Formation and characterization of humic acids from low rank anatolian coals by air oxidation

Energy Sources

Volumn 27, Issue 5, 2005, Pages 423-430

  Erdogan, Sait ^a   Duz, M Zahir ^a   Merdivan, Melek ^b   Hamamci, Candan ^a  

^a DICLE UNIVERSITY   (Turkey)

^b DOKUZ EYLUL UNIVERSITY   (Turkey)

Author keywords

Characterization; Coal; Humic acid

Indexed keywords

FOURIER TRANSFORM INFRARED SPECTROSCOPY; GEOCHEMISTRY; HIGH TEMPERATURE EFFECTS; INFRARED SPECTROSCOPY; ORGANIC ACIDS; OXIDATION;

AIR OXIDATION; ELEMENTAL COMPOSITION; HUMIC ACID; LOW RANK ANATOLIAN COALS;

COAL;

EID: 14544284187     PISSN: 00908312     EISSN: None     Source Type: Trade Journal    
DOI: 10.1080/00908310490441827     Document Type: Article

References (20)

1. Balaz, P., LaCount, R. B., Kern, D. G., and Turcaniova, L. 2001. Chemical treatment of coal by grinding and aqueous caustic leaching. Fuel 80(5):665-671.
2. Balkas, T. I., Basturk, O., Gaines, A. F., Salihoglu, I., and Yilmaz, A. 1983. Comparison of five humic acids. Fuel 62:373-379.
3. Barancikova, G., Senesi, N., and Brunetti, G. 1997. Chemical and spectroscopic characterization of humic acids isolated from different Slovak soil types. Geoderma 78:251-266.
4. Butuzova, L., Krzton, A., and Bazarova, O. 1998. Structure and properties of humic acids obtained from thermo-oxidized brown coal. Fuel 77(6):581-587.
5. Carter, P. W., and Mitterer, R. M. 1978. Composition of organic matter associated with carbonate and non-carbonate sediments. Geochim. Cosmochim. Acta 42:1231-1238.
6. Estevez, M., Juan, R., Ruiz, C., and Andres, J. M. 1990. Formation of humic acids in lignites and subbituminous coals by dry air uxidation. Fuel 69:157-160.
7. Ibarra, J. V., and Juan, R. 1985. Structural changes in humic acids during the Qualification process. Fuel 64:650-656.
8. Ibarra, J. V., and Orduna, P. 1986. Variation of the metal complexing ability of humic acids with coal rank. Fuel 58:1012-1016.
9. Juan, R., Ruiz, C., Andres, J. M., and Estevez, M. 1990. Production humic acids from lignites and subbituminous coals by alkaline-air oxidation. Fuel 69:161-165.
10. Majid, A., Sparks, B. D., and Ripmeester, J. A. 1991. Characterization of solvent-insoluble organic matter isolated from Alberta oil sands. Fuel 70:78-83.
11. Moliner, R., Ruiz, C., Uliaque, C., and Gavilan, J. M. 1983. Action of nitric acid on lignites: mathematical models. Fuel 62:1369-1371.
12. Novak, J., Kozler, J., Janus, P., Cezikova, J., Tokarova, V., and Madronova, L. 2001. Humic acids from coals of the North-Bohemian coal field I. Preparation and characterisation. React. Funct. Polym. 47(2):101-109.
13. Ogunsola, O. I., and Rao, P. D. 1993. Formation of humic acids from air-oxidized Alaskan subbituminous coals. Fuel 72(8):1121-1124.
14. Rosell, R. A., Andriulo, A. E., Schnitzer, M., Crespo, M. B., and Miglierina, A. M. 1989. Humic acids properties of an Argiudoll soil under two tillage systems. Sci. Total Environ. 81/82: 391-400.
15. Schafer, H. N. S. 1984. Determination of carboxyl groups in low-rank coals. Fuel 63:723-726.
16. Sharif, M., Khattak, R. A., and Sarir, M. S. 2002. Effect of different levels of lignitic coal derived humic acid on growth of maize plants. Commun. Soil Sci. Plan. 33(19/20):3567-3580.
17. Stevenson, F. J. 1982. In: Humus: Chemistry, Genesis, Composition, Reactions, New York: Wiley.
18. 13C-NMR study of the humic acids from Victorian brown coal lithotypes. Geochim. Cosmochim. Acta 46:269-277.
19. Vrana, D., and Votruba, J. 1995. Influence of soluble humic substances on the growth of algea and blue-green algae. Folia Microbiol. 40(2):207-208.
20. Zinati, G. M., Li, Y. C., and Bryan, H. H. 2001. Accumulation and fractionation of Cu, Fe, Mn and Zn in calcareous soils amended with composts. J. Environ. Sci. Heal. B 36(2):229-243.