Method for the preparation of waste paper

Details Method for the preparation of waste paper Method for the preparation of waste paper

1988-04-07

1989-03-28

Lacey, David L.

Paper making and fiber liberation

Processes of chemical liberation, recovery or purification...

Waste paper or textile waste

162 5, 162 55, 241 21, D21C 502

Patent

active

048161179

ABSTRACT:
A method and apparatus for decomposing waste paper in a storage tank (tower) under the effect of chemicals with a high stock concentration (high-consistency stock method), including the rotation of the paper pulp together with dilution and a vigorous extensive disintegration of the waste paper or rags by a slushing rotor in the lowest part of the storage tank (tower).

REFERENCES:
patent: 3994770 (1976-11-01), Lavsch
patent: 4317701 (1982-03-01), Pfalzer
patent: 4360402 (1982-11-01), Ortner et al.
patent: 4622099 (1986-11-01), Eelman
patent: 4634059 (1987-01-01), Bahr et al.
patent: 4641790 (1987-02-01), Musselman et al.

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