Americium/europium separation by synergistic extraction mixtures of bis-tetrazolyl pyridines with chlorinated cobalt dicarbollide

Conference · Tue Jul 01 00:00:00 EDT 2008

OSTI ID:21230356

Smirnov, I V; Babain, V A; Chirkov, A V ^[1]

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1. V.G. Khlopin Radium Institute, St.-Petersburg, 2nd Murinskiy Ave, 28, Russia, 194021 (Russian Federation)

Americium and europium extraction by synergistic mixtures of 2,6-bis(1-aryl-1 H-tetrazol-5-yl)pyridines (ATP) with chlorinated cobalt dicarbollide (CCD) in polar diluents from acidic media was studied. The effect of diluent, composition of aqueous phase, and substituent nature in the aryl ring of ATPs on the extraction efficiency and selectivity of americium and europium separation was investigated. The Am-Eu separation factor was close to 100 at the optimal ratio of ATPs:CCD {approx}1:1 in the synergistic mixture. High resistance of 2,6-bis-aryl-tetrazolyl pyridines to the action of acids and radiolysis was demonstrated. (authors)

• Research Organization: Chemical Sciences Division, Oak Ridge National Laboratory (United States)
• OSTI ID: 21230356
• Country of Publication: United States
• Language: English

Related Subjects

07 ISOTOPE AND RADIATION SOURCES
11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS
AMERICIUM
COBALT COMPOUNDS
EFFICIENCY
EUROPIUM
EXTRACTION
ORGANOMETALLIC COMPOUNDS
PYRIDINES
RADIOLYSIS