Process for the treatment of pulp with oxygen and steam using ej

Paper making and fiber liberation – Processes of chemical liberation – recovery or purification... – Waste paper or textile waste

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162 57, 162 65, 162 68, D21C 9147

Patent

active

056907869

ABSTRACT:
A process for using ejectors to combine high pressure steam and low pressure oxygen to produce a steam and oxygen enriched gas single phase gas mixture for introduction into various pulp treatments using oxygen with the benefit of low cost compression, low capital requirements and superior oxygen mixing.

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patent: 4248662 (1981-02-01), Wallick
patent: 4259150 (1981-03-01), Prough
patent: 4515655 (1985-05-01), Schaefer
patent: 4543155 (1985-09-01), Stawicki
patent: 4642690 (1987-02-01), Gazdik et al.
patent: 4674888 (1987-06-01), Carlson
Arakin, 1E and Evdokimov, An; "Oxygen-Soda Pulp Digestin Using the Ejector"; Bumah. Pom. No. 8, Aug. 1979, pp. 20-22.
Arakin, 1E and Evdokimov, An; "Apparatus Designed for Single-Stage Oxygen/Aikoli Pulp"; Bumazh. Prom. Nov. 3, 30 Mar. 1981.
Perkins, Joseph K.; "Implementation of Wood Pulp Chlorinatin Technology"; CPPA Tech. Sect. 66th Annual Meeting; 1980; 1980 pp. B95-98.
Haddock, H.; "Basics of Thermocompressors and Their Value to Paper Dujing"; BP1317 Tech. Dir. Working Grp; Dec. 6, 1978.

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