Welcome to Chemistry and Industry of Forest Products,

›› 2006, Vol. 26 ›› Issue (1): 121-123.

• 研究简报 • Previous Articles     Next Articles

Primary Study on Low-molecular-mass Products from Electro-oxidation of Lignosulfonate

YANG Wei-dong, Ding Ming, ZHANG Jin-ping, WANG Jing-wen   

  1. The Research Institute of Subtropical Forestry, CAF, Fuyang 311400, China
  • Received:2004-04-22 Revised:1900-01-01 Online:2006-03-30 Published:2006-03-30

Abstract: Electroxidation of lignosulfonate in aqueous alkaline solution using lead dioxide electrode was carried out at temperature 25℃, electric current density 50-70 mA/cm2 and voltage 2.0-2.5 V. Degradation products were extracted from the aqueous solution and analysed through HPLC. Results show that lignosulfonate is cleaved electrolytically into 6 low-molecular-mass products, namely: vanillin, springaldehyde, syringic acid, 4-hydroxybenzaldehyde, acetophenone and benzoic acid.

Key words: lignin, lignosulfonates, electro-oxidation

CLC Number: