Conversion of veratrole and sodium lignosulfonate in the sub- and supercritical water

Conversion of veratrole and sodium lignosulfonate in the sub- and supercritical water Full article

Journal

Russian Journal of Physical Chemistry B
ISSN: 1990-7923 , E-ISSN: 1990-7931

Output data

Year: 2011, Volume: 5, Number: 7, Pages: 1069-1075 Pages count : 7 DOI: 10.1134/s1990793111070037

Authors

Khudoshin A.G. ¹ , Lunin V.V. ¹ , Bogdan V.I. ²

Affiliations

1	Faculty of Chemistry, Moscow State University, Moscow, Russia
2	Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Moscow, Russia

The conversion of veratrole and sodium lignosulfonate (SLS) in sub-and supercritical water at temperatures of 200–430°C, pressure of 220 atm, and residence time in the reactor of 2.5–10 min is studied. The soluble products of SLS depolymerization are analyzed by HPLC and GC-MS. Thermogravimetric, elemental, IR, and 1H NMR analyses of the insoluble products of the conversion of SLS in supercritical water (SCW) are performed. It is demonstrated that the methoxyaryl ether bonds and aromatic structures do not undergo destruction in SCW. The formation of the insoluble precipitate is explained by decarboxylation and desulfonation of lignin polymer fragments.

Khudoshin A.G. , Lunin V.V. , Bogdan V.I.
Conversion of veratrole and sodium lignosulfonate in the sub- and supercritical water
Russian Journal of Physical Chemistry B. 2011. V.5. N7. P.1069-1075. DOI: 10.1134/s1990793111070037 WOS Scopus OpenAlex

≡ Web of science:	WOS:000299510400003
≡ Scopus:	2-s2.0-84856439472
≡ OpenAlex:	W2016623900