Kinetic Study of Aluminum – Alginate Catalyzed Esterification of Lactic Acid with 1-Butanol
Abstrak
Aluminum-alginate catalyst prepared from aluminum chloride and inexpensive biopolymer sodium alginate is used in lactic acid esterification with 1-butanol. Effect of initial reactant molar ratio, catalyst loading and reaction temperature on the acid conversion is investigated. Maximum conversion of about 81.2% was achieved after 6 h of reaction at 85°C with initial 1-butanol-to-lactic-acid molar ratio of 5 and catalyst loading of 1%w/v. Experimental kinetic data are correlated by pseudo-homogeneous model using UNIFAC to describe non-ideality of the reaction components. Satisfactory agreement between the experimental and calculated data is achieved. The specific rate and equilibrium constant for this reaction are reported.Referensi
1. Chawong, K., Rayabsri, C., and Rattanaphanee, P. (2015). Extraction of lactic acid in mixed solvent electrolyte system containing water, 1-butanol and ammonium sulfate, Int. J. Chem. React. Eng., 13(2): 183.
2. Hassan, S. Z., and Vinjamur, M. (2013). Analysis of sensitivity of equilibrium constant to reaction conditions for esterification of fatty Acids with alcohols, Ind. Eng. Chem. Res., 52 (3), 1205.
3. Qiuyun, Z., Li, H., Wenting, Q., Xiaofang, L., Yuping, Z., Wei, X., and Song, Y. (2013). Solid acid used as highly efficient catalyst for esterification of free fatty acids with alcohols, China Pet. Process Pe., 15(1), 19.
4. Su, C., Yu, C., Chien, I., Ward, J. D. (2013). Plant-wide economic comparison of lactic acid recovery processes by reactive distillation with different alcohols, Ind. Eng. Chem. Res., 52 (32), 11070.
2. Hassan, S. Z., and Vinjamur, M. (2013). Analysis of sensitivity of equilibrium constant to reaction conditions for esterification of fatty Acids with alcohols, Ind. Eng. Chem. Res., 52 (3), 1205.
3. Qiuyun, Z., Li, H., Wenting, Q., Xiaofang, L., Yuping, Z., Wei, X., and Song, Y. (2013). Solid acid used as highly efficient catalyst for esterification of free fatty acids with alcohols, China Pet. Process Pe., 15(1), 19.
4. Su, C., Yu, C., Chien, I., Ward, J. D. (2013). Plant-wide economic comparison of lactic acid recovery processes by reactive distillation with different alcohols, Ind. Eng. Chem. Res., 52 (32), 11070.
Diterbitkan
2017-06-30
Bagaimana cara mengutip
Rattanaphanee, P., Chawong, K., Poncharee, C., & Daengpradab, B. (2017). Kinetic Study of Aluminum – Alginate Catalyzed Esterification of Lactic Acid with 1-Butanol, 17(1), 22-28. Diambil dari https://jurnal.ugm.ac.id/v3/AJChE/article/view/8954
Terbitan
Bagian
Articles