Paper making and fiber liberation – Processes of chemical liberation – recovery or purification... – Gas – vapor or mist contact
Patent
1975-11-12
1978-05-09
Bashore, S. Leon
Paper making and fiber liberation
Processes of chemical liberation, recovery or purification...
Gas, vapor or mist contact
195 8, D21C 108
Patent
active
040885291
ABSTRACT:
Air is circulated through a body of wood chips at a rate sufficient for maintaining a uniform temperature and oxygen content throughout the body of wood chips. Fresh air is supplied at a rate sufficient for keeping the oxygen content of the circulating air at 16% by volume, at least. The temperature is maintained at 35.degree.-80.degree. C. This process results in a rapid seasoning of the natural resin, of the wood chips, making it possible to use the wood chips for pulping after 1-4 days only.
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Rydholm; "Chip Pile Studies at Billeruds AB;" Pulp & Paper International; Dec. 1963.
Annergren, et al. "On Outside Storage of Sprucewood Chips pp. 125-145 For Sulphite Pulping," Svensk Papperstidning vol. 67, No. 4, Feb. 29, 1964.
Assarsson et al., "Outside Chip Storage" Svensk Papperstidning, vol. 73, No. 16, pp. 493-501 (Aug. 31, 1970).
Assarsson et al., "Outside Chip Storage" Svensk Papperstidning, vol. 73, No. 17, pp. 528-541 (Sep. 15, 1970).
Dillner, "Outside Stored Chips As Raw Material For Pulping" FAO/NORAD Symposium; (Aug. 13-Sep. 8, 1972).
Rynman James O.
Vogt Nils A.
Alvo Steve
Bashore S. Leon
Billeruds Aktiebolag
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