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2 351 668

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C1

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IPC

C22B34/22(2006-01-01)

C22B3/04(2006-01-01)

C01G31/02(2006-01-01)

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Application

2007135684/02, 2007-09-26

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Start date

2007-09-26

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Actual filing date

2007-09-26

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Published

2009-04-10

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Inventor

Karpov Anatolij AleksandrovichNaumov Nikolaj ViktorovichFilip'Ev Sergej NikolaevichVasin Evgenij AleksandrovichSmetanin Sergej DmitrievichVdovin Vitalij ViktorovichMakhnutin Andrej Anatol'EvichMizin Vladimir Grigor'EvichSirina Tat'Jana Petrovna

(73)

Holder

Otkrytoe Aktsionernoe Obshchestvo Metallurgicheskij Zavod"

METHOD OF PRODUCING VANADIUM PENTOXIDE Russian patent published in 2009 - IPC C22B34/22 C22B3/04 C01G31/02 

Abstract RU 2351668 C1

FIELD: chemistry.

SUBSTANCE: invention refers to method of producing high-quality vanadium pentoxide from hydrated deposited industrial vanadium pentoxide. Method includes as follows. Deposit is filtered, washed with water with following reagent processing by calcium-containing salt solutions to recover it from manganese. Reagent processing is enabled in ratio 3.0-8.5 g Ca2 + per 1 g MnO. Produced is supplied to reagent processing of new portions of hydrated deposited industrial vanadium pentoxide in the same Ca2 + to MnO ratio. As manganese is accumulated in solution, it is regenerated with adding calcium hydroxide suspension, containing CaO, or slaked lime of consumption 1.0-1.45 g CaO per 1 g MnO in stirring. After that manganese concentrate is isolated. Liquid phase is delivered back to reagent processing of new portions of hydrated deposited industrial vanadium pentoxide.

EFFECT: production of the second end product - manganese concentrate, cost saving of production and enhanced ecology.

1 dwg, 4 tbl, 6 ex

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RU 2 351 668 C1

Authors

Karpov Anatolij Aleksandrovich

Naumov Nikolaj Viktorovich

Filip'Ev Sergej Nikolaevich

Vasin Evgenij Aleksandrovich

Smetanin Sergej Dmitrievich

Vdovin Vitalij Viktorovich

Makhnutin Andrej Anatol'Evich

Mizin Vladimir Grigor'Evich

Sirina Tat'Jana Petrovna

Dates

2009-04-10—Published

2007-09-26—Filed

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