KINETIC STUDY OF SYNTHESIS REACTION OF LIGNOSULFONATE USING ISOTHERMAL DIFFERENTIAL SCANNING CALORIMETRY METHOD

Giang Truong Nguyen, Kien Trung Tran, Thiem Van Pham, Hoa Thi Nguyen

Abstract


The kinetics of lignin methylsulfonation were studied in solution by using differential scanning calorimetry (DSC) techniques under an isothermal program, at 55, 65, 75 and 85°C, respectively. It was found that activation energy, Eα =  41.26 kJ/mol, and preexponential factor A was 1.85×103 s-1.


Keywords


Lignin, lignosulfonat, methylsulfonation, isothermal DSC

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Published by Vietnam Academy of Science and Technology