14:30 〜 14:45
▼ [15p-A202-4] Magnetic separation of Dy ions in aqueous solutions
キーワード：magnetic separation, Dy, rare earth
Magnetic separation is a physical technique that separates mixed substances using a magnetic force.In this study, the target of magnetic separation is rare earth ions. Rare earth metals are indispensable for producing high-tech products, but whose supply is expected to become tighter. The recycling of them is indispensable for a stable supply.
We researched about magnetic separation experiment of rare-earth ions in aqueous solution. A 0.26 wt.% aqueous solution of (99.5 %, Wako Chemical) was soaked into a sample tube with 330 mm length and f30 mm ID, and set at a high gradient position in a horizontal superconducting magnet. After the fixed migration time, for example 12 h, small amount of liquid was sampled from the different position. Dy ion concentration was measured by using an inductively coupled plasma mass spectrometry system (Agilent, G3281A). At x = 266 mm, which position corresponds to magnetic force field of BdB/dx = 82 T2/m, Dy ions were migrated and concentrated toward the center of the magnet boor.
We researched about magnetic separation experiment of rare-earth ions in aqueous solution. A 0.26 wt.% aqueous solution of (99.5 %, Wako Chemical) was soaked into a sample tube with 330 mm length and f30 mm ID, and set at a high gradient position in a horizontal superconducting magnet. After the fixed migration time, for example 12 h, small amount of liquid was sampled from the different position. Dy ion concentration was measured by using an inductively coupled plasma mass spectrometry system (Agilent, G3281A). At x = 266 mm, which position corresponds to magnetic force field of BdB/dx = 82 T2/m, Dy ions were migrated and concentrated toward the center of the magnet boor.