Method for treating stock for paper making

D - Textiles – Paper – 21 – D

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D21D 1/00 (2006.01) D21D 5/00 (2006.01)

Patent

CA 1269270

ABSTRACT An improved method for treating cellulosic material recovered from a disc refiner in a mechanical pulp making process. Latency removal is conducted at a medium consistency of from about 8 to 15 percent in a medium consistency pump after which the suspension is removed at a medium consistency first to a screening device and then to a storage tank. Cleaning then takes place at low consistency. The method affords efficiencies in the nature of reduced capital costs and energy consumption.

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