Paper making and fiber liberation – Processes of chemical liberation – recovery or purification... – With regeneration – reclamation – reuse – recycling or...
Patent
1974-12-17
1977-03-29
Bashore, S. Leon
Paper making and fiber liberation
Processes of chemical liberation, recovery or purification...
With regeneration, reclamation, reuse, recycling or...
8156, 55 57, 55 87, 162 40, 162 53, 162 60, 162190, 162208, 162217, 210 66, 210 67, 210 69, 210 77, D21C 906, D21C 918
Patent
active
040147363
ABSTRACT:
A slurry of cellulosic material is diluted to a flowable consistency and subjected to a pressure differential on a permeable surface to increase the slurry consistency to a value between the consistency of the diluted slurry and the consistency of th slurry prior to dilution thereby forming a mat of cellulosic material on the permeable surface. The liquid and solids which pass through the permeable surface as a result of the pressure differential are recycled for use as slurry diluent, and to the mat of cellulosic material is applied a treating liquid, such as a washing liquid.
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Bashore S. Leon
Canadian International Paper Company
Corbin Arthur L.
Schapira Ronald A.
The Ontario Paper Company Limited
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