Method of digesting waste paper

Details Method of digesting waste paper Method of digesting waste paper

1993-11-29

1994-10-25

Eley, Timothy V.

Solid material comminution or disintegration

Processes

With application of fluid or lubricant material

241 21, 241 23, 241 28, B02C 1108, B07K 700

Patent

active

053581857

ABSTRACT:
A method of digesting waste paper is disclosed wherein waste paper is digested in a gas-tight container at an elevated pressure supplied by compressed gas introduced to the container. The digestion mixture is circulated within the pulper by a rotor having vanes or helical surfaces.

REFERENCES:
patent: 3891497 (1975-06-01), Daane et al.
patent: 3910505 (1975-10-01), Reinhall
patent: 3948449 (1976-04-01), Logan et al.
patent: 4009835 (1977-03-01), Syrjanen
patent: 4037792 (1977-07-01), Peterson
Mack, H., Papiertechnische Biobliothek, vol. 1, "Altpapieraufbereitung," pp. 89-92.

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