Thursday, September 23, 2010

No. 172: New technology for recycling resins used in home electronics (September 23, 2010)

Panasonic developed a new technology to recycle resins used in home electronics. The new technology sorts out necessary resins from shredder dust containing several kinds of resins and metal pieces using near-infrared ray. It picks three kinds of resins of acrylonitrile butadiene styrene, polypropylene, and polystyrene at a precision of higher than 99%. If near-infrared light is irradiated to resin pieces, the waveform of reflected light varies with the kinds of resin pieces. Using this characteristic, the equipment made up of a belt conveyor and air injectors sorts out necessary resins. Because the equipment can eliminate resins that contain bromine, it is possible to make reprocessed resin that conforms to RoHS, the environment standards of the European Union. The demonstrative equipment has been set up. Panasonic plans to recycle 1,000 tons of 5,000 tons of shredder dust it produces annually in 2011.
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