Method and apparatus for explosively defibrating cellulosic fibe

Details Method and apparatus for explosively defibrating cellulosic fibe Method and apparatus for explosively defibrating cellulosic fibe

1978-04-24

1979-08-07

Fisher, Richard V.

Paper making and fiber liberation

Processes of chemical liberation, recovery or purification...

Defibration by projection or explosion

162 22, 162247, 2395905, 241 5, D21B 136

Patent

active

041636872

ABSTRACT:
A uniquely designed nozzle is described for assisting the liberation of fibres from cellulosic material during an explosive defibration process. The nozzle is constructed with a plurality of internal bars so as to provide a tortuous path to the material passing therethrough from a region of high pressure to a region of low pressure.

REFERENCES:
patent: 2899242 (1959-06-01), Teichmann
patent: 2943012 (1960-06-01), Dunning et al.
patent: 3015127 (1962-01-01), Stalego
patent: 3617433 (1971-11-01), Sutherland
patent: 4059231 (1977-11-01), Neu
Goring, "Thermal Softening of Lignin, Hemicellulose and Cellulose", Pulp and Paper Magazine of Canada, Dec. 1963.
Mamers et al., "Explosion Pulping of Woodchips", Memorandum No. CE/M34; Commonwealth Scientific and Industrial Research Organisation, Australia, Jun. 1973.

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