METHOD OF PREPARING FERRIC OXIDE FOR FERRITES Russian patent published in 1998 - IPC

Abstract RU 2113409 C1

FIELD: industrial inorganic syntheses. SUBSTANCE: to exhausted etching solution, 1-2 wt % (based on weight of silicon oxide contained in etching solution) of polydimethyldiallylammonium fluoride is added. Resulting solution is filtered to remove precipitate and subjected to oxidative thermal decomposition. EFFECT: improved procedure.

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RU 2 113 409 C1

Authors

Jushchenko A.S.

Gonchar A.V.

Kurdjumov G.M.

Shurupov E.V.

Dates

1998-06-20—Published

1993-08-30—Filed