Paper making and fiber liberation – Processes of chemical liberation – recovery or purification... – Waste paper or textile waste
Patent
1977-07-27
1980-04-29
Halper, Robert
Paper making and fiber liberation
Processes of chemical liberation, recovery or purification...
Waste paper or textile waste
209 3, 209 12, 162 4, 241 28, D21C 502
Patent
active
042004861
ABSTRACT:
Components of pulped scrap material containing paper, metal and plastic materials are separated by subjecting the pulped material to sorting in cyclone separators, the discharge from the top part thereof being led to a screen sorter where the material is divided into two parts, one part containing in its major part paper stuff, the other part containing plastic material, the discharge from the bottom part of the cyclone separators containing metal components.
REFERENCES:
patent: 2889242 (1959-06-01), Teichmann
patent: 3736223 (1973-05-01), Marsh
patent: 3849245 (1974-11-01), Marsh
patent: 3873418 (1975-03-01), Brox
patent: 3925150 (1975-12-01), Marsh
patent: 3957572 (1976-05-01), Eriksson
patent: 4000031 (1976-12-01), Acohas
patent: 4017033 (1977-04-01), Tin
Carsky Milan
Kostka Anton
Mueller Jiri
Prochazka Bretislav
Vagac Svetozar
Halper Robert
Vyskumny ustav papieru a celulozy
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