NDLI: Electrostatic separation of brass from industrial wastes

Content Provider	IEEE Xplore Digital Library
Author	Iuga, A. Morar, R. Samuila, A. Cuglesan, I. Mihailescu, M. Dascalescu, L.
Copyright Year	1972
Abstract	Previous studies have demonstrated that electrostatic separation can be successfully employed for the recycling of nonferrous metals from chopped electric wire and cable scrap. The aim of this paper was to investigate the possibility of using the electric field forces for the selective sorting of other granular mixtures, such as brass dross. Laboratory tests of electrostatic separation were carried out on three samples: 0.08-1 mm, 0.08-0.2 mm, and 0.2-1 mm, containing more than 66% of brass. Sample 1 was separated in a corona-electrostatic field, generated by a standard electrode arrangement: a grounded rotating roll electrode (diameter 150 mm) and two high-voltage electrodes (wire-type dual corona electrode+tubular electrode). Processing of the other two samples was carried out in a custom-designed separator comprising an extended corona field generated between a matrix-type multineedle corona electrode and a roll electrode of large diameter (250 mm). Chemical analysis of the products showed that more than 90% of the brass can be recovered with a purity higher than 95%. The extended corona field electrode arrangement proposed in this paper seems to be a promising solution for the effective recycling of other granular wastes containing copper, aluminum and their alloys.
Sponsorship	IEEE Industry Applications Society
Starting Page	537
Ending Page	542
Page Count	6
File Size	301508
File Format	PDF
ISSN	00939994
Volume Number	35
Issue Number	3
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1999-05-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Electrostatics Electrodes Corona Recycling Wire Sorting Laboratories Testing Particle separators Chemical analysis
Content Type	Text
Resource Type	Article
Subject	Industrial and Manufacturing Engineering Control and Systems Engineering Electrical and Electronic Engineering

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