Impacts of aryl-ether cleavages in alkaline delignification of softwood
Journal
Journal of Wood Chemistry and Technology
Journal Volume
21
Journal Issue
1
Pages
53-66
Date Issued
2001
Author(s)
Lai, Y.-Z.
Abstract
The cleavage of aryl ether linkages has been shown having a direct impact on the alkaline delignification of Norway Spruce up to approximately 90–95% level, and has little influence on further delignification reactions. Interestingly, such impacts were very comparable for both soda and kraft cooks, and were substantially reduced by lowering pulping temperatures. Thus, the lignin degradation and dissolution process were also affected by other chemical factors than aryl ether cleavages. The results also suggest that aryl ether units present in wood lignin vary significantly in reactivity.
SDGs
Type
journal article