Development of Palm Oil-Based Synergist Liquid Membrane Formulation for Silver Recovery from Aqueous Solution

Document Type: SI: ISET2019

Authors

1 Department of Chemical Engineering, School of Chemical and Energy Engineering, Faculty of Engineering, Universiti Teknologi Malaysia, Johor, Malaysia

2 Department of chemical engineering, School of Chemical and Energy Engineering, Faculty of Engineering, Universiti Teknologi Malaysia, Johor, Malaysia.

3 Department of chemical engineering, School of Chemical and Energy Engineering, Faculty of Engineering, Universiti Teknologi Malaysia, Johor, Malaysia

Abstract

In this work, the palm oil-based synergist formulation containing a mixture of carriers for liquid membrane application of silver recovery from aqueous solution was studied. Several types of acidic carrier mixtures were investigated via liquid-liquid extraction procedure to increase the extraction performance. The results indicated that palm cooking is a promising vegetable oil-based green diluent in the formulation. A carrier mixture of 0.2 mM Cyanex 302 and 0.3 mM Cyanex 272 demonstrated synergism during the extraction process. It was found that more than 98% of silver ions from a very dilute solution was effectively extracted with a synergistic coefficient of 62.7. According to the individual and carrier mixture results, it can be deduced that Cyanex 272 and Cyanex 302 served as a carrier and synergist, respectively. Therefore, the developed liquid membrane formulation showed great prospect in silver recovery from the liquid waste solution.

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Articles in Press, Corrected Proof
Available Online from 11 June 2020
  • Receive Date: 16 January 2020
  • Revise Date: 12 May 2020
  • Accept Date: 11 June 2020