Uranium Extraction from Sea Water with Composite Adsorbents, (III) : Magnetic Properties of Composite Hydrous Titanium (IV)-Iron (II) Oxides and their Magnetic Separation
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概要
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Measurements were made of the extent of magnetization shown by composite hydrous titanium (IV)-iron (II) oxide adsorbents for use in uranium extraction from sea water. The possibility of removing the adsorbent by means of high-gradient magnetic separation was demonstrated by calculations based on a force balance model.<BR>Removal experiments were also carried out, which demonstrated that the composite hydrous oxide can be trapped effectively : A composite hydrous oxide with 1 : 1 Ti-to-Fe mole ratio, of 400625 mesh particle size, proved to be removed to 99.9% by a magnetic field of 2.5 kOe, with the slurry flowing at 20 cm/s through a filter matrix 50 cm long packed to 90% void with 100 pm diameter nickel wire stuffing.<BR>Together with the evaluations made of the electric power consumed by the high-gradient magnetic separators, the experimental results indicated the possibility of eco-nomically extractng uranium from sea water using these separators in combination with magnetic adsorbents.
著者
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NAKAJIMA Fumito
Hitachi Research Laboratory, Hitachi Ltd.
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OZAWA Yoshihiro
Energy Research Laboratory, Hitachi Ltd.
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MURATA Toshifumi
Energy Research Laboratory, Hitachi Ltd.
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YAMASHITA Hisao
Hitachi Research Laboratory, Hitachi Ltd.
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