separation of radioactive iodine compounds by precipitation is provided. This process comprises adding 0.1 to 3 parts by weight of a reducing agent and an effective amount of silver nitrate to 100 parts by weight of a liquid waste containing radioactive iodine compounds while keeping the liquid waste at a temperature ranging from 20.degree. to 80.degree.C., and stirring the obtained mixture for 0.5 to 72 hours to precipitate the radioactive iodine compounds. Silver nitrate is preferably used in a molar concentration which is 1 to 4 times that of radioactive iodine molecules contained in the liquid waste. By this process, iodates which could not be precipitated by conventional methods can be effectively precipitated and separated to thereby reduce the amount of radioactive iodine discharged to the environment.
摘要翻译：提供了通过沉淀分离放射性碘化合物的方法。该方法包括向100重量份含有放射性碘化合物的废液中加入0.1至3重量份的还原剂和有效量的硝酸银，同时将废液保持在20至80℃的温度并将所得混合物搅拌0.5至72小时以沉淀放射性碘化合物。硝酸银的摩尔浓度优选为废液中含有的放射性碘分子的1〜4倍。通过该方法，可以有效地沉淀和分离通过常规方法不能沉淀的碘酸盐，从而减少排放到环境中的放射性碘的量。

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