Impregnation of 12-tungstophosphoric acid on tonsil: An effective catalyst for esterification of formic acid with n-butyl alcohol and kinetic modeling

ALTIOKKA M. R., AKBAY E., Him Z.

JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL, cilt.385, ss.18-25, 2014 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 385
  • Basım Tarihi: 2014
  • Doi Numarası: 10.1016/j.molcata.2014.01.011
  • Dergi Adı: JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.18-25
  • Anahtar Kelimeler: 12-tungstophosphoric acid, Tonsil earth, Esterification, Characterization, Eley-Rideal model, ACETIC-ACID, HETEROPOLY ACID, CLAY
  • Anadolu Üniversitesi Adresli: Evet

Özet

Esterification of formic acid with n-butanol was catalyzed by dodecatungstophosphoric acid, H-3 PW12O40 (DTP) impregnated on tonsil earth. A series of catalysts containing 10%, 20% and 30% of DTP on tonsil earth were synthesized. The samples were characterized by FT-IR, XRD, BET and TG. The 20% DTP loaded on tonsil showed the highest catalytic activity among the samples prepared in this study. Therefore the kinetics of esterification of formic acid with butanol has been studied in the presence of 20% DTP/T. The kinetic behavior of the reaction has been found to follow the Eley-Rideal model. (C) 2014 Elsevier B.V. All rights reserved.