Laboratory Studies of the Pentaether Process for the Recovery and Decontamination of Uranium Page: 4
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The feasibility of the use of pentaether (dlbutoxytetraotfcylenoglycol)
as a solvent for the recovery and decontamination of uranium has been re*
ported froa this laboratory^and the conclusions of the experimental
» work reported here hare been anticipated In a report of recent origin by
two of the above authors* Therefore, the work reported herein bears
largely on the question of the reoovery and decontamination of uranium
, using pentaether as the solvent extraction agent in a continuous flow
system• Of prime importance is the question of purity of the pentaether
and its stability) consequently, this was the first point of attack.
In order to work with dissolver solution and
to gain the maximum amount of Information expeditiously;, it was advents-
geous (and necessary) to work on a small laboratory scale using a
countercurrent batch method for the simulation of continuous contacting
equipment* It is believed that this method of attack, in conjunction
with supporting laboratory studies of continuous contacting equipment,
has yielded sufficient data to support the conclusions drawn in the recent
evaluation report on the subject of this process*
PHYSICAL-CHEMICAL PROPERTIES OF PENTAETHER
Coamercial pentaether was obtained from Carbon and Carbide Chemical
Company as a light yellow-brown, viscous, high-boiling liquid which de-
composes when heated at atmospherlo pressure* It has a purity of abcut
80-90 percent, the main Impurities being monobutoxytetraethyleneglycol
and tetraethyleneglycol* It Is thought to be produced as a by-product of
the carbitols and cellosolves*
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Hicks, T. E.; Mayer, P. C. & Crandall, Howard William. Laboratory Studies of the Pentaether Process for the Recovery and Decontamination of Uranium, report, February 16, 1951; Oak Ridge, Tennessee. (https://digital.library.unt.edu/ark:/67531/metadc173134/m1/3/: accessed July 21, 2019), University of North Texas Libraries, Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.