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Equilibrium studies on reactive extraction of lactic acid with an amine extractant

โœ Scribed by Ruey-Shin Juang; Ren-Hour Huang

Publisher
Elsevier Science
Year
1997
Tongue
English
Weight
585 KB
Volume
65
Category
Article
ISSN
0923-0467

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โœฆ Synopsis

Equilibrium studies on the extraction of lactic acid from aqueous soIutions with m-n-octylamine (TOA) in xylene were made m the temperature range 293-323 K. The formulation of the extracted species in the organic phase and the corresponding eqmllbrium constants were numerically determined at different temperatures. Also, the apparent thermodynamlc functmns were calculated. Fmally, the effect of a water-insoluble organic acid, dx (2-ethylhexyl)phosphoric acid (D2EHPA), on this extraction was investigated. Synergistic and antagomstlc effects were observed in the presence of D2EHPA, mainly depending on the concentration ratio of D2EHPA to TOA.

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