P. Behera et al., SYNERGISTIC EXTRACTION OF URANIUM(VI) BY MIXTURES OF METHYLTRIOCTYL AMMONIUM-CHLORIDE AND VARIOUS DONORS FROM HYDROCHLORIC-ACID SOLUTION, Indian journal of chemistry. Sect. A: Inorganic, physical, theoretical & analytical, 33(1), 1994, pp. 80-82
Extraction of uranium(VI) by methyltrioctyl ammonium chloride (MTOAC)
is quantitative above approximately 2 MHCl. Synergistic effect is obse
rved when the extraction is carried out with a mixture of MTOAC and tr
iisodecylamine (Alamine 310)/tri-n-butyl phosphate (TBP)/di-n-pentyl s
ulphoxide (DPSO). The presence of Cl- or SCN- ions makes the extractio
n quantitative even at very low acidity (approximately 0.1 M). Extract
ion with a mixture of MTOAC and bis(2,4,4-trimethylpentyl) dithiophosp
hinic acid (Cyanex 301) is quantitative in the acidity range 0.8-1 M w
ith marked synergism.