Multi-stage chlorinator

D - Textiles – Paper – 21 – C

Patent

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Details

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.

233397

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