Ultrafine particle of rutile-type titanium oxide
OwnerToyoharu Hayashi, Norio Nakayama +1inventors
InventorsToyoharu Hayashi, Norio Nakayama, Tomonori Iijima
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Abstract
It is provided ultrafine particles of a rutile titanium oxide obtained by maintaining the pH of an aqueous solution of a titanium compound having a Ti concentration of from 0.07 to 5 mol/L in the range of −1 to 3 in the presence of a chelating agent. Such ultrafine particles of a rutile titanium oxide are useful for photocatalysts, high refractive index materials, ultraviolet absorbing materials and the like.
Claims28
Ultrafine particles of a rutile-type titanium oxide obtained by maintaining the pH of an aqueous solution of a titanium compound having a Ti concentration of 0.07 to 5 mol/L in the range of −1 to 3 in the presence of a chelating agent.
A method for preparing ultrafine particles of a rutile-type titanium oxide, comprising maintaining the pH of an aqueous solution of a titanium compound having a Ti concentration of 0.07 to 5 mol/L in the range of −1 to 3 in the presence of a chelating agent.
An aggregate comprising ultrafine particles of a rutile-type titanium oxide obtained by maintaining the pH of an aqueous solution of a titanium compound having a Ti concentration of 0.07 to 5 mol/L in the range of −1 to 3 in the presence of a chelating agent.
A method for preparing an aggregate comprising ultrafine particles of a rutile-type titanium oxide, comprising maintaining the pH of an aqueous solution of a titanium compound having a Ti concentration of 0.07 to 5 mol/L in the range of −1 to 3 in the presence of a chelating agent.
Dependencies are inferred from the claim text.