Method for preparing corundum particles

Details Method for preparing corundum particles Method for preparing corundum particles

1977-12-19

1980-03-18

Scovronek, Joseph

Chemistry: physical processes

Physical processes

Crystallization

23305A, 156623R, 156DIG61, 423625, B01D 902, B01J 1704, C01F 702

Patent

active

041937686

ABSTRACT:
A method for preparing corundum particles by a hydrothermal process which comprises adding fine particles of corundum to a starting alumina hydrate, and subjecting the resulting mixture to a hydrothermal reaction or treatment, the alumina in the alumina hydrate being deposited on the surfaces of the fine corundum particles while suppressing formation of new corundum crystal nuclei.

REFERENCES:
patent: 3101259 (1963-08-01), Sawyer
Yamaguchi, Bul. Chem. Soc. of Japan, vol. 38, No. 1, pp. 54-58, 1-1 1965.
Lavdise et al., Solid State Physics; vol. 12, pp. 204-207 & 220-222, 1960.
Chem. Ab., Tertian et al., vol. 52; col. 19396 b-1, No. 22, 11-25-58.
Sato, J. Appl. Chem., vol. 9, pp. 331-340, 6-1959.

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