Preparation of alpha-sources of U(VI) and Th(IV) by the electrodeposition technique in the presence of Ca2+ and some trivalent metals

A new method for the electrodeposition of uranium and thorium from an aqueous/ethanol media in the presence of Ca(II) and some trivalent metals is described. The deposition is carried out at a constant weak voltage of 30 V and starting current intensity of 3 A. The deposition yields of uranium is in...

Full description

Saved in:
Bibliographic Details
Published in:Applied radiation and isotopes 2001-08, Vol.55 (2), p.167-174
Main Authors: Zarki, R, Elyahyaoui, A, Chiadli, A
Format: Article
Language:English
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:A new method for the electrodeposition of uranium and thorium from an aqueous/ethanol media in the presence of Ca(II) and some trivalent metals is described. The deposition is carried out at a constant weak voltage of 30 V and starting current intensity of 3 A. The deposition yields of uranium is investigated as a function of the amounts of various carriers and impurities such as Fe, Al, Bi, La and Ca as well as acetic, nitric and hydrochloric acids. All solutions containing up to 900 ppm of Ca2+ and 100-150 microg of the foreign ions namely: Fe, Bi or La can be used with no chemical separation. Uranium and thorium recoveries between 80 and 96% are obtained and the resolution is typically 25-40 keV. Procedure without chemical purification is proposed for a selective electrodeposition of U(VI) and Th(IV) from one another and from calcium.
ISSN:0969-8043
DOI:10.1016/S0969-8043(01)00053-7