This includes dissolving the flotation concentrate in sulphuric acid, followed by solvent extraction using a suitable
extractant such as TEHPA, Alamine336, TBP or Cyanex 923.
EDTA, contained in the Mehlich-III solution (Mehlich 1984), is an effective
extractant for microelement-humic substance complexes, which outperforms other
extractants for SOM fractions (Gerzabek et al.
Sales of MTBE for application in reformulated gasoline will remain considerably larger than those in solvent and
extractant combined.
The desired species so extracted were found to have a stoichiometric composition as UO2(NO3)2.DOHA and UO2(NO3)2.2DOHA at lower and higher concentration of
extractant respectively.
Reduction of relationship through the increase of the quantity of
extractant may allow a better effectiveness in the neutralization of acids present in the soil (SILVA et al., 2008).
Significant correlations have been found between the
extractant except for Bray whi ch showed non - significant correlation.
An effective
extractant with high selectivity for metal ions is in high demand for analytical applications, recycling of resources, and waste treatment purposes.
In recent years, there are many researches about ionic liquid as an
extractant for dye from various samples such as Congo red, Sudan dye, methyl orange, and so on [2-4], but the application of ionic liquids is restrained due to its high cost and hard to recycle [5, 6].
In this paper, 2-ethyl-1,3-hexanediol was chosen as the
extractant to extract boron from underground brine.