Paper making and fiber liberation – Processes of chemical liberation – recovery or purification... – Continuous chemical treatment or continuous charging or...
Patent
1988-07-01
1989-09-26
Chin, Peter
Paper making and fiber liberation
Processes of chemical liberation, recovery or purification...
Continuous chemical treatment or continuous charging or...
162 24, 162 52, 162 56, 162 65, 162 88, 162 90, D21B 104
Patent
active
048697834
ABSTRACT:
A chemical pulping process is disclosed wherein wood chips are partially defiberized such that the fibers in the chips are substantially separated from one another but sufficient interfiber bonding is maintained to preserve chip integrity and thereby provide chips having an open porous fibrous network; and the chips are subjected to chemical pulping at an elevated temperature to remove a majority of the lignin in the chips.
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"Chip Destructing Improves Kraft Pulping", D. Lachenal, 1984 Pulping Conference, pp. 13-16.
Oates Clarence L.
Prusas Zenon C.
Chin Peter
Dang Thi
The Mead Corporation
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