Abstract: The
increasing use of rare earth elements in high technology industries needs to be
supported by developmental work for the separation of elements. The research
objective is fiercely attracting and challenging considering the similarity of
bath physical and chemical properties among these elements. The
rate separation of
samarium and yttrium
elements using supported
liquid membrane has been studied. Polytetrafluoroethylene (PTFE) with
pore size of 0.45 µm has been used as the membrane and di(2-ethylhexyl)
phosphate (D2EHP) in hexane has been used as a carrier and nitric acid solution
has been used as receiving phase. Result of experiments showed that the
best separation rate
of samarium and
yttrium elements could
be obtained at
feeding phase of pH
3.0, di(2-ethylhexyl) phosphate
(D2EHP) concentration of
0.3 M, agitation
rate of 700 rpm, agitation time of 2 hours, and
nitric acid and its solution concentrations of 1.0 M and 0.1 M, respectively.
At this condition, separation rates of samarium and yttrium were 64.4 and 67.6%,
respectively.
Keywords:
liquid membrane, rare earth elements, samarium, yttrium
Penulis: Amri
Amin
Kode
Jurnal: jpkimiadd090038
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