Studies on Alkali Lignin Degradation by Phomolybdic Acid Using Ultrasonic Method
The experiments of alkali lignin degradation were catalyzed by phosphomolybdic acid H3PMo12O40 and ultrasonic in homogeneous and heterogeneous reaction. The reaction time, solvents in the reaction, the concentration of phosphomolybdic acid were discussed by the analysis of active functional groups of degraded lignin. The results showed that contents of functional groups increased after degradation by phosphomolybdic acid in both homogeneous and heterogeneous reaction.
Jinglong Bu, Pengcheng Wang, Liqun Ai, Xiaoming Sang, Yungang Li
F. D. Yu et al., "Studies on Alkali Lignin Degradation by Phomolybdic Acid Using Ultrasonic Method", Advanced Materials Research, Vols. 287-290, pp. 1595-1598, 2011