METHOD OF PREPARING RARE-EARTH ELEMENT CHROMITES Russian patent published in 1998 - IPC

Abstract RU 2116252 C1

FIELD: manufacture of current conducting ceramics and catalysts. SUBSTANCE: rare-earth chromites are prepared by reacting aqueous solutions of oxygen containing rare-earth element compounds with oxygen containing chromium compounds in the presence of polyvinyl alcohol at polyvinyl alcohol to resulting chromite weight ratio of (0.1-1):1 to produce gel which is subsequently calcined at 700-900 C. EFFECT: improved properties of rare-earth element chromites.

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RU 2 116 252 C1

Authors

Poljak B.I.

Suponitskij Ju.L.

Zhigalkina I.A.

Dates

1998-07-27Published

1997-07-17Filed