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2 040 567

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(51)

IPC

(21) (22)

Application

4921052/02, 1991-03-20

(22)

Actual filing date

1991-03-20

(45)

Published

1995-07-25

(72)

Inventor

Zhurkova Zinaida AndreevnaDzhabiev Khanlar Gasan OglyLur'E Jurij SemenovichMatjasov Nikolaj Grigor'Evich

(73)

Holder

Zhurkova Zinaida AndreevnaDzhabiev Khanlar Gasan OglyLur'E Jurij SemenovichMatjasov Nikolaj Grigor'Evich

BERYLLIUM RAW MATERIAL REPROCESSING METHOD Russian patent published in 1995 - IPC

Abstract RU 2040567 C1

FIELD: production of beryllium hydroxide. SUBSTANCE: method involves melting concentrate with alkaline fluxes and metal beryllium-bearing wastes, with carbonic reducer in an amount of 5-30% of concentrate weight and black iron oxide in an amount of 1-3% of concentrate weight being introduced into burden; pelletizing melt in water; grinding; subjecting to magnetic separation; separating magnetic fraction; sulfatizing non-magnetic fraction by sulfuric acid and water leaching; precipitating beryllium hydroxide. EFFECT: increased efficiency of method. 1 tbl

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RU 2 040 567 C1

Authors

Zhurkova Zinaida Andreevna

Dzhabiev Khanlar Gasan Ogly

Lur'E Jurij Semenovich

Matjasov Nikolaj Grigor'Evich

Dates

1995-07-25—Published

1991-03-20—Filed