Methyltrioxorhenium: a new catalyst for the activation of hydrogen peroxide to the oxidation of lignin and lignin model compounds.
The oxidative degradation of lignin under totally chlorine free conditions is one of the most relevant targets for the design of environmental friendly pulping and bleaching industrial processes. Methyltrioxorhenium was found a powerful and promising catalyst for the oxidation of both phenolic and non-phenolic lignin model compounds by use of hydrogen peroxide as primary oxidant. Three different technical lignins, hydrolytic sugar cane lignin (SCL), red spruce kraft lignin (RSL) and a hardwood organosolvent lignin (OSL), that are representative examples of widely diffused para-hydroxyphenyl-guaiacyl, guaiacyl and guaiacyl-syringyl lignins, were also extensively degraded under similar experimental conditions.
Crestini
Claudia
C
Dipartimento di Scienze e Tecnologie Chimiche, Università di Tor Vergata, Via della ricerca Scientifica, 00133 Rome, Italy. crestini@uniroma2.it <crestini@uniroma2.it>
Pro
Paola
P
Neri
Veronica
V
Saladino
Raffaele
R
D002384:Catalysis; D006861:Hydrogen Peroxide / Q000737:chemistry*; D008031:Lignin / Q000138:chemical synthesis* / Q000737:chemistry; D015394:Molecular Structure; D009942:Organometallic Compounds / Q000737:chemistry*; D010084:Oxidation-Reduction
D009942:Organometallic Compounds; C411866:methyltrioxorhenium VII; D008031:Lignin; D006861:Hydrogen Peroxide