METHOD OF PRODUCING ULTRA-NANO-DISPERSED POWDER OF CARBIDE Russian patent published in 2011 - IPC C01B31/34 C01G41/00 C01G51/00 B82B1/00 

Abstract RU 2418742 C2

FIELD: process engineering.

SUBSTANCE: invention may be used in powder metallurgy. Proposed powder of oxide or mix of oxides of tungsten or cobalt is produced by neutralising water solution of appropriate inorganic salt or salts in the presence of black pre-added to solution in amount of MeO : C = 1 : (2-5) in terms of oxide or mix of oxides WO3 and/or Co3O4. Conversion into tungsten-carbide is performed by microwave radiation with frequency of 2450-3000 MHz at 700-1200 W.

EFFECT: production of tungsten and cobalt carbide powders with specific surface approximating to 6,93 m2/g and particle size of 100-400 nm.

2 cl, 3 dwg, 2 ex

Similar patents RU2418742C2

Title Year Author Number
METHOD OF PRODUCING ULTRAFINE TUNGSTEN CARBIDE POWDER 2011
  • Shvejkin Gennadij Petrovich
  • Nikolaenko Irina Vladimirovna
  • Kedin Nikolaj Aleksandrovich
RU2495822C2
METHOD OF OBTAINING OF ULTRADISPERSED POWDER OF COMPLEX TUNGSTEN AND TITANIUM CARBIDE 2014
  • Shvejkin Gennadij Petrovich
  • Nikolaenko Irina Vladimirovna
  • Kedin Nikolaj Aleksandrovich
RU2562296C1
METHOD OF PRODUCING ULTRA-DISPERSED TITANIUM CARBIDE POWDER 2014
  • Shvejkin Gennadij Petrovich
  • Nikolaenko Irina Vladimirovna
  • Kedin Nikolaj Aleksandrovich
RU2561614C1
METHOD OF PRODUCING ULTRAFINE POWDER OF VANADIUM CARBIDE 2015
  • Nikolaenko Irina Vladimirovna
  • Shvejkin Gennadij Petrovich
RU2588512C1
PROCEDURE FOR PRODUCTION OF ULTRA-NANO-DISPERSE POWDER OF TRANSITION METAL OXIDE OR MIXTURE OF OXIDES OF TRANSITION METALS 2008
  • Shvejkin Gennadij Petrovich
  • Nikolaenko Irina Vladimirovna
RU2400428C2
METHOD FOR OBTAINING NANODISPERSE POWDERS OF TUNGSTEN AND TITANIUM CARBIDES BY MEANS OF SHS METHOD 2012
  • Polubojarov Vladimir Aleksandrovich
  • Mali Vjacheslav Iosifovich
  • Korotaeva Zoja Alekseevna
  • Zhdanok Aleksandr Aleksandrovich
  • Pauli Irina Anatol'Evna
  • Stepanova Natal'Ja Vladimirovna
RU2508249C1
METHOD FOR PRODUCING CHROMIUM CARBIDE POWDER 2017
  • Nikolaenko Irina Vladimirovna
  • Shvejkin Gennadij Petrovich
RU2674526C1
METHOD OF PRODUCING TUNGSTEN CARBIDE NANO-SIZED POWDER (VERSIONS) 2012
  • Krasil'Nikov Vladimir Nikolaevich
  • Poljakov Evgenij Valentinovich
RU2497633C1
METHOD OF PRODUCTION OF ULTRAFINE POWDER OF COBALT METAL 2016
  • Nikolaenko Irina Vladimirovna
  • Shvejkin Gennadij Petrovich
RU2660549C2
METHOD FOR PRODUCING TUNGSTEN COBALT-DOPED OXIDE 2020
  • Zakharova Galina Stepanovna
  • Podvalnaya Natalya Vladimirovna
  • Baklanova Inna Viktorovna
RU2748755C1

RU 2 418 742 C2

Authors

Shvejkin Gennadij Petrovich

Nikolaenko Irina Vladimirovna

Dates

2011-05-20Published

2009-08-14Filed