Composite oxide particle material, method for producing same, filler, filler-containing slurry composition, and filler-containing resin composition
AssigneeAdmatechs Co., Ltd.
InventorsKeisuke Kurita, Nobutaka Tomita, Yuki Arai
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Abstract
An object of the present invention is to provide a composite oxide particle material formed of zinc molybdate having a high purity and a high circularity. The composite oxide particle material is formed of a composite oxide, of molybdenum and zinc, having an average particle diameter of 0.1 μm or more and 5.0 μm or less, a BET specific surface area of 1 m2/g or more and 20 m2/g or less, (peak intensity at 26.6° according to XRD)/(peak intensity at 24.2°) of 1.20 or more, an impurity concentration of 1 mass % or less, and a circularity of 0.90 or more. XRD is measured with CuKα radiation.
Claims16
A composite oxide particle material formed of a composite oxide of molybdenum and zinc, the composite oxide particle material having
- an average particle diameter of 0.1 μm or more and 5.0 μm or less,
- a BET specific surface area of 1 m2/g or more and 20 m2/g or less, and
- an impurity concentration, which is a concentration of metal molybdenum, metal zinc, molybdenum oxide and/or zinc oxide, of 1 mass % or less and a circularity of 0.90 or more,
- wherein the composite oxide particle material is produced by the method comprising continuously putting a particle raw material comprising metal molybdenum and metal zinc in a state of being dispersed in a carrier into flame in an oxidizing atmosphere, to burn the particle raw material, wherein a ratio (R/T) between:
- an oxygen amount R per unit time to be introduced into the oxidizing atmosphere;
- and an oxygen amount T per unit time necessary for completely oxidizing the particle raw material and a combustible gas is 1.2 or more.
Dependencies are inferred from the claim text.