Extraction Equilibria of Succinic Acid from Aqueous Solutions by Amberlite LA-2 in Various Diluents

Asci Y. S., Inci I.

JOURNAL OF CHEMICAL AND ENGINEERING DATA, cilt.55, sa.2, ss.847-851, 2010 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 55 Sayı: 2
  • Basım Tarihi: 2010
  • Doi Numarası: 10.1021/je9004917
  • Dergi Adı: JOURNAL OF CHEMICAL AND ENGINEERING DATA
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.847-851
  • İstanbul Üniversitesi Adresli: Evet

Özet

The aim of this study is to investigate the extraction of succinic acid from aqueous solutions by different organic solutions containing Amberlite LA-2, a secondary amine mixture. Extraction equilibria of succinic acid in the solution of Amberlite LA-2 in seven individual diluents at a temperature of 298.15 K have been measured. Using Bizek's approach, two acid-amine complexes, (HO)center dot(R2N) and (HO)center dot(R2N)(2), are assumed to exist in the organic phase in the case of proton-donating diluents, while the complexes (HO)center dot(R2N) and (HO)(2)center dot(R2N)(3) are suggested in the case of nonproton-donating diluents. Important data for the design of separation units have been obtained as a result of batch experiments. These data are distribution coefficients (D), loading factors (Z), extraction efficiencies (E), and overall extraction constants (K-11, K-12, and K-23).

The aim of this study is to investigate the extraction of succinic acid from aqueous solutions by different organic solutions containing Amberlite LA-2, a secondary amine mixture. Extraction equilibria of succinic acid in the solution of Amberlite LA-2 in seven individual diluents at a temperature of 298.15 K have been measured. Using Bizek’s approach, two acid−amine complexes, (HO)·(R2N) and (HO)·(R2N)2, are assumed to exist in the organic phase in the case of proton-donating diluents, while the complexes (HO)·(R2N) and (HO)2·(R2N)3 are suggested in the case of nonproton-donating diluents. Important data for the design of separation units have been obtained as a result of batch experiments. These data are distribution coefficients (D), loading factors (Z), extraction efficiencies (E), and overall extraction constants (K11, K12, and K23).