Fundamental Study on Magnetic Separation Method of Paramagnetic Substance Using the Control of Particles Diameter and Magnetic Force

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  • 粒子径制御と磁気力を利用した常磁性体の分離法
  • リュウシケイ セイギョ ト ジキリョク オ リヨウ シタ ジョウ ジセイタイ ノ ブンリホウ

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Abstract

Removal of radioactive crud in the nuclear power plant will become one of the most important issues. The effective technique, which is applicable at high-temperature area in the nuclear power plant does not exist. We focused on the magnetic property of the targeted crud materials and found they shows paramagnetism and hence high gradient magnetic separation (HGMS) was studied to remove the cruds in the nuclear power plant. In this study, we made a removal experiment of Hematite which simulated the cruds by means of high gradient magnetic separation. The magnetic separation experiment was conducted under constant flow velocity. We controlled pH and Zeta potential of the Hematite suspension to be dispersed. The experimental results were found to shows good agreements with the calculated results.

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