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Electrostatic separation technology for waste plastics-development of a high-purity type separator for plastics

2003; Linguagem: Inglês

10.1109/ecodim.2001.992424

Hiroyuki Daiku, T. Inoue, Masanori Tsukahara, Hidehiko Maehata, Kenji Kakeda,

Modular Robots and Swarm Intelligence

We succeeded in commercializing a high purity electrostatic separator. This paper gives a general description of the high-purity electrostatic separator and separation performance. The following are the main conclusions. (1) This separator can separate high purity plastics from mixed plastics. For example, applying this separator to a separation of polyethylene and polypropylene mixture, both plastics are separated with more than 99% purity. (2) The distinguishing characteristic of this separator is that charged plastics are supplied to an electrostatic field while touching a drum electrode. One kind of plastic is adsorbed securely on the drum by the electrostatic force. Therefore, this separator can realize high purity separation.