Method for separating multi-ply packaging material for recycling

Solid material comminution or disintegration – Processes – With application of fluid or lubricant material

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241 20, 241 24, 241 41, 241 791, 241DIG38, B02C 1912, B02C 2318

Patent

active

053581849

ABSTRACT:
A separator for separator a paper ply from a polymer or other ply of heterogeneous, multi-ply packaging materials subjects the packaging materials to high pressure liquid delivered from a plurality of rotating nozzles. The packaging material is delivered into the chamber from a pre-wetting or soaking station. The nozzles in the chamber separate the paper from the polymer and reduces the paper to fibers. The polymer is skimmed off the top of the chamber in which the material is treated. The water and pulp are delivered to a settling tank where the paper fibers settle and water is removed. The remaining liquid and the paper fibers are delivered to a centrifugal screw where the remaining water is removed from the paper.

REFERENCES:
patent: 4153207 (1979-05-01), Cerroni
patent: 4154407 (1979-05-01), Lamort
patent: 4160722 (1979-07-01), Marsh
patent: 5104047 (1992-04-01), Simmons
patent: 5115983 (1992-05-01), Rutherford, Sr.
patent: 5234172 (1993-08-01), Chupka et al.
patent: 5271805 (1993-12-01), Stockel et al.

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