Hitachi recently announced that it has developed from the hard disk drive (HDD) motor and air conditioning compressor on rare earth for recycling technologies. Hitachi plans to launch in 2013 recycling facilities, recycling is equivalent to a group, use 10% 50-60 tons.
According to Hitachi, Hitachi developed a device from the abandoned hard drive and compressor highly effective recycling of rare-earth magnet, and the use of chemicals from the crushing of neodymium magnet powder extraction and dy. Allegedly from a hard disk can be 2 to 3 grams of rare earth, from the compressor can be 20 to 30 grams.
Hard drive recovery unit through vibration and shock, magnet, respectively on the disc, and other parts for decomposition. An appliance can handle 20 million hard drives. Compressor equipment can handle corresponding to 6 million units.
To extract the magnet in rare earth, shall use the sulfuric acid and other chemicals, liquid waste disposal has become a challenge. Hitachi developed extraction methods use a special medium and does not require chemicals, but also conducive to environmental protection.
China was once restricted exports makes Japanese eager to ensure a steady supply of rare earth, Japan is increasingly rare for reuse, recycling technology in Hitachi, Toshiba also are developing in the mining of uranium ore process through special ways of recycling of rare electrolysis technology, in addition, Japan for another enterprise Showa Denko also expressed in Viet Nam to increase recycling of rare earth.
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