Synthesis and Screening of t-Bu-CyMe4-BTBP, and Comparison with CyMe4-BTBP

• The effect of adding a t-butyl group to the core molecule of CyMe4-BTBP, with the aim of improving solubility in organic diluents, has been studied with regard to the extraction of Am(III) and Eu(III) from HNO3. Synthesis of t-Bu-CyMe4-BTBP is described in detail. Metal nitrates are extracted from nitric acid in the form of 1:2 complexes, M(NO3)(3)(BTBP)(2). Whether in 1-octanol, kerosene, or cyclohexanone diluents, t-Bu-CyMe4-BTBP extracts with larger distribution ratios but with slower kinetics than CyMe4-BTBP. The general trends previously observed for CyMe4-BTBP regarding the diluent and modifier influence were also found for t-Bu-CyMe4-BTBP.

Ämnesord

NATURVETENSKAP  -- Kemi -- Analytisk kemi (hsv//swe)

NATURAL SCIENCES  -- Chemical Sciences -- Analytical Chemistry (hsv//eng)

Nyckelord

solubility

DONOR

ACTINIDES

AMERICIUM(III)

solvent extraction

BTBP

LIGANDS

SOLVENT

EXTRACTION

QUADRIDENTATE

C5-BTBP

kinetics

LANTHANIDES

actinides

lanthanides

ACTINIDE(III)/LANTHANIDE(III) SEPARATION

RADIOLYTIC STABILITY

side group

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ref (ämneskategori)