SUPPORTED LIQUID MEMBRANE WITH STRIP DISPERSION FOR RECOVERING INDIUM FROM ETCHING SOLUTION OF LCD INDUSTRY: INFLUENCE OF FACTORS ON PERFORMANCE

Authors

  • Ngan Thi Tuyet Dang Hanoi University of Science and Technology
  • Kien Trung Tran Hanoi University of Science and Technology
  • Da-Ming Wang National Taiwan University

DOI:

https://doi.org/10.15625/2525-2518/59/1/15569

Keywords:

liquid membrane, indium recovery, etching solution, D2EHPA, some important factors

Abstract

Supported liquid membrane with strip dispersion (SLMSD) is a promising process for metal recovery from e-waste or waste streams because of many advantages such as the ability to combine extraction and stripping into one single step and thus have non-equilibrium mass transfer characteristics and maximum driving force. This paper investigated the effect of important factors on SLMSD performance to recover indium from etching solution such as: pH of feed solution, extractant (Di-(2-ethylhexyl) phosphoric acid (D2EHPA)) concentration, oxalic acid concentration. It was found that 99.5 % In3+ was removed from feed solution in about 20 minutes with high concentration factor (4.5) under suitable conditions (pH 1; 0.6M Di-(2-ethylhexyl) phosphoric acid (D2EHPA), 2 wt% oxalic acid).

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Author Biography

Ngan Thi Tuyet Dang, Hanoi University of Science and Technology

Ngan Thi Tuyet Dang, Msc., is a lecturer in School of Chemical Engineering, Hanoi University of Science and Technology. She is working on water and wastewater treatment using membrane technology.

References

Porter MC. Handbook of Industrial Membrane Technology. Noyes Publications; 1990.

Ho WSW, Poddar TK. New Membrane Technology for Removal and Recovery of Chromium from Waste Water. Environ Prog. 2001;20(1):44-52.

Yang J, Ekberg C, Retegan T. Optimization of Indium Recovery and Separation from LCD Waste by Solvent Extraction with Bis ( 2-ethylhexyl ) Phosphate ( D2EHPA ). 2014;2014.

Yen F, Chang T, Laohaprapanon S. Recovery of Indium from LCD waste by solvent extraction and the SLMSD using D2EHPA as the extractant. Solvent Extr Res Dev Japan. 2016;23(1):63-73.

Tsai H, Tsai T. Extraction Equilibrium of Indium(III) from Nitric Acid Solutions by Di(2-ethylhexyl)phosphoric Acid Dissolved in Kerosene. Molecules. 2012;17:408-419. DOI:10.3390/molecules17010408. doi:10.3390/molecules17010408

Sato T, Sato K. Liquid-liquid extraction of indium ( III ) from aqueous acid solutions by acid organophosphorus compounds. Hydrometallurgy. 1992;30:367-383.

Sato T. The extraction of Indium ( III ), Lanthanum ( III) and Bismuth (III) from sulphuric acid solutions by Di-(2-ethylhexyl)-phosphoric acid. I inorg nucl Chem. 1975;3(Ill):1485-1488.

Tsai T, Wu Y. Organic Acid Mixing to Improve ITO Film Etching in Flat Panel Display Manufacturing. J Electrochem Soc. 2006;153(1):C86-C90. doi:10.1149/1.2135221

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Published

2021-02-08

Issue

Section

Environment