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2 117 061

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C1

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IPC

(21) (22)

Application

96113532/02, 1996-07-02

(22)

Actual filing date

1996-07-02

(45)

Published

1998-08-10

(72)

Inventor

Rudin V.N.Azhikina Ju.V.Elizarov I.A.Seregin A.N.

(73)

Holder

Aktsionernoe Obshchestvo Zakrytogo Tipa

METHOD OF PROCESSING SPENT VANADIUM CATALYST Russian patent published in 1998 - IPC

Abstract RU 2117061 C1

FIELD: methods for processing spent vanadium catalyst by its roasting with production of concentrated vanadium-containing product. SUBSTANCE: roasting of catalyst is carried out at 900-1000 C with supply of flue gases to obtain in vanadium-containing product ration of V:S=1:(0.10-0.40) and VY2O5: MeMe2O = 1:(1.4-2.0), where MeMe2O is sum of oxides of alkali metals; separated sulfur-containing gases are directed to production of sulfuric acid. EFFECT: higher efficiency.

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RU 2 117 061 C1

Authors

Rudin V.N.

Azhikina Ju.V.

Elizarov I.A.

Seregin A.N.

Dates

1998-08-10—Published

1996-07-02—Filed

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