Powder, method of producing powder and adsorption apparatus
AssigneeHoya Corporation
InventorShintaro Kobayashi
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Abstract
The present invention provides that powder is mainly constituted from secondary particles of hydroxyapatite. The secondary particles are obtained by drying a slurry containing primary particles of hydroxyapatite and aggregates thereof and granulating the primary particles and the aggregates. A bulk density of the powder is 0.65 g/mL or more and a specific surface area of the secondary particles is 70 m2/g or more. The powder of the present invention has high strength and is capable of exhibiting superior adsorption capability when it is used for an adsorbent an adsorption apparatus has.
Claims4
A powder comprising mainly hydroxyapatite,
- wherein the powder is obtained by preparing a slurry containing primary particles of the hydroxyapatite and aggregates thereof, physically crushing the aggregates in the slurry, drying the slurry containing the primary particles of the hydroxyapatite and the crushed aggregates thereof, granulating the dried slurry to obtain granulated particles and sintering the granulated particles at a sintering temperature, and
- wherein the powder has a bulk density of about 0.65 g/mL or more and a specific surface area of about 25 m2/g to about 52 m2/g.
Dependencies are inferred from the claim text.