Controlling the Efficiency of Oxygen Delignification Through Selected Key Operational Parameters: Pulp Mixing and Metals Management, 2001 Pulping Conference Proceedings

R. Yang, L. A. Lucia, A. J. Ragauskas--The efficiency of the oxygen delignification process on various softwood and hardwood kraft pulps was separately explored as a function of pulp mixing speed and nonprocess element (NPE) management. This investigation focused on these parameters since they are relatively facile to control and have long been assumed to be critical parameters affecting the overall efficiency of the process. The investigation determined that relatively intense mixing speeds (1000 rpm) are required for optimal pulp response, although viscosity is not compromised at any speed. The levels of magnesium are very important for hardwood (HW) response versus softwood (SW) response mainly because of the lower levels of native magnesium concentration in HW as compared to SW.

Author: Yang, R., Lucia, L.A., Ragauskas, A.J.
Controlling the Efficiency of Oxygen Delignification Through
Controlling the Efficiency of Oxygen Delignification Through Selected Key Operational Parameters: Pulp Mixing and Metals Management, 2001 Pulping Conference Proceedings
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