METHOD FOR SEPARATING ACTINIDES AND LANTHANIDES BY LIQUID-LIQUID EXTRACTION USING CALIXARENES

The invention involves a process for separating actinides and lanthanides by liquid-liquid extraction by means of calixarenes.These calixarenes have the formula:with R1 and R2 being alkyl groups or o-nitrophenoxy alkyl groups and R3 and R4 being aryl groups,and they are used in an organic liquid pha...

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Bibliographische Detailangaben
Hauptverfasser:	DELMAU, LAETITIA, EYMARD, SERGE, MUSIGMANN, CHRISTIAN, SIMON, NICOLE, ROUSSIN-BOUCHARD, CHRISTINE, DOZOL, JEAN-FRANCOIS, TOURNOIS, BERNARD, SHIVANYUK, ALEXANDER, BOEHMER, VOLKER, GRUETTNER, CORDULA
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAININGELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN,SULFUR, SELENIUM OR TELLURIUM CHEMISTRY COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSESC01D OR C01F DECONTAMINATION ARRANGEMENTS THEREFOR FERROUS OR NON-FERROUS ALLOYS INORGANIC CHEMISTRY METALLURGY NUCLEAR ENGINEERING NUCLEAR PHYSICS NUCLEAR REACTORS ORGANIC CHEMISTRY PHYSICS PRETREATMENT OF RAW MATERIALS PRODUCTION AND REFINING OF METALS PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULARRADIATION OR PARTICLE BOMBARDMENT TREATING RADIOACTIVELY CONTAMINATED MATERIAL TREATMENT OF ALLOYS OR NON-FERROUS METALS
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Beschreibung
Zusammenfassung:	The invention involves a process for separating actinides and lanthanides by liquid-liquid extraction by means of calixarenes.These calixarenes have the formula:with R1 and R2 being alkyl groups or o-nitrophenoxy alkyl groups and R3 and R4 being aryl groups,and they are used in an organic liquid phase containing an organic diluent. The diluent and the calixarene concentration of the organic phase are chosen so as to ensure an enrichment of the organic phase with the actinide(s) and/or lanthanide(s) to be separated from an aqueous acid or saline solution.