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 language | English |
|---|---|
| Pages (from-to) | 225-235 |
| Number of pages | 11 |
| Journal | Journal of Membrane Science |
| Volume | 70 |
| Issue number | 2-3 |
| DOIs | |
| Publication status | Published - 1992 Jun 17 |
Bibliographical note
Funding Information:The authors wish to thank Mr. Chang-Ki Hur for his assistance m the experimental work. This work was supported by the Ministry of Science and Technology, South Korea.
Keywords
- amino acid concentration
- cationic extractant
- demulsification
- liquid emulsion membrane
- membrane stability
ASJC Scopus subject areas
- Biochemistry
- General Materials Science
- Physical and Theoretical Chemistry
- Filtration and Separation