Process for gas phase delignifying wood pulp using chlorine diox

Details Process for gas phase delignifying wood pulp using chlorine diox Process for gas phase delignifying wood pulp using chlorine diox

1993-10-25

1995-12-12

Lacey, David L.

Paper making and fiber liberation

Processes of chemical liberation, recovery or purification...

Vacuum treatment

162 66, 162 67, D21C 914

Patent

active

054746540

ABSTRACT:
A process for gas phase delignifying wood pulp comprising: contacting wood pulp in the first stage of pulp bleaching with chlorine dioxide-containing gas to delignify said wood pulp; wherein

REFERENCES:
patent: 3579419 (1967-04-01), Yorston et al.
patent: 3630828 (1971-12-01), Liebergott
patent: 3655505 (1972-04-01), Yorston et al.
patent: 3725193 (1973-04-01), de Montigny
patent: 3810969 (1974-05-01), Schlumberger et al.
patent: 4259149 (1981-03-01), Jaszka et al.
patent: 4325934 (1982-04-01), Swindells et al.
patent: 4798715 (1989-01-01), Hardee et al.
patent: 5089095 (1992-02-01), Cawlfield et al.
patent: 5342601 (1994-08-01), Cawlfield et al.
Rudra Signh, "The Bleaching of Pulp", TAPPI Press, 2nd Edition, 1979, p. 63.
Jiri Basta et al., "Low AOX, Possibilities & Consequences", 1989 Pulping Conference, Book 2, Oct. 1989, TAPPI Press.
Cook, Roger., "A bleaching Proc for Min. AOX discharges," Cook of Apita, vol. 44, No. 3, May 1991, pp. 179-183.
Perkins, "Gas Phase Bleaching", CEP Jun. 1976 pp. 51-54.
Stockburger, Paul. "What You need to know before buying your next ClO.sub.2 plant", TAPPI, vol. 76, No. 3, Mar. 1993, pp. 99-104.
Reeve, D. W., Weishar, K. M., and Li, L.; "Process Modifications to Decrease Organochlorine Formation During Chlorine Dioxide Delignification" presented at International Pulp Bleaching Conference, Vancouver, B.C., Jun. 13-16, 1994.
L. Torregrossa et al. "Decomposition of Gaseous Chlorine Dioxide" TAPPI, vol. 59, No. 11, Nov. 1976, pp. 92-93.
H. deV. Partridge et al., "Two Years of SVP Chlorine Dioxide Plant Operations" Pulp & Paper Magazine of Canada, vol. 73, #8, Aug. 1992.

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