D - Textiles – Paper – 21 – C
Patent
D - Textiles, Paper
21
C
8/78, 92/60.1
D21C 9/10 (2006.01)
Patent
CA 1052955
Abstract of the Disclosure A process for bleaching pulp in tank comprises several steps. A pulp slurry and an oxidizing agent are supplied to a first tank compartment. The mixture of pulp slurry and oxidizing agent is agitated at a first power level that corresponds to an approximate minimum power level for a maximum reaction rate on a plot of reaction rate versus power level for a first residence time. The mixture is re-agitated in another tank compartment at a second power level that corresponds to an approximate minimum power level for a maximum reaction rate on a plot of reaction rate versus power level for a second residence time.
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