Pulp Kappa Number Kappa Crossword Puzzles Value Pack Kappa Crossword Puzzle Subscriptions Kappa Crossword Puzzle Books Kappa Kappa Gamma Legacy Form All Number Finds Puzzle Books Phi Theta Kappa Ranger College Free Cross Patch Puzzles
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The Kappa number is determined by ISO 302:2004.hemicelluloses.
The Kappa number can be monitored by online Kappa analysers in a pulp mill, but these have to be calibrated with the ISO 302:2004 method.
The Kappa number estimates the amount of chemicals required during bleaching of wood pulp to obtain a pulp with a given degree of whiteness. Since the amount of bleach needed is related to the lignin content of the pulp, the Kappa number can be used to monitor the effectiveness of the lignin-extraction phase of the pulping process. It is approximately proportional to the residual lignin content of the pulp.
K ≈ c*l
K: Kappa number; c: constant ≈ 6,57 (dependent on process and wood); l: lignin content in percent