RT Journal Article
T1 Biomimetic vanadate and molybdate systems for oxidative upgrading of iono- and organosolv hard-and softwood lignins
A1 Penin Sanchez, Lucía
A1 Gigli, Matteo
A1 Sabuzi, Federica
A1 Santos Reyes, Valentín
A1 Galloni, Pierluca
A1 Conte, Valeria
A1 Parajo Liñares, Juan Carlos
A1 Lange, Heiko
A1 Crestini, Claudia
K1 3303.03 Procesos Químicos
K1 3303.01 Tecnología de la Catálisis
K1 3312.13 Tecnología de la Madera
AB Recently reported acetosolv soft- and hardwood lignins as well as ionosolv soft- and hardwood lignins were transformed into monomeric aromatic compounds using either a vanadate or a molybdate-based catalyst system. Monomers were generated with remarkable, catalyst-dependent selectivity and high depolymerisation yields via oxidative exo- and endo-depolymerisation processes. Using the vanadate–hydrogen peroxide system on acetosolv pine lignin, vanillin and isovanillin were produced as main products with depolymerisation yields of 31%. Using the molybdate system on acetosolv and ionosolv lignin, vanillic acid was the practically exclusive product, with depolymerisation yields of up to 72%. Similar selectivities, albeit with lower depolymerisation yields of around 50% under standardised conditions, were obtained for eucalyptus acetosolv lignin, producing vanillin and syringaldehyde or vanillic acid as products, by using the vanadate- or the molybdate-based systems respectively.
PB Processes
SN 22279717
YR 2020
FD 2020-09-16
LK http://hdl.handle.net/11093/1546
UL http://hdl.handle.net/11093/1546
LA eng
NO Processes, 8(9): 1161 (2020)
NO MInisterio de Economía y Competitividad | Ref. CTQ2017-82962-R
DS Investigo
RD 11-dic-2024