Purification of Sn(IV) and recovery of Pd(II) from flexible printed circuit board industry wastewater via HFSLM: Temperature effect investigation

• HFSLM can successfully purify 84% of Sn(IV).
• Maximum percentages of Pd(II) extraction was 100%.
• The Sn(IV) and Pd(II) kinetic reaction order approached 1.0.
• The experimental results were agreed with the mathematical model.

Purification of Sn(IV) and recovery of Pd(II) from flexible printed circuit board (FPCB) industry wastewater via HFSLM has been presented. This work examined the influence of extractant concentration in the liquid membrane, HCl concentration, and flow rates of feed and stripping solutions. The thermodynamic properties were also investigated. The results showed that percentage of recovery of Pd(II) was 100% and purify 84% of Sn(IV) remaining in the feed solution. The Sn(IV) and Pd(II) kinetic reaction orders approached 1.0 and the reaction rate constants were read at 0.00301 and 0.08509 min−1, respectively. The experimental results were agreed with the mathematical model.

Figure optionsDownload as PowerPoint slide