Citation
Abdul Halim Hassan, . and Kamarudin Hassan, . and Ridzuan Ramli, . and Mohd. Zin Jusoh, . (1991) Improvement on the brightness of unbleached chemithermomechanical pulps from oil palm frond. [Proceedings Paper]
Abstract
The brightness of unbleached chemithermomechanical pulps CTMPs from oil palm frond was found to be in the range of 20 to 30. However the low brightness of unbleached CTPMs can be improved by removing the parenchymatous ground tissue of the oil palm frond prior to refining. From this study it was observed that the effect of potassium hydroxide and sodium sulfite admixtures leads to a synergistic brightening of the resulting CTMPs when they are added to the chip devoid of parenchyma. Thus bleaching of the CTMPs to the required level of pulp brightness can be carried out at milder conditions.
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Abstract
The brightness of unbleached chemithermomechanical pulps CTMPs from oil palm frond was found to be in the range of 20 to 30. However the low brightness of unbleached CTPMs can be improved by removing the parenchymatous ground tissue of the oil palm frond prior to refining. From this study it was observed that the effect of potassium hydroxide and sodium sulfite admixtures leads to a synergistic brightening of the resulting CTMPs when they are added to the chip devoid of parenchyma. Thus bleaching of the CTMPs to the required level of pulp brightness can be carried out at milder conditions.
Additional Metadata
| Item Type: | Proceedings Paper |
|---|---|
| Additional Information: | Available at Perpustakaan Sultan Abdul Samad Universiti Putra Malaysia 43400 UPM Serdang Selangor Malaysia. mal SB299 P3N277 1991 Call Number |
| AGROVOC Term: | OIL PALMS |
| AGROVOC Term: | PULP |
| AGROVOC Term: | SODIUM SULPHITE |
| AGROVOC Term: | BLEACHING |
| AGROVOC Term: | PURIFICATION |
| AGROVOC Term: | CHEMICAL COMPOSITION |
| AGROVOC Term: | USES |
| AGROVOC Term: | MALAYSIA |
| Geographical Term: | MALAYSIA |
| Depositing User: | Ms. Norfaezah Khomsan |
| Last Modified: | 24 Apr 2025 05:27 |
| URI: | http://webagris.upm.edu.my/id/eprint/15681 |
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