Paper making and fiber liberation – Processes of chemical liberation – recovery or purification... – With regeneration – reclamation – reuse – recycling or...
Patent
1974-10-07
1976-10-26
Bashore, S. Leon
Paper making and fiber liberation
Processes of chemical liberation, recovery or purification...
With regeneration, reclamation, reuse, recycling or...
162 42, 423183, 423206R, D21C 1104, C01D 136
Patent
active
039881989
ABSTRACT:
Spent hemi caustic effluents from cold caustic extraction of cellulosic pulps are rendered utilizable as a source of sodium hydroxide for pulp processing by heating the effluents for a period of time and at a temperature sufficient to cause the hemicelluloses in the effluents to be degraded and to substantially eliminate precipitation of the hemicelluloses onto cellulosic materials when the effluents are used.
REFERENCES:
patent: 2774666 (1956-12-01), Barton
patent: 3174896 (1965-03-01), Partlow
Beelik Andrew
Hergert Herbert Lawrence
Mitchell Reid Logan
Wilson Jim Degnan
Bashore S. Leon
Fisher Richard V.
Holt H. J.
International Telephone and Telegraph Corporation
Raden J. B.
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