Method of producing yttrium oxide with particularly big particle

Details Method of producing yttrium oxide with particularly big particle Method of producing yttrium oxide with particularly big particle

1979-04-09

1980-12-09

Carter, Herbert T.

Chemistry of inorganic compounds

Rare earth compound

C01F 1700

Patent

active

042384672

ABSTRACT:
Yttrium oxide with particularly big particles is formed by reacting yttrium ions with oxalate ions so that yttrium oxalate is precipitated. The precipitated yttrium oxalate is maintained at a temperature of 90.degree.-100.degree. C. for a period from 1/2 to 24 hours for formation of a crystal form of yttrium oxalate which can be dried and ignited to oxide without disintergrating. The heat-treatment can be combined with the precipitation and also with the subsequent drying and ignition to yttrium oxide.

REFERENCES:
Moosath et al., "Zeit. fur anorg. und allgemeine Chemie", vol. 324, 1963, pp. 99-102.
Glasner et al., "Journal of Inorg. & Nuclear Chem.", vol. 25, _1963, pp. 1119-1127.
Vickery, "The Chemistry of Yttrium and Scandium", Pergamon _Press, N.Y., 1960, pp. 100-101.

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