Electrostatic separation of plastic materials

Details Electrostatic separation of plastic materials Electrostatic separation of plastic materials

1990-10-16

1992-06-02

Hajec, Donald T.

Classifying, separating, and assorting solids

Special applications

2091272, 2091273, 209129, B03C 702

Patent

active

051184079

ABSTRACT:
An apparatus and associated method of separating mixed fragments of different plastic materials, in which the materials to be separated are capable of carrying electrostatic charges of opposite polarities. The mixed charged fragments are given an induced electrostatic charge and are then exposed to electrostatic field of opposite polarities where they are separated by being allowed to migrate toward their respectively oppositely charged fields. The separated material fragments are then collected.

REFERENCES:
patent: 3309569 (1967-03-01), Heyl et al.
patent: 4092241 (1978-05-01), Mackenzie et al.
patent: 4570861 (1986-02-01), Zentgraf et al.
patent: 4895642 (1990-01-01), Frei

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