Theoretical and practical aspects of wood delignification during kraft and soda pulping
The new ideas about acid-base interactions of wood components with cooking solutions during kraft and soda pulping are discussed. The results of cookings of spruce wood at 170 °C in the solutions of different reagents-organic solvent-water composition are demonstrated. The experimental confirmation of significant contribution of charge- and orbital-controlled reactions and solvation to the alkaline wood delignification process is presented. This study will enable in the future to offer the ways of regulation of the alkaline pulping by the selection of technological cooking parameters.