Studies on the Extraction of Ti(IV), Ce{IV), Th(IV) and U(VI) with 1-Phenyl-3-methyl-4- benzoyl-pyrazole-5-one from Different Mineral Acids. Separation of Thorium from Titanium, Uranium and Rare Earths

Mirza, Μ. Y.; Nwabue, F. Ik.

doi:10.1524/ract.1980.27.1.47

Cited by 18 publications

(1 citation statement)

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“…Although the character of the extraction curves for zirconium supports the ion exchange mechanism we must suppose that the extraction mechanism for niobium is different while the original composition of the complex Zr(PMBzP) 4 does not change even when the concentration of the reagent is high. Thus the extraction process in the case of zirconium follows a similar mechanism as reported [27] previously for thorium. The determined value of log Κ is 9.18 which is almost equal to the value 9.00-9.15 reported [28][29] with ΗΤΤΑ showing that HPMBzP is as good as ΗΤΤΑ for Zr.…”

Section: Resultssupporting

confidence: 66%

Solvent Extraction of Zr(IV) and Nb(V) with 1-Phenyl-3-methyl-4-benzoyl-pyrazole-5-one and Tri-iso-octylamine from Different Mineral Acid Solutions.

1981

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The extraction of Zr(IV) and Nb(V) from aqueous solutions of mineral acids with 1 % l-phenyl-3-methyl-4-benzoyl-pyrazole-5-one and 5 % tri-iso-octylamine solutions in chloroform has been investigated respectively. The mechanism of extraction and the composition of the extracted species have been suggested and the effect of complexing and salting-out agents also determined. Separation factors of various metals with respect to niobium have been estimated and separation from zirconium and many other elements has been achieved. Procedures are recommended for the separation of 9! Nb from 9 5 Zr 5 Nb mixture as well as from the fission products.

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Section: Resultssupporting

confidence: 66%