Journal of Siberian Federal University. Chemistry / Composition of Products of Birch Wood Delignification by Hydrogen Peroxide in the Medium “Acetic Acid – Water – Catalyst TiO2”

Full text (.pdf)
Issue
Journal of Siberian Federal University. Chemistry. 2015 8 (3)
Authors
Garyntseva, Natalia V.; Sudakova, Irina G.; Kondrasenko, Alexander A.; Skripnikov, Andrey M.; Kuznetsov, Boris N.; Taran, Oxana P.; Agabekov, Vladimir E.
Contact information
Garyntseva, Natalia V.:Institute of Chemistry and Chemical Technology SB RAS 50 /24 Akademgorodok, Krasnoyarsk, 660049, Russia; E-mail: ; Sudakova, Irina G.:Institute of Chemistry and Chemical Technology SB RAS 50 /24 Akademgorodok, Krasnoyarsk, 660049, Russia; Kondrasenko, Alexander A.:Institute of Chemistry and Chemical Technology SB RAS 50 /24 Akademgorodok, Krasnoyarsk, 660049, Russia; Skripnikov, Andrey M.:Institute of Chemistry and Chemical Technology SB RAS 50 /24 Akademgorodok, Krasnoyarsk, 660049, Russia; Kuznetsov, Boris N.:Institute of Chemistry and Chemical Technology SB RAS 50 /24 Akademgorodok, Krasnoyarsk, 660049, Russia; Taran, Oxana P.:Boreskov Institute of Catalysi 5 Lavrentiev, Novosibirsk, 630090, Russia; Agabekov, Vladimir E.:Institute of Chemistry of New Materials NAS of Belarus 36 Fr. Skaryna Str., Minsk, 220141, Republic of Belarus
Keywords
birch wood; delignification; hydrogen peroxide; acetic acid, TiO2 catalyst; cellulose; soluble products; structure; composition
Abstract

The composition and structure of the solid and soluble products of birch wood delignification by H2O2 in the presence of TiO2 catalyst were studied. The efficient delignification of wood proceeds at 100 °C and atmospheric pressure. The obtained microcrystalline cellulose (yield 48.2% mass.), has crystallinity index 0.81 and contain 93.7% mass. cellulose, 5.5% mass. hemicelluloses and 0.5% mass. lignin. Soluble products of birch wood peroxide delignification are mainly presented by 4-O-methylglucuronoxylan (84% rel.), monosaccharides and they contain very few aromatic compounds

Pages
450-464
Paper at repository of SibFU
https://elib.sfu-kras.ru/handle/2311/19960