Sodium Perborate Usage instead of Hydrogen Peroxide for the Reinforcement of Oxygen Delignificationon
Research and development
Authors:
- Pesman Emrah
The Department of Forest Industrial Engineering, Faculty of Forestry, Artvin Çoruh University, Artvin, Turkey - Kalyoncu Evren E.
The Department of Pulp and Paper Tech., Faculty of Forestry, Karadeniz Technical University, Trabzon, Turkey - Kirci Hüseyin (j/w)
 Full text | Abstract: Oxygen has always been an attractive oxidant for the pulp and paper industry due to it being cheap and harmless for the environment. However, it has lower lignin-cellulose selectivity, therefore the degree of delignification achieved at the oxygen stage is ultimately limited by its industrial pulp strength – 45-50% . In this study, to enhance the degree of delignification, the addition ofsodium perborate and hydrogen peroxide at the oxygen stage was examined. At the same active oxygen (approximately 0.5%) content, the degree of delignification increased from 45.56% to 49.42% using hydrogen peroxide and to 52.96% with sodium perborate. For the same selectivity parameter with control, the delignification degree can be increased to 57.59% with the addition of sodium perborate, which includes 1% active oxygen. Moreover, the costs of using sodium perborate and hydrogen peroxide were compared with respect to commercial employability. It was determined that the use of sodium perborate was more effective than that of hydrogen peroxide for delignification of the oxygen stage. |
Tags: oxygen delignification, sodium perborate, selectivity, active oxygen, hydrogen peroxide.
Citation: Pesman E., Kalyoncu E. E., Kirci H.; Sodium Perborate Usage instead of Hydrogen Peroxide for the Reinforcement of Oxygen Delignification. FIBRES & TEXTILES in Eastern Europe 2010, Vol. 18, No. 6 (83) pp. 106-109.