Method for the delignification of wood pulp utilizing fused ring quinone compounds prepared from lignin or lignin derived substances

摘要

A method for the preparation of a mixture of fused ring quinone type compounds from lignin and lignin derived substances. The mixture of fused ring quinone compounds has been found useful in the wood pulping process as an accelerator in the degradation and separation of wood lignin from the other principal wood constituents, cellulose and hemicellulose.