Summary
-
1.
Technical hydrolysis lignin is easily chlorinated at 20° by solutions of chlorine in carbon tetrachloride or by chlorine water. When 25–27% of chlorine is introduced, the latter is quantitatively removed from the solution by the lignin.
-
2.
The chlorine content of products chlorinated in carbon tetrachloide is very close to that required by calculation for the substitution reaction.
-
3.
When lignin is chlorinated both in carbon tetrachloride and in water at 20° in the absence of excess chlorine and catalysts, the number of hydroxyl groups in the lignin remains unchanged. These results do not agree with those obtained by American authors who consider that hydroxyl groups are removed from lignin by halogenation.
-
4.
The content of merthoxyl goups in lignin is reduced on chlorination even under mild condition. The reduction is expecially marked when chlorination is carried out by chlorine water.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
Literature cited
C. Cross, E. Bevan, J. Chem. Soc., 38, 666 (1880).
K. Freudenberg, W. Boltz, C. Nieman, Ber. 62, 1154 (1939).
P. Sarkar, Ind. Chem. Soc. 11, 777 (1934).
H. Hibbert, C. Sankey, Can. J. Research, 4, 110 (1931).
E. Harris, E. Scherrer, B. Mitchell. J. Am. Chem. Soc., 56, 889 (1934).
E. Harris, J. Am. Chem. Soc. 58, 894 (1936).
K. Kratzl, H. Bleckmann, Monatsh, 76, 185 (1947); W. Kratzl, H. Bleckmann, Osterberger, Monatsh. 80, 271 (1949).
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Shorygina, N.N., Kolotova, L.I. The chlorination of hydrolysis lignin. Russ Chem Bull 2, 505–508 (1953). https://doi.org/10.1007/BF01171529
Received:
Issue Date:
DOI: https://doi.org/10.1007/BF01171529