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2 543 902

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(51)

IPC

C01G37/00(2006-01-01)

C01B31/30(2006-01-01)

(21) (22)

Application

2013118784/05, 2013-04-23

(24)

Start date

2013-04-23

(22)

Actual filing date

2013-04-23

(45)

Published

2015-03-10

(72)

Inventor

Krutskij Jurij LeonidovichDjukova Ksenija DmitrievnaBannov Aleksandr GeorgievichKurmashov Pavel BorisovichSokolov Vladimir Vasil'EvichPichugin Andrej Jur'Evich

(73)

Holder

Federal'Noe Gosudarstvennoe Bjudzhetnoe Obrazovatel'Noe Uchrezhdenie Vysshego Professional'Nogo Obrazovanija Gosudarstvennyj Tekhnicheskij Universitet"Federal'Noe Gosudarstvennoe Bjudzhetnoe Uchrezhdenie Nauki Neorganicheskoj Khimii Im. A.V. Nikolaeva" Sibirskogo Otdelenija Rossijskoj Akademii Nauk

METHOD OF OBTAINING CHROME CARBIDE Russian patent published in 2015 - IPC C01G37/00 C01B31/30

Abstract RU 2543902 C2

FIELD: chemistry.

SUBSTANCE: invention can be used in production of cutting instrument, in wear-resistant overlaying welding, for obtaining composite electrochemical coatings and contact material, possessing higher resistance to erosive impact of electric arc. Method of obtaining chrome carbide includes heating charge from mixture of chrome (III) oxide and carbon to temperature 1100-1350°C. Chrome oxide (III) and carbon are taken in weight ratio 74.5:25.5. The process is carried out in crucible from glassy carbon under atmospheric pressure.

EFFECT: invention makes it possible to simplify the process and prevent partial oxidation of charge carbon.

2 cl

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RU 2 543 902 C2

Authors

Krutskij Jurij Leonidovich

Djukova Ksenija Dmitrievna

Bannov Aleksandr Georgievich

Kurmashov Pavel Borisovich

Sokolov Vladimir Vasil'Evich

Pichugin Andrej Jur'Evich

Dates

2015-03-10—Published

2013-04-23—Filed