Paper making and fiber liberation – Processes of chemical liberation – recovery or purification... – With regeneration – reclamation – reuse – recycling or...
Patent
1996-06-24
1998-04-21
Czaja, Donald E.
Paper making and fiber liberation
Processes of chemical liberation, recovery or purification...
With regeneration, reclamation, reuse, recycling or...
162 60, 8156, D21C 902
Patent
active
057413991
ABSTRACT:
In a pulp washing method which employs a dilution stage, followed by an extraction stage, and followed, in turn by a dilution stage, filtrates from the extraction stage and the displacement stage are segregated so that at least a part of the filtrate from the extraction stage may be removed from the pulp washing.
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Beloit Technologies Inc.
Campbell Raymond W.
Czaja Donald E.
Donovan Paul F.
Leavitt Steven B.
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