Use and Evaluation of Lignin as Ion Exchangers

다국어 초록 (Multilingual Abstract)

Modified lignins were prepared. Soda and peroxy lignins were precipitated from black liquor produced from bagasse pulping with soda and peroxyacid pulping process. The precipitated lignins were hydrolyzed using 10% HCl. Different functional groups were also incorporated into lignin by carboxylation and phosphorylation reactions. Moreover crosslinking of these lignins were carried out using epichlorohydrin. Characterization of the modified lignins and lignins derivative were carried out using Infrared spectroscopy. Thermal analysis of these compounds were also carried out using TGA and DTA techniques. Efficiency of sorption of metal ions by the modified lignin was also investigated. It was found that, the peroxylignin and its derivatives show higher efficiency toward metal ions uptake than the soda lignin.

참고문헌 (Reference)

1 Adler, J., 11 : 169-, 1977

2 Boyed, E. G., 69 : 2818-, 1949

3 Nada, A. M. A., 89 : 2950-, 2003

4 Benar, P., 68 (68): 11-, 1999

5 Nada, A. M. A., 42 : 643-, 2003

6 Nada, A. M. A., 29 : 337-, 2000

7 Nada, A. M. A., 46 : 295-, 1994

8 Nada, A. M. A., 37 : 125-, 1992

9 Lehrfeld, J., 61 : 2099-, 1996

10 Schulz, G. V., 158 : 130-, 1941

11 Cotrim, A. R., 313-, 1995

12 Edel, E., 10 : 44-, 1990

13 Nada, A. M. A., 85 : 792-, 2002

14 Nada, A. M. A., 102-, 2006

15 Laszlo, J. A., 52 : 531-, 1994

16 Mackawa, E., 29 : 2289-, 1984

17 Vishalakshi, B., 33 : 365-, 1995

18 Doree, C., "The method of Cellulose Chemistry" Chapman and Hall. Ltd 16-, 1997

19 Michael, K., "Tappi Test Methods"

20 Goncglves, A. R., "Modification of organosolve techinque by oxidation" 255-289, 1995