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2 530 188

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IPC

C22B11/00(2006-01-01)

C22B1/02(2006-01-01)

C01G55/00(2006-01-01)

(21) (22)

Application

2013140915/02, 2013-09-05

(24)

Start date

2013-09-05

(22)

Actual filing date

2013-09-05

(45)

Published

2014-10-10

(72)

Inventor

Il'Jashevich Viktor DmitrievichPavlova Elena IgorevnaKoritskaja Natal'Ja Georgievna

(73)

Holder

Otkrytoe Aktsionernoe Obshchestvo Zavod Tsvetnykh Metallov Imeni V.N. Gulidova"

METHOD OF PRODUCING OSMIUM TETRAOXIDE Russian patent published in 2014 - IPC C22B11/00 C22B1/02 C01G55/00

Abstract RU 2530188 C1

FIELD: chemistry.

SUBSTANCE: method of producing osmium tetraoxide includes loading a container with powdered osmium metal into a quartz tube which is placed in an electric furnace. Osmium is then oxidised while heating in a current of a dry oxygen-containing gas and the formed osmium tetraoxide is trapped in a cooled receiving flask. The oxygen-containing gas used for oxidising osmium is dry air which contains nitrogen oxides. After the oxidation process, nitrogen oxides are removed from the receiving flask by passing dry air.

EFFECT: obtaining solid osmium tetraoxide with high extraction of metal into the end product and which does not contain impurities of insoluble substances.

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RU 2 530 188 C1

Authors

Il'Jashevich Viktor Dmitrievich

Pavlova Elena Igorevna

Koritskaja Natal'Ja Georgievna

Dates

2014-10-10—Published

2013-09-05—Filed