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Issue
Korean Journal of Chemical Engineering,
Vol.19, No.1, 93-98, 2002
Extraction of Strontium Ion from Sea Water by Contained Liquid Membrane Permeator
Jeong SK, Ju CS
To develop a liquid membrane permeator that extracts strontium ion from sea water effectively and continuously, we investigated the extraction of strontium ion from artificial and natural sea water in a contained liquid membrane permeator. The permeator consists of a liquid membrane and two cells for aqueous solutions. The liquid membrane containing D2EHPA(di-2-ethylhexyl-phosphoric acid) and DCH18C6(dicyclohexano-18-crown-6) is trapped between two hydrophobic microporous polyethylene films and separates sea water and the 0.2M H2SO4 aqueous stripping solution. The effects of various operating parameters on the extraction of strontium ion were experimentally examined. The extractant of DCH18C6 - D2EHPA mixture in kerosene had a synergistic effect on the extraction of strontium ion. The permeator extracted strontium ion from sea water effectively and continuously with long membrane lifetime.
Keywords: Contained Liquid Membrane; Strontium Ion; Sea Water
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[Cited By]
  1. Prakorn R, Ura P, Korean Journal of Chemical Engineering, 20(4), 724, 2003
  2. Park HJ, Chung TS, Korean Journal of Chemical Engineering, 20(4), 731, 2003
  3. Weerawat P, Nattaphol V, Ura P, Korean Journal of Chemical Engineering, 20(6), 1092, 2003
  4. Harvianto GR, Jeong SG, Ju CS, Korean Journal of Chemical Engineering, 31(5), 828, 2014
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