Application of Propylene Carbonate to Liquid-Liquid Extraction of Metal Ion

Abstract

Abstract4-Methyl-1,3-dioxolan-2-one is well known solvent in the name of propylene carbonate (PC) and has good solvent properties, e.g. low toxicity, less flammable, high density and less viscous, nevertheless the application of PC in solvent extraction has only been considered in a few cases. Then, availability of PC to solvent extraction was examined by applying it to the extraction of three different kinds of analyte, hydrophilic neutral species, a chelate and an ion association complex. At first, 6 water miscible solvents, i.e., methanol, isopropanol, tert-butanol, acetone, acetonitrile and tetrahydrofuran were arbitrarily selected as hydrophilic neutral species and the extractability of PC and cyclohexane for these solvents were examined. Dioctyldiglycolamic acid (Abbreviate as DODGAA) complex of lanthanide (Ln 3+ ) was chosen as an example of chelate extraction and was extracted with PC and n-hexane, respectively. Ion association extraction was investigated with the extractability of bis(1,10-phenanthroline) iron(II) complex (Fe(phen) 3 2+ 2X -) by using PC, toluene and nitrobenzene. In all cases, PC showed the significant extractability compared to common solvents.

Application of GSK’s Model in Leather Making: Quantification of the Environmental Efficiency of a Green Solvent Based Deliming Process

“…However, propylene glycol generated during the decomposition of PC is relatively nontoxic . Besides this, PC is an odorless and colorless solvent with a high boiling point, low vapor pressure, and high chemical stability, is noncorrosive, and has a low viscosity and very low coefficient of friction. , The superior properties and generation of ecologically acceptable byproducts on decomposition have stimulated the exploration of PC for various industrial applications such as (i) a carrier medium in ointment and cosmetic products, (ii) a plasticizer in polymer electrolyte system, , (iii) an alternative solvent for extraction, , electrochemistry, , electron paramagnetic resonance spectroscopy, organic synthesis and liquid enzyme formulation, , (iv) a CO 2 and H 2 S gas absorber, (v) a nail polish remover, , (vi) a polar additive for clay gellants, and (vii) a textile dye carrier. Recently, Sathish and coauthors developed a CSIR-CLRI solvent selection tool using GSK’s solvent selection guide as a basic database and identified PC as potential green solvent in leather making .…”

Solvent Extraction of Gold(III) with Diethyl Carbonate

“…Cyclic and open-chain carbonates have been described in the literature as suitable extractants for various metals, including molybdenum, , iron, − cobalt, uranium, and heavy and noble metals. ,, Propylene carbonate has also been investigated as a diluent for the extraction of indium and gallium by Kelex 100 …”