METHOD FOR PRODUCTION OF POWDER OF HEXAGONAL BIPYRAMIDAL CRYSTALLINE SCANDIUM OXIDE Russian patent published in 1996 - IPC

Abstract RU 2065401 C1

FIELD: inorganic chemistry. SUBSTANCE: oxalate ion is fed into acid aqueous solution which contains scandium, ions of chlorine and ammonia and having pH not more 4. Thus prepared precipitate of scandium oxalate is allowed to stand within 0.5-1.0 h in mother solution. Said precipitate is separated of solution and then it is heated to 650-900 C. EFFECT: improves efficiency of the method. 4 cl

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RU 2 065 401 C1

Authors

Etsudzi Kimura[Jp]

Khisao Nakanisi[Jp]

Dates

1996-08-20Published

1988-05-25Filed