Patent ID: 11890610
Assignee: TITAN KOGYO KABUSHIKI KAISHA
Field: Chemical engineering (Chemistry)
Classification: CPC B  C  G | IPC B  C  G

Claim 11:
12. The particulate cobalt ion adsorbent according to claim 1, wherein the particulate cobalt ion adsorbent has an X-ray diffraction peak at 2θ=8.5±2.0° in X-ray diffraction using Cukα-ray as an X-ray source, and wherein the particulate cobalt ion adsorbent exhibits a cobalt adsorption performance represented by B.V. of 8000 m3/m3 or more at breakthrough at which a percentage of a cobalt concentration in water at an outlet (C) based on a cobalt concentration in water at an inlet (C0) is greater than 3%, wherein the particulate cobalt ion adsorbent is filled in a cylindrical column having an inner diameter of 15.96 mm to a layer height of 10 cm, and a simulated contaminated seawater comprising 3 g/kg of a normal salt, 1 mg/kg of cobalt, 5 mg/kg of magnesium, and 1 mg/kg of cesium is passed through the column at a flow rate of 6.5 mL/min (a linear water flow velocity of 2 m/h and a space velocity of 20 h−1).