Catalytic oxidation of Cedar Bark (Pinus Sibirica with Oxygen to Vanillin and Pulp

被引：0
|
作者：
Vigul, Dmitry O. [1 ]
Tarabanko, Valery E. [1 ]
Chelbina, Yulia, V [1 ]
Levdansky, Vladimir A. [1 ]
机构：
[1] FRC Krasnoyarsk Sci Ctr SB RAS, Inst Chem & Chem Technol SB RAS, Krasnoyarsk, Russia
来源：
JOURNAL OF SIBERIAN FEDERAL UNIVERSITY-CHEMISTRY | 2021年 / 14卷 / 04期
关键词：
catalytic oxidation; cedar bark; pinus sibirica; lignin; vanillin; acetovanillone; vanillic acid; pulp; tannins;
D O I：
10.17516/1998-2836-0254
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
The catalytic oxidation of natural and pre-extracted cedar bark (Pinus Sibirica) by molecular oxygen is studied. Tannins were shown to inhibit the formation of vanillin while oxidizing the bark. The yields of vanillin are 5-7 wt.% based on bark lignin, which is of 3-4 times lower compared to the results of wood oxidation. The presence of tannins in the raw material complicates the lignin analysis and can overestimate the results twice.
引用
收藏
页码：457 / 463
页数：7
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