Author/Authors :
Kargari, A. amirkabir university of technology - Department of Chemical Engineering, تهران, ايران , Kaghazchi, T. amirkabir university of technology - Department of Chemical Engineering, تهران, ايران , Sohrabi, M. amirkabir university of technology - Department of Chemical Engineering, تهران, ايران , Soleimani, M. amirkabir university of technology - Department of Chemical Engineering, تهران, ايران
Abstract :
The application of the Taguchi analysis to the experimental results of the extraction of gold (III) ions by a three-phase W/O/W emulsion liquid membrane system has been studied. Experiments were performed using alkaline aqueous sodium sulfite as the internal phase and LK-80 as a novel emulsifier for the first time in emulsion liquid membrane technology. The effects of various operational and compositional parameters were studied. Results showed that nearly all of the Au (III) ions in the aqueous phase were extracted in a few minutes. The analysis determined the effects and contribution of each of the parameters on the extraction efficiency, interaction between the parameters and also the optimum parameters to achieve the best extraction efficiency. The analysis showed that the pH of the external phase with a contribution of 65% is the highest, and the concentration of carrier with a contribution of 2% is the least effective in the final system response.
Keywords :
emulsion liquid membrane , gold , extraction , carrier , Taguchi analysis
