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Comparison of Condensation Reactions of Lignin at Cα-Positions in Kraft and Acid Sulfite Delignification of Western Hemlock
http://hdl.handle.net/10076/3197
http://hdl.handle.net/10076/3197ee146ea4-b384-494c-9c72-f22fc22e48b4
名前 / ファイル | ライセンス | アクション |
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AN100738460000504.pdf (379.0 kB)
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Item type | 紀要論文 / Departmental Bulletin Paper(1) | |||||
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公開日 | 2007-05-17 | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | Comparison of Condensation Reactions of Lignin at Cα-Positions in Kraft and Acid Sulfite Delignification of Western Hemlock | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Kraft pulping | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Acid sulfite pulping | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Lignin degradation | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Condensation | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Diphenylmethane | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | departmental bulletin paper | |||||
著者 |
船岡, 正光
× 船岡, 正光× Chiang, Vincent L× Kolppo, Kari× Stokke, Douglas D. |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Acid sulfite delignification of western hemlock(Tsuga heterophylla)was carried out from 90℃ to a final temperature of 145℃. Kraft pulping was also carried out from 90℃,but to a final temperature of 170℃. At various stages of delignification structual units condensed at Cα-positions in residual lignins were detemined directly without isolating their lignins. In kraft pulping,the formation of structural units condensed at Cα-positions started at the point where about 50% of the lignin were removed. In acid sulfite pulping, the formation of those occurred when 65-70% of the lignin were removed. About 55% of the phenyl nuclei were found associated with condensed structures at Cα-positions in the residual lignins in both kraft and acid sulfite pulps having a kappa number about 35. | |||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Western hemlock のクラフトおよび酸性サルファイト蒸解過程におけるパルプ残留リグニンの構造変化を定量的に追跡した。リグニンベンジル位での縮合反応は, クラフト蒸解過程においてリグニン除去率約50%の時点で開始したが, 一方酸性サルファイト蒸解では65~70%の時点で始まった。クラフトおよび酸性サルファイトいずれにおいても, パルプ(Kappa価35)残留リグニンの芳香核の55%以上は側鎖α位縮合構造(ジフェニルメタン型構造単位)に取り込まれていた。 | |||||
書誌情報 |
三重大学生物資源学部紀要 = The bulletin of the Faculty of Bioresources, Mie University 巻 5, p. 37-44, 発行日 1991-01-31 |
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ISSN | ||||||
収録物識別子タイプ | PISSN | |||||
収録物識別子 | 0915-0471 | |||||
書誌レコードID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AN10073846 | |||||
フォーマット | ||||||
内容記述タイプ | Other | |||||
内容記述 | application/pdf | |||||
著者版フラグ | ||||||
出版タイプ | VoR | |||||
出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||
日本十進分類法 | ||||||
主題Scheme | NDC | |||||
主題 | 657 | |||||
その他のタイトル | ||||||
ja | ||||||
Western hemlockのクラフトおよび酸性サルファイト蒸解過程におけるリグニン側鎖α位での縮合反応 | ||||||
出版者 | ||||||
出版者 | Faculty of Bioresources, Mie University | |||||
ノート | ||||||
Agropedia提供データ | ||||||
資源タイプ(三重大) | ||||||
Departmental Bulletin Paper / 紀要論文 |