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1. 发明授权

US4172114A Method for purifying plutonium hexafluoride 失效
标题翻译：净化六氟化钚的方法
公开(公告)号：US4172114A
公开(公告)日：1979-10-23
申请号：US827257
申请日：1977-08-24
申请人： Takeshi Tsujino , Mitsuhiro Nishimura , Kazunobu Yamazaki , Susumu Sugikawa
发明人： Takeshi Tsujino , Mitsuhiro Nishimura , Kazunobu Yamazaki , Susumu Sugikawa
IPC分类号： B01D15/00 , B01D53/02 , B01J20/04 , C01G56/00 , G21C19/44
CPC分类号： C01G56/006 , B01D53/02
摘要： An effective method for purifying plutonium hexafluoride for the reprocessing of the spent nuclear fuel or for the recovery of fuel plutonium from the scrap by fluoride-volatility with high decontamination factors is presented using a selective adsorption of the fission products fluorides by letting the gas mixture flow through a layer of an adsorbent consisting of one or more of the specified compounds selected from hexafluoro sodium aluminate, zinc fluoride, nickel fluoride and ferric fluoride at an elevated temperature. The principle of the purification method is based on the fact that the fluorides of the fission products are easily adsorbed by the adsorbent but little plutonium hexafluoride is adsorbed. The fluorides of the fission products are easily removed from the adsorbent by heating and the recycling use of the adsorbent is possible.
摘要翻译：提出了一种用于净化六氟化钚用于废核燃料后处理或通过具有高去污因子的氟化物挥发性从废料中回收燃料钚的有效方法，其通过使气体混合物流动而选择性吸附裂变产物氟化物通过在一个升高的温度下由一种或多种选自六氟铝酸钠，氟化锌，氟化镍和氟化铁的指定化合物组成的吸附剂层。纯化方法的原理是基于裂变产物的氟化物容易被吸附剂吸附而吸附六氟化钚的事实。裂变产物的氟化物通过加热容易地从吸附剂中除去，并且吸附剂的再循环利用是可能的。

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