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Panarat Rattanaphanee
School of Chemical Engineering, Institute of Engineering, Suranaree University of Technology, Nakhon Ratchasima, Thailand
Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry

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Kinetic Study of Aluminum – Alginate Catalyzed Esterification of Lactic Acid with 1-Butanol Kanungnit Chawong; Chitkamon Poncharee; Boonpradab Daengpradab; Panarat Rattanaphanee
ASEAN Journal of Chemical Engineering Vol 17, No 1 (2017)
Publisher : Department of Chemical Engineering, Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1030.458 KB) | DOI: 10.22146/ajche.49562

Abstract

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.
Co-Authors Boonpradab Daengpradab Chitkamon Poncharee Kanungnit Chawong