지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
이용수
초록· 키워드
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In previous report, we investigated the impact of hexeneuronic acid and some residual extractiveson lignin determination. These non-lignin components severely interfered lignin content determination which also affect on the oxygen delignification comparison between aspen and pine unbleached kraft pulps. Very different pattern was observed whether based on uncorrected conventional kappa number or based on corrected kappa number in oxygen delignification comparison. Lower kappa number aspen pulps showed poor response to oxygen delignification when kappa number was used as lignin determination method but better response with using the acid lignin method.
Phenolic hydroxyl group in kraft pulps were also compared based on uncorrected or corrected kappa numberfor lignin content. Based on uncorrected kappa number, lower kappa number oxygen-delignified pulps had lower phenolic hydroxyl group. However, lower kappa number oxygen-delignified pulps showed much higher phenolic hydroxyl group based on the corrected lignin content. For accurate comparison for residual lignin properties from different pulps, lignin determination should be corrected from non-lignin components contribution to lignin.
Phenolic hydroxyl group in kraft pulps were also compared based on uncorrected or corrected kappa numberfor lignin content. Based on uncorrected kappa number, lower kappa number oxygen-delignified pulps had lower phenolic hydroxyl group. However, lower kappa number oxygen-delignified pulps showed much higher phenolic hydroxyl group based on the corrected lignin content. For accurate comparison for residual lignin properties from different pulps, lignin determination should be corrected from non-lignin components contribution to lignin.
목차
ABSTRACT
1. Introduction
2. Materials and Methods
3. Results and Discussions
4. Conclusions
Literature Cited
참고문헌 (11)
참고문헌 신청
[학술지(정기간행물)] - / 1996 / "Oxygen Delignification : 215 ~
[학술지(정기간행물)] - / 1997 / Performance Parameters of Oxygen Delignification : 80 ~
[학술지(정기간행물)] - / 1996 / Fundamentals of High-Pressure Oxygen and Low-Pressure Oxygen- Peroxide Delignification of Softwod and impact of Lignin Determination Method on Oxygen Delignification Chemistry 55Hardwood Kraft Pulps : 457 ~
[학술지(정기간행물)] - / 2004 / Impact of Residual Extractives and Hexenuronic Acid on Lignin Determination of Kraft Pulps. J. Korea TAPPI 36 36
[학술지(정기간행물)] - / 1999 / Oxygen Delignification of High-yield Kraft Pulp Part 1. Structural properties of residual lignin. Holzforschung 53
[학술지(정기간행물)] - / 1997 / Performance Parameters of Oxygen Delignification : 80 ~
[학술지(정기간행물)] - / 1996 / Fundamentals of High-Pressure Oxygen and Low-Pressure Oxygen- Peroxide Delignification of Softwod and impact of Lignin Determination Method on Oxygen Delignification Chemistry 55Hardwood Kraft Pulps : 457 ~
[학술지(정기간행물)] - / 2004 / Impact of Residual Extractives and Hexenuronic Acid on Lignin Determination of Kraft Pulps. J. Korea TAPPI 36 36
[학술지(정기간행물)] - / 1999 / Oxygen Delignification of High-yield Kraft Pulp Part 1. Structural properties of residual lignin. Holzforschung 53
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UCI(KEPA) : I410-ECN-0101-2009-586-015187942