Separation of homogeneous palladium catalysts from pharmaceutical industry wastewater by using synergistic recovery phase via HFSLM system

Arabian Journal of Chemistry

Ura Pancharoen¹  Suphot Phatanasri²  Niti Sunsandee³ 

[1] Department of Chemical Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok 10330, Thailand;Corresponding author.;Department of Chemical Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok 10330, Thailand;

关键词: Separation;    Palladium catalysts;    Pharmaceutical industry wastewater;    HFSLM;   

DOI  :  

来源: DOAJ

【 摘 要 】

Separation of homogeneous palladium catalysts from pharmaceutical industry wastewater by using synergistic recovery phase via hollow fiber supported liquid membrane (HFSLM) system is presented. HFSLM impregnated with N-methyl-N,N,N-trioctylammonium chloride (Aliquat 336) as the extractant dissolved in cyclohexane. The influence of various chemical parameters, including the concentration of extractant and recovery phases as well as recovery selector concentration in recovery phase, were also studied. A mixture of hydrochloric acid and thiourea was used as synergistic recovery phase. The highest percentage of extraction and recovery was 99.95% and 88.12%, respectively. Furthermore, the kinetics of recovery reaction was studied to provide reaction order, reaction rate constant, equilibrium constant and distribution ratio.

【 授权许可】

Unknown