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

页码：457 / 463

页数：7

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