Paper making and fiber liberation – Processes of chemical liberation – recovery or purification... – Chemical treatment after start or completion of mechanical...
Patent
1978-04-11
1981-10-13
Bashore, S. Leon
Paper making and fiber liberation
Processes of chemical liberation, recovery or purification...
Chemical treatment after start or completion of mechanical...
162 26, 162 28, 162 37, 162 40, 162 72, 162 78, 162 83, D21B 116, D21D 120
Patent
active
042946530
ABSTRACT:
A process is provided for the manufacture of bleached chemimechanical cellulose pulp in high yield of between 65 and 95% from particulate and preferably washed lignocellulosic material, such as wood chips, featuring the use of spent or waste bleaching liquid, preferably from a lignin-preserving bleaching process, in at least one stage of the process where a cooling and diluting liquid is required, such as during mechanical defibration of the material.
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MacDonald et al., Editor, The Pulping of Wood, pp. 262-275, New York, 1969.
Lindahl Jonas A. I.
Rudstrom Lars G.
Alvo Steve
Bashore S. Leon
Mo och Domsjo Aktiebolag
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