DEVICE FOR REMOVING INK FROM WASTE PAPER

摘要

A process for removing ink from wastepaper comprises (a) introducing an aq. slurry of wastepaper pulp into a treating vessel, (b) blowing air bubbles into the pulp slurry in the vessel to cause the air bubbles to absorb ink particles from the pulp slurry while rising to the surface of the pulp slurry, and (c) removing the resultant ink- absorbed froth from the pulp slurry.