The effects of hydrogen peroxide and anthraquinone on soda ash pulping of wheat straw

被引：7

作者：

Cao, BJ ^{[1
]}

Lee, ZZ ^{[1
]}

机构：

[1] NANJING FORESTRY UNIV,INST LIGNIN CHEM,NANJING,PEOPLES R CHINA

来源：

HOLZFORSCHUNG | 1996年 / 50卷 / 01期

关键词：

hydrogen peroxide; anthraquinone; soda ash; wheat straw; pulping;

D O I：

10.1515/hfsg.1996.50.1.62

中图分类号：

S7 [林业];

学科分类号：

0829 ; 0907 ;

摘要：

A comparative study was undertaken to evaluate the effects of H2O2 and AQ on wheat straw pulping. The alkaline pulping liquor was a mixture of Na2CO3 and NaOH at the ratio of 7 to 3. The addition of 0.1% AQ to the cooking liquor reduced the alkali consumption by about 34% and decreased the Kappa number by about 20 units. By contrast, the addition of 3% H2O2 increased the alkali consumption by about 25% and did not increase the degree of delignification. The addition of AQ resulted in more selective delignification while the addition of H2O2 is less selective. Na2CO3/NaOH/AQ process (AP-AQ) is found suitable for pulping of wheat straw, producing a high yield bleachable grade pulp.

引用

页码：62 / 68

页数：7