Method for deinking recycled fiber by applying direct current el

Details Method for deinking recycled fiber by applying direct current el Method for deinking recycled fiber by applying direct current el

1991-11-25

1993-08-24

Chin, Peter

Paper making and fiber liberation

Processes of chemical liberation, recovery or purification...

Waste paper or textile waste

162 6, 162 50, 162192, 204132, 204133, D21B 108

Patent

active

052385388

ABSTRACT:
A method for the deinking of recycled fibers, in which the macerated fibers are slurried with water; introduced to a deinking cell which has a central anode and a perimetal cathode; subjected to a direct current electric field applied between the anode and the cathode, causing the ink to be attracted away from the fibers and to electrocoagulate the ink then floating to the surface of the slurry with the aid of gas bubbles generated during the application of the electric field; and washed to recover a cleaner, brighter pulp of recycled fibers.

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Zabala et al. "Drinking at Paelera Peninsular & the Philosphy of Deinking System Design", Aug,. 1988, Tappi J. pp. 62.67.

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