Extraction Properties of 6,6′‐Bis‐(5,6‐dipentyl‐[1,2,4]triazin‐3‐yl)‐[2,2′]bipyridinyl (C5‐BTBP)

Extraction of Some Typical Heavy Metals with a Multidentate Soft-Ligand 2,6-Bis(5,6-dipropyl-1,2,4-triazine-3-yl)pyridine

“…The results showed that it had an excellent extraction ability and selectivity for trivalent MAs(III) over all of the REs(III) [5][6][7]. Similar to dialkyl-BTP, some derivatives of bipyridines also exhibited the same extraction properties for MAs(III) and REs(III) [8][9][10]. On the other hand, in terms of the traditional Lewis theory of acid−base reactions, nitrogen in dialkyl-BTP or the derivative of bipyridine has much better coordination ability for the elements of d-block in the periodic table of elements.…”

Development of the Chalmers Grouped Actinide Extraction Process

“…Long-chain alcohols have been thoroughly investigated as diluents for BTBP-type ligands [9,25] as they are among others cheap, easily accessible and relatively stable. 1-Octanol for instance is a standard diluent within solvent extraction.…”

“…Two BTBP type-ligands developed and synthesized to separate trivalent actinides from the fi ssion products, mainly from lanthanides, are 6,6-bis [14,15,25].…”

“…Their solubilities in various diluents differ from one another, and the thermodynamic parameters of the extraction are also different. For C5-BTBP, the entropy change within the system is positive for americium extraction [25], while for a system containing CyMe 4 -BTBP the entropy change is negative [24].…”

Alkylation and pre-organisation of diglycolamide ligands on flexible platforms for nuclear waste treatment

“…248 The heptanol as opposed to nonanol and decanol (DAm ≈ 0.04). 249 In addition, longer chain alcohols also required longer time to reach equilibrium. 250 The The decrease in selectivity with respect to tetrasulfonated bis-triazinyl ligands was attributed to the mesomeric effect of the electron-withdrawing carboxylate groups, which reduced the electron density on the N2 triazine nitrogens (and consequently reduced the covalent character of the M-L bond), as also observed for BTPs.…”