Process for making refiner mechanical pulp

Paper making and fiber liberation – Processes of chemical liberation – recovery or purification... – Chemical treatment after start or completion of mechanical...

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162 28, 162 38, 162 68, 162 71, 162 83, 162 84, 162DIG2, D21C 304

Patent

active

042591481

ABSTRACT:
A process for making a refiner mechanical pulp from wood chips which comprises:

REFERENCES:
patent: 2198587 (1940-04-01), Skinner
patent: 2882147 (1959-04-01), Davenport et al.
patent: 2906659 (1959-09-01), Dorland et al.
patent: 2949395 (1960-08-01), Von Hazmburg
patent: 3558428 (1971-01-01), Asplund

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