Study of Organic Bases Potential in Bagasse Pulping | ||
| تحقیقات علوم چوب و کاغذ ایران | ||
| Article 1, Volume 22, Issue 2 - Serial Number 27, September 2008, Pages 73-80 PDF (240.81 K) | ||
| Document Type: Research Paper | ||
| DOI: 10.22092/ijwpr.2007.117427 | ||
| Authors | ||
| Aghdas Sadeghi1; Ali Abdolkhani2; Yahya Hamzeh3; Ahmad Mirshokraei4; Alinaghi Karimi5 | ||
| 1B.Sc. Student, Dept. of Wood and Paper, Faculty of Natural Resources, Tehran University, Karaj, | ||
| 2Ph.D Student, Dept. of Wood and Paper, Faculty of Natural Resources, Tehran University, Karaj | ||
| 3Assist. Prof., Dept. of Wood and Paper, Faculty of Natural Resources, Tehran University, Karaj, | ||
| 4Prof., Dept. of Chemistry, Payame Noor University | ||
| 5Associa. Prof., Dept. of Wood and Paper, Faculty of Natural Resources, Tehran University, Karaj, | ||
| Abstract | ||
| In this study the pulping of bagasse using TMAH and EDA as organic bases was investigated and compared to conventional Soda and Soda-AQ bagasse pulping. Resulting pulps properties including Kappa number, reject, screen yield of pulp and optical and mechanical properties of handsheets prepared from them were determined and compared. Kappa number of TMAH pulp was considerably lower than others. Also, optical properties of TMAH and TMAH-NaOH pulps were considerably higher than Soda and Soda-AQ reference pulps. As well as, addition of EDA to pulping liquor resulted suitable pulp with better properties compared to Soda pulp. Based on the obtained results, it was concluded that the delignificatiom mechanism of TMAH differ to hydroxide ion from NaOH and probably it improves the delignification rate through increasing of lignin degradation and its solubility. | ||
| Keywords | ||
| Bagasse Pulping; Organic bases; Organic solvent; Tetramethyleamonium hydroxide; Ethylenediamine | ||
| References | ||
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