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2 638 396

(13)

(51)

IPC

C01B35/04(2006-01-01)

C01G31/00(2006-01-01)

(21) (22)

Application

2016118930, 2016-05-16

(24)

Start date

2016-05-16

(22)

Actual filing date

2016-05-16

(45)

Published

2017-12-13

(72)

Inventor

Krutskij Yurij LeonidovichDyukova Kseniya DmitrievnaBannov Aleksandr GeorgievichKurmashov Pavel BorisovichKrutskaya Tatyana Mikhajlovna

(73)

Holder

Federalnoe Gosudarstvennoe Byudzhetnoe Obrazovatelnoe Uchrezhdenie Vysshego Obrazovaniya Gosudarstvennyj Tekhnicheskij Universitet"

METHOD OF PRODUCING VANADIUM DIBORIDE Russian patent published in 2017 - IPC C01B35/04 C01G31/00

Abstract RU 2638396 C2

FIELD: chemistry.

SUBSTANCE: method of producing vanadium diboride includes heating a mixture of vanadium oxide V₂O₃, boron carbide, and carbon nanofibres in a gaseous medium in a carbon crucible. This mixture is prepared in accordance with stoichiometry for the production of vanadium diboride by reaction V₂O₃+B₄C+2C=2VB₂+3CO. Heating is carried out at a temperature of 1300-1500°C for 20-30 minutes. The gas medium includes carbon monoxide (II) and nitrogen and is formed when the crucible carbon is oxidized with air oxygen. The volume ratio of CO:N₂ is 99.96:0.04.

EFFECT: invention makes it possible to simplify the production of vanadium diboride by eliminating the use of argon as a gaseous medium.

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RU 2 638 396 C2

Authors

Krutskij Yurij Leonidovich

Dyukova Kseniya Dmitrievna

Bannov Aleksandr Georgievich

Kurmashov Pavel Borisovich

Krutskaya Tatyana Mikhajlovna

Dates

2017-12-13—Published

2016-05-16—Filed