Cobalt ion adsorbent, method for producing same and treatment apparatus for cobalt ion-containing liquid
AssigneeTitan Kogyo Kabushiki Kaisha
InventorsTakashi Sakuma, Makoto Komatsu, Takeshi Izumi, Nobuyuki Hashimoto, Toshimasa Seki, Takafumi Tanaka, Hidenori Ishioka
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Abstract
The present invention provides a particulate cobalt ion adsorbent which has a high adsorption capacity. A particulate cobalt ion adsorbent which contains potassium hydrogen dititanate hydrate represented by chemical formula K2-XHxO.2TiO2.nH2O (wherein x is 0.5 or more and 1.3 or less, and n is greater than 0), and no binder, wherein the particulate cobalt ion adsorbent has a particle size range of 150 μm or more and 1000 μm or less.
Claims12
A particulate cobalt ion adsorbent comprising potassium hydrogen dititanate hydrate represented by chemical formula K2-xHxO.2TiO2.nH2O wherein x is 0.5 or more and 1.3 or less, and n is greater than 0, and no binder, wherein the particulate cobalt ion adsorbent has a particle size range of 150 μm or more and 1000 μm or less.
A method for producing the particulate cobalt ion adsorbent comprising potassium hydrogen dititanate hydrate represented by chemical formula K2-xHxO.2TiO2.nH2O wherein x is 0.5 or more and 1.3 or less, and n is greater than 0, and no binder, wherein the particulate cobalt ion adsorbent has a particle size range of 150 μm or more and 1000 μm or less, comprising subjecting potassium dititanate represented by chemical formula K2O.2TiO2 to hydration and cation exchange between potassium ions (K+) and protons (H+) to obtain potassium hydrogen dititanate hydrate represented by chemical formula K2-xHxO.2TiO2.nH2O wherein x is 0.5 or more and 1.3 or less, and n is greater than 0, and granulating the potassium hydrogen dititanate hydrate without using a binder.
An apparatus for treating cobalt ion-containing liquid, filled with the particulate cobalt ion adsorbent comprising potassium hydrogen dititanate hydrate represented by chemical formula K2-xHxO.2TiO2.nH2O wherein x is 0.5 or more and 1.3 or less, and n is greater than 0, and no binder, wherein the particulate cobalt ion adsorbent has a particle size range of 150 μm or more and 1000 μm or less.
An apparatus for decontaminating radioactive cobalt, filled with the particulate cobalt ion adsorbent comprising potassium hydrogen dititanate hydrate represented by chemical formula K2-xHxO.2TiO2.nH2O wherein x is 0.5 or more and 1.3 or less, and n is greater than 0, and no binder, wherein the particulate cobalt ion adsorbent has a particle size range of 150 μm or more and 1000 μm or less.
A method for treating cobalt ion-containing liquid, using the particulate cobalt ion adsorbent comprising potassium hydrogen dititanate hydrate represented by chemical formula K2-xHxO.2TiO2.nH2O wherein x is 0.5 or more and 1.3 or less, and n is greater than 0, and no binder, wherein the particulate cobalt ion adsorbent has a particle size range of 150 μm or more and 1000 μm or less.
A method for decontaminating radioactive cobalt, using the particulate cobalt ion adsorbent comprising potassium hydrogen dititanate hydrate represented by chemical formula K2-xHxO.2TiO2.nH2O wherein x is 0.5 or more and 1.3 or less, and n is greater than 0, and no binder, wherein the particulate cobalt ion adsorbent has a particle size range of 150 μm or more and 1000 μm or less.
Dependencies are inferred from the claim text.