"' Perstraction "'is a typical perstraction includes two liquid phases but only other phase includes an extractant.
12.
Diluent is also used as a term in solvent extraction for an inert solvent in which a metal extraction agent ( extractant ) is dissolved.
13.
Figure 1 to the right explains the basic principle, in which the organic extractant E is contained inside the pores of a porous particle.
14.
The extractant is able to diffuse to the edge faster than it can be carried away by the solvent, and the concentration profile is flat.
15.
While during conventional liquid-liquid extraction the solvent and the extractant have to be dispersed, in a SIR setup the affinity resins can be avoided.
16.
However, there are possible drawbacks of SIR technology, such as leaching of the extractant or clogging of a fixed bed by attrition of the particles.
17.
The downcomer was used to contact the electrolyte with air and the droplets of the organic extractant attached themselves to the air bubbles created in the downcomer.
18.
The solute S, which is initially dissolved in the aqueous phase surrounding the SIR particle, physically dissolves in the organic extractant phase during the extraction process.
19.
Some laboratories analyze for all 13 mineral nutrients and a dozen non-essential, potentially toxic minerals utilizing the " universal soil extractant " ( ammonium bicarbonate DTPA ).
20.
This implies selecting a suitable extractant with low water solubility, which is sufficiently retained inside the pores, and selecting mechanically stable particles as a solid support for the extractant.
