Equilibrium studies of extraction of levulinic acid by (trioctylamine (TOA) plus ester) solvents

Uslu H., Kirbaslar S. I.

JOURNAL OF CHEMICAL AND ENGINEERING DATA, cilt.53, sa.7, ss.1557-1563, 2008 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 53 Sayı: 7
  • Basım Tarihi: 2008
  • Doi Numarası: 10.1021/je800099a
  • Dergi Adı: JOURNAL OF CHEMICAL AND ENGINEERING DATA
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.1557-1563
  • İstanbul Üniversitesi Adresli: Hayır

Özet

Reactive extraction of levulinic acid has been done at 298.15 K. All experiments are reported on the extraction of levulinic acid by trioctylamine JOA) dissolved in I I different ester solvents (ethyl propionate, dimethyl phthalate, hexyl acetate, cyclohexyl acetate, dimethyl adipate, propyl acetate,, dimethyl glutarate, dimethyl fumarate, diethyl sebacate, and diethyl carbonate), as well as single solvents. Experimental results of batch extraction experiments are calculated and reported as distribution coefficients (K-D= (c) over bar (HA)/C-HA,C-total), loading factors (TT), stoichiometric loading factor (T-s), separation factor (S-f), and extraction efficiency (E). The diethyl carbonate was found to be the most effective solvent with a maximum distribution value of 5.75. Maximum values of possible equilibrium complexation constants for (acid + amine) (1:1) K, and (2:1) K-21 were determined as 3.32 and 32.59 for diethyl carbonate, respectively.