Fractional factorial design for the optimization of supercritical carbon dioxide extraction of La3+, Ce3+ and Sm3+ ions from a solid matrix using bis(2,4,4-trimethylpentyl)dithiophosphinic acid + tributylphosphate
-
Add time:08/21/2019 Source:sciencedirect.com
In this study, La3+, Ce3+ and Sm3+ were removed from a solid matrix using supercritical CO2 which contained bis(2,4,4-trimethylpentyl)dithiophosphinic acid (Cyanex 301) as a chelating agent and tributylphosphate (TBP) as a co-extractant. The fractional factorial design, 25−1, was employed to optimize the SFE of these ions from spiked filter paper matrices. Effect of five experimental factors: amount of Cyanex 301, flow rate, temperature, pressure and amount of TBP and each factor at two levels on the SFE of these ions were studied and optimized. The results showed that these ions could be quantitatively extracted from the solid matrix at amount of Cyanex 301 of 0.14 g, flow rate of 4 ml min−1, 313 K, 250 bar and amount of TBP of 30 μl. Finally, by employing a regression analysis a model was proposed. Results showed that obtained recoveries are similar to those predicted by the model.
▶ In this study, the fractional factorial design, 25−1, was employed to optimize the SFE of lanthanide ions from spiked filter paper matrices. The results showed that these ions could be quantitatively extracted from the solid matrix at amount of Cyanex 301 of 0.14 g, flow rate of 4 ml min−1, 313 K, 250 bar and amount of TBP of 30 μl. Finally, by employing a regression analysis a model was proposed. Results showed that obtained recoveries are similar to those predicted by the model.
We also recommend Trading Suppliers and Manufacturers of BIS(2,4,4-TRIMETHYLPENTYL)DITHIOPHOSPHINIC ACID (cas 107667-02-7). Pls Click Website Link as below: cas 107667-02-7 suppliers
Prev:Separation and removal of arsenic from metallurgical solutions using bis(2,4,4-trimethylpentyl)dithiophosphinic acid as extractant
Next:Facile synthesis of new nano sorbent for magnetic solid-phase extraction by self assembling of bis-(2,4,4-trimethyl pentyl)-dithiophosphinic acid on Fe3O4@Ag [email protected] nanoparticles: Characterization and application) - 【Back】【Close 】【Print】【Add to favorite 】
- Related Information
- Facile synthesis of new nano sorbent for magnetic solid-phase extraction by self assembling of bis-(2,4,4-trimethyl pentyl)-dithiophosphinic acid on Fe3O4@Ag [email protected] nanoparticles: Characterization and application08/22/2019
- Separation and removal of arsenic from metallurgical solutions using bis(2,4,4-trimethylpentyl)dithiophosphinic acid as extractant08/20/2019
- Separation of Am3+ and Eu3+ using an extraction chromatographic resin containing bis(2,4,4-trimethylpentyl)dithiophosphinic acid as the stationary phase08/19/2019
- Solvent extraction of rare earth elements with mixtures of sec-octylphenoxy acetic acid and bis(2,4,4-trimethylpentyl) dithiophosphinic acid08/18/2019
- Zinc extraction from sulfate media with bis(2,4,4-trimethylpentyl)dithiophosphinic acid in the absence and in the presence of electron donor additives08/17/2019
- Cobalt extraction from sulfate media with bis(2,4,4-trimethylpentyl)dithiophosphinic acid in the presence of electron donor additives08/16/2019
- Redox processes during cobalt extraction with bis(2,4,4-trimethylpentyl)dithiophosphinic acid08/15/2019