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Application

99127216/02, 1999-12-30

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Start date

1999-12-30

(22)

Actual filing date

1999-12-30

(45)

Published

2000-10-10

(72)

Inventor

Danilov N.F.Kudrjashov V.P.Sedykh A.M.Kamenskikh A.A.Shashin A.K.Mitjanin L.M.Zelenov V.N.Konyshev A.A.Krasavin A.P.

(73)

Holder

Mezhotraslevoj Nauchno-Issledovatel'Skij Institut Ehkologii Toplivno-Ehnergeticheskogo KompleksaOao Chusovskoj Metallurgicheskij Zavod

METHOD OF PROCESSING OF VANADIUM-CONTAINING CONVERTER SLAGS Russian patent published in 2000 - IPC

Abstract RU 2157420 C1

FIELD: production of vanadium, vanadium and ferrovanadium compounds. SUBSTANCE: method includes slag oxidizing roasting, acid leaching of cinder, separation of vanadium and manganese compounds. Solution after acid leaching of cinder is oxidized with ozone to produce manganese-containing concentrate. Produced suspension is filtered with subsequent return of filtrate to acid leaching stage. Cake obtained by cinder acid leaching is treated with ammonia aqueous solution and filtered. Solution is cooled with separation of ammonium vanadate, sediment is filtered out, and filtrate is returned to stage of treatment of cake produced by cinder acid leaching. EFFECT: higher degree of vanadium recovery and ecological safety due to exclusion of formation of effluent water.

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RU 2 157 420 C1

Authors

Danilov N.F.

Kudrjashov V.P.

Sedykh A.M.

Kamenskikh A.A.

Shashin A.K.

Mitjanin L.M.

Zelenov V.N.

Konyshev A.A.

Krasavin A.P.

Dates

2000-10-10—Published

1999-12-30—Filed