Method and apparatus for recovery of plastics and non-plastics f

Details Method and apparatus for recovery of plastics and non-plastics f Method and apparatus for recovery of plastics and non-plastics f

1973-01-18

1976-12-28

Bashore, S. Leon

Paper making and fiber liberation

Processes of chemical liberation, recovery or purification...

Waste paper or textile waste

162 55, 162191, 209 3, 209173, 241 14, 241 20, 241 21, 241 28, D21C 502

Patent

active

040000311

ABSTRACT:
Process and apparatus for the recovery of both cellulosic fibers and plastic material from plastic-coated papers and boards.
This material is wet-pulped in water suspension, and the suspension is then discharged into dilution tanks for floating most of the plastic material at the upper region of the suspension, wherefrom the plastic material is mechanically separated by wire-mesh conveyors, and washed in a rotating screen.
The fibrous suspension is screened in a rotating screen to eliminate the residual plastic material.

REFERENCES:
patent: 483030 (1892-09-01), Volstorf
patent: 3408255 (1968-10-01), Tatum
patent: 3574050 (1971-04-01), Rice
patent: 3597308 (1971-08-01), Brooks
patent: 3615014 (1971-10-01), Hruby
patent: 3736223 (1973-05-01), Marsh

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