Metal oxide powder, and method for producing same
AssigneeDenka Company Limited
InventorsTakaaki MINAMIKAWA, Hiroyuki SHIOTSUKI, Koji MIYAZAKI
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Abstract
A metal oxide powder in which the metal is other than uranium, iron and titanium, and, in the metal oxide powder, the content rate of uranium is 1.0 ppb by mass or less, the content rate of iron is 100 ppm by mass or less in terms of Fe2O3, the content rate of titanium in terms of TiO2 oxide is 8 ppm by mass or less. Included is a method of producing a metal oxide powder which removes impurities from a metal oxide powder so that a metal oxide powder having a high purity can be obtained, and a metal oxide powder produced according to the method.
Claims11
A method of producing a metal oxide powder, comprising a heating step in the presence of a halogen, which heats a metal oxide in the presence of a halogen.
A metal oxide powder, wherein the metal is a metal other than uranium, iron and titanium, and, in the metal oxide powder, the content rate of uranium is 1.0 ppb by mass or less, the content rate of iron is 100 ppm by mass or less in terms of Fe2O3, and the content rate of titanium in terms of TiO2 is 8 ppm by mass or less.
Dependencies are inferred from the claim text.