Concentration of amino acids by a liquid emulsion membrane with a cationic extractant

Seong Ahn Hong, Hyung Joon Choi, SukWoo Nam

Research output: Contribution to journalArticle

43 Citations (Scopus)

Abstract

The concentration of l-phenylalanine in a liquid emulsion membrane system was studied using a cation complexing agent, di-2-ethylhexyl phosphoric acid (D2EHPA), as a carrier. The membrane formulation, the pH in the internal phase of the acid concentration in the external phase were optimized with respect to concentration performance and membrane stability. It was found that a liquid emulsion membrane obtained by demulsification of the emulsion by an electrostatic coalescer could be reused. Based on the laboratory tests, a continuous multistage process for the concentration of amino acids was proposed (with the development of a commercial process in mind) and its technical feasibility was discussed.

Original languageEnglish
Pages (from-to)225-235
Number of pages11
JournalJournal of Membrane Science
Volume70
Issue number2-3
DOIs
Publication statusPublished - 1992 Jun 17
Externally publishedYes

Fingerprint

Emulsions
emulsions
amino acids
Amino acids
membranes
Membranes
Amino Acids
Liquids
liquids
Demulsification
phenylalanine
phosphoric acid
Phosphoric acid
Static Electricity
Phenylalanine
Cations
Electrostatics
Positive ions
electrostatics
formulations

Keywords

  • amino acid concentration
  • cationic extractant
  • demulsification
  • liquid emulsion membrane
  • membrane stability

ASJC Scopus subject areas

  • Filtration and Separation
  • Polymers and Plastics

Cite this

Concentration of amino acids by a liquid emulsion membrane with a cationic extractant. / Hong, Seong Ahn; Choi, Hyung Joon; Nam, SukWoo.

In: Journal of Membrane Science, Vol. 70, No. 2-3, 17.06.1992, p. 225-235.

Research output: Contribution to journalArticle

Hong, Seong Ahn ; Choi, Hyung Joon ; Nam, SukWoo. / Concentration of amino acids by a liquid emulsion membrane with a cationic extractant. In: Journal of Membrane Science. 1992 ; Vol. 70, No. 2-3. pp. 225-235.
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