Process for producing particles of a metal compound

Details Process for producing particles of a metal compound Process for producing particles of a metal compound

2005-07-19

2005-07-19

Koslow, Carol M (Department: 1755)

Chemistry of inorganic compounds

Rare earth compound

C252S30140R, C252S30140P, C252S30140F, C252S30140H, C252S30140S, C252S301500, C252S30160R, C252S30160S, C252S30160F, C252S30160P, C423S592100, C423S593100

Reexamination Certificate

active

06919060

ABSTRACT:
The object of the present invention is to provide a process for producing particles of a metal compound having a spherical particle shape and an average particle diameter larger than 0.3 μm without employing high-pressure conditions. This object is achieved by a process for producing particle of a metal compound comprising a step of adjusting pH of an aqueous solution containing urea and at least one metal element to from 4 to 8, a step of heating the aqueous solution under normal pressure, a step of separating a solid from the solution, and a step of drying the solid.

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Patent Abstracts of Japan, vol. 013, No. 302, Jul. 12, 1989 (corresponds to JPA 10-93404, published Apr. 12, 1989).

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