SEEU Review vol. 5 Nr. 2 (pdf) - South East European University

SEEU Review Volume 5, No. 2, 2009
These extractions have been derived from aqueous solutions of HCl with
c=2, 4 and 6 mol dm -3 , and in the presence of salts of KCl, KI and
CH 3 COONa, which are prepared with the different concentrations.
Extraction of Fe, Cu and Ni was done in the separation funnel of 150 cm 3 .
The problem of analyzing the elements in their organic phase has not been
taken in to consideration here, because according to similar research (of
aqueous phase) percentage of elements in their organic phase can be
measured with accuracy.
This is how we can determine the percentage of the elements in the
aqueous phase in comparison with the initial amount of the elements during
the extraction with the organic solutions.
The separation of the elements is done with organic solution resulting
from multi element extraction from solutions of HCl with c=2, 4 and 6 mol
dm -3 and in the presence of salts of KCl, KI and CH 3 COONa, prepared with
the different concentrations.
Extraction of Fe, Cu and Ni with N,N-Dioctyl-1-Octanamine
The experimental results achieved are showed in the table through curves,
hereby each curve presented is based in three experimental dots.
Table 2. Extraction of elements with the help of organic solution of
N,N-Dioctyl-1-Octanamine in presents of KCl
c(HCl)/mol dm -3 γ(KCl)/g dm -3 %
Fe Cu Ni
2 50 100 34.1 4.1
4 50 100 65.2 2.2
6 50 100 94.2 4.0
2 75 100 38.5 -
4 75 100 66.3 -
6 75 100 92.1 4.2
2 100 100 44.2 -
4 100 100 70.5 -
6 100 100 94.4 0.5
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