PROCESS OF SEPARATING ONE FRACTION OF AN ARTIFICIAL MATERIAL FROM ANOTHER ARTIFICIAL MATERIAL OF DIFFERENT TYPE IN A MIXTURE OF ARTIFICIAL MATERIALS

摘要

PCT No. PCT/EP92/01614 Sec. 371 Date Apr. 9, 1993 Sec. 102(e) Date Apr. 9, 1993 PCT Filed Jul. 4, 1992 PCT Pub. No. WO93/03852 PCT Pub. Date Mar. 4, 1993.Plastic mixtures, in particular those of a similar density such as polyethylene and polypropylene, are separated electrostatically, whereby prior to charging, the mixture is subjected to a surface treatment.