Fig. 8From: Totally chlorine-free bleaching of prehydrolysis soda pulp from plantation hardwoods consisting of various lignin structuresMolecular-weight distribution of purified soda-AQ lignin obtained under various prehydrolysis temperatures (prehydrolysis conditions: 2.5 h; Soda-AQ cooking conditions: 3 h at 150 °C, and AA 18%)Back to article page