公开(公告)号：US5417942A

公开(公告)日：1995-05-23

申请号：US24933

申请日：1993-03-02

Applicant: Jacques Foos ,  Marc Lemaire ,  Alain Guy ,  Micheline Draye ,  Rodolph Chomel ,  Andre Deloge ,  Pierre Doutreluingne

Inventor： Jacques Foos ,  Marc Lemaire ,  Alain Guy ,  Micheline Draye ,  Rodolph Chomel ,  Andre Deloge ,  Pierre Doutreluingne

IPC: G21C19/46 ,  B01D53/02 ,  B01J20/26 ,  C01G55/00 ,  C22B11/02 ,  C22B61/00 ,  G21C19/48 ,  G21F9/02

CPC classification number: C22B61/00 ,  C22B11/02 ,  G21C19/48 ,  Y02W30/884

Abstract: The invention relates to a process fop trapping gaseous ruthenium on polyvinyl pyridine, more particularly usable for recovering radioactive ruthenium from irradiated nuclear fuels.This process consists of contacting a gas containing ruthenium in gaseous form with an adsorbent (11b) constituted by a vinyl pyridine polymer or copolymer for fixing the ruthenium to the latter. The gas can be constituted by yapours from a concentrate of fission products containing ruthenium, which has been heated (at 31) in the presence of an oxidizing agent for volatilizing the ruthenium.

Abstract translation: 本发明涉及一种将气态钌捕获在聚乙烯吡啶上的方法，更特别可用于从辐照的核燃料中回收放射性钌。 该方法包括将含有气态钌气体与由乙烯基吡啶聚合物或共聚物构成的吸附剂（11b）接触，用于将钌固定在其上。 气体可以由来自含有钌的裂变产物的浓缩物的酸组成，其在用于挥发钌的氧化剂的存在下已被加热（31℃）。

公开(公告)号：US5183645A

公开(公告)日：1993-02-02

申请号：US625550

申请日：1990-12-11

Applicant: Jacques Foos ,  Marc Lemaire ,  Alain Guy ,  Vincent Guyon ,  Rodolphe Chomel ,  Andre Deloge ,  Pierre Doutreluigne ,  Henri Le Roy

Inventor： Jacques Foos ,  Marc Lemaire ,  Alain Guy ,  Vincent Guyon ,  Rodolphe Chomel ,  Andre Deloge ,  Pierre Doutreluigne ,  Henri Le Roy

IPC: G21C19/46 ,  G21F9/06

CPC classification number: G21C19/46 ,  G21F9/06 ,  Y02W30/883

Abstract: The invention concerns the recovery of Pu (IV) by using crown compounds.According to the invention, the aqueous solution containing the plutonium (IV) is placed in contact with at least one crown compound, for example DCH 18C6, dissolved in an organic diluting agent, such as benzonitrile. In the case where the solution only contains traces of Pu, it is possible to use a crown compound secured to a solid phase, such as silica.The aqueous solution is a concentrated solution of fission products, an effluent originating from an irradiated nuclear fuel reprocessing installation or a concentrated solution of plutonium with americium.

Abstract translation: 本发明涉及通过使用冠状化合物回收Pu（IV）。 根据本发明，含有钚（IV）的水溶液与至少一种溶解在有机稀释剂如苄腈中的冠状化合物（例如DCH 18C6）接触。 在溶液仅含有痕量Pu的情况下，可以使用固定在固相上的冠状化合物，例如二氧化硅。 水溶液是裂变产物的浓缩溶液，源自辐照的核燃料后处理装置的流出液或钚与钚的浓缩溶液。