WO2002072473A1 - Procede de fabrication de carbure de tungstene et carbure de tungstene produit par ce procede - Google Patents

Procede de fabrication de carbure de tungstene et carbure de tungstene produit par ce procede Download PDF

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Publication number
WO2002072473A1
WO2002072473A1 PCT/RU2002/000081 RU0200081W WO02072473A1 WO 2002072473 A1 WO2002072473 A1 WO 2002072473A1 RU 0200081 W RU0200081 W RU 0200081W WO 02072473 A1 WO02072473 A1 WO 02072473A1
Authority
WO
WIPO (PCT)
Prior art keywords
mixture
product
vοlφρama
target
tungsten carbide
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/RU2002/000081
Other languages
English (en)
Russian (ru)
Inventor
Vladimir Ivanovich Vershinnikov
Tatiana Ivanovna Ignatieva
Aleksandr Vladimirovich Goziyan
Inna Petrovna Borovinskaya
Aleksandr Grigorievich Merzhanov
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
INSTITUT STRUKTURNOI MAKROKINETIKI I PROBLEM MATERIALOVEDENIYA ROSSIISKOI AKADEMII NAUK
Obschestvo S Ogranichennoi Otvestsvennostju 'promstroiservis'
Institut Strukturnoi Makrokinetiki Akademii Nauk
Original Assignee
INSTITUT STRUKTURNOI MAKROKINETIKI I PROBLEM MATERIALOVEDENIYA ROSSIISKOI AKADEMII NAUK
Obschestvo S Ogranichennoi Otvestsvennostju 'promstroiservis'
Institut Strukturnoi Makrokinetiki Akademii Nauk
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by INSTITUT STRUKTURNOI MAKROKINETIKI I PROBLEM MATERIALOVEDENIYA ROSSIISKOI AKADEMII NAUK, Obschestvo S Ogranichennoi Otvestsvennostju 'promstroiservis', Institut Strukturnoi Makrokinetiki Akademii Nauk filed Critical INSTITUT STRUKTURNOI MAKROKINETIKI I PROBLEM MATERIALOVEDENIYA ROSSIISKOI AKADEMII NAUK
Publication of WO2002072473A1 publication Critical patent/WO2002072473A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B32/00—Carbon; Compounds thereof
    • C01B32/90—Carbides
    • C01B32/914—Carbides of single elements
    • C01B32/949—Tungsten or molybdenum carbides
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/60—Particles characterised by their size
    • C01P2004/62—Submicrometer sized, i.e. from 0.1-1 micrometer
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/60—Optical properties, e.g. expressed in CIELAB-values
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/80—Compositional purity

Definitions

  • An accident of a wolfbase obtained by known methods may have a small size (0-1 ⁇ m) up to 9–25 ⁇ m, apart from 5
  • the method of radiation of such applications is long at a time and energy.
  • Izves ⁇ en s ⁇ s ⁇ b ⁇ lucheniya ma ⁇ is ⁇ alliches ⁇ g ⁇ ⁇ sh ⁇ a m ⁇ n ⁇ a ⁇ bida 5 v ⁇ l ⁇ ama ( ⁇ ezhduna ⁇ dnaya ⁇ ubli ⁇ atsiya 30.06.88, ⁇ ⁇ / 88/04649 ⁇ zayav ⁇ e ⁇ S ⁇ / ⁇ 887 / 03096, S04 ⁇ 35/56, 31/34 S01 ⁇ ) v ⁇ lyuchayuschy ⁇ ig ⁇ vlenie e ⁇ z ⁇ e ⁇ miches ⁇ y ⁇ m ⁇ nen ⁇ v mixture s ⁇ de ⁇ zhaschey v ⁇ l ⁇ am ⁇ vy ⁇ m ⁇ nen ⁇ ( voluminous ore containing more than 55 wt.% ⁇ ⁇ ); calcium carbide, aluminum, iron oxide and iron, initiation of burning, after being mixed in a mixture 0, the process automatically rises and increases at a temperature of 24 ° to
  • the known process is related to aluminum processes, the temperature of the process is controlled by the combination of aluminum and iron in the mixture.
  • the total process time is not less than 1-3 hours, and the output of the target product is not more than 90% of the total raw material.
  • the method includes the use of a mixture consisting of an organic component containing oxides and / or halide, which accounts for a total of 11% of the total weight of 10%.
  • the target additive which includes an inert diluent from the series: magnesium oxide and / or calcium in the amount of 4.28-22.72 wt.% and a lightly decomposing diluent from the poison: urea, is higher
  • the well-known method makes it possible to receive the aid of a wired car.
  • a well-known method will allow you to receive no more than 5% of the wolffam monster, as it is in ⁇ ⁇ 2 ⁇ . 4
  • the objective of the invention is the creation of a user-friendly method of obtaining a monochrom of a wolf with high yield and high rate. 5 ⁇ BASIC RELATIONSHIPS OF CARBIDE WOLFRAM The electronic reaction of the interaction of oxides of volfrum ⁇ ⁇ 3 , C (soot) and ⁇ is provided
  • a processed product provides a synthesis of up to 5 chemical products and consumes non-food products:
  • the chemical treatment of the isolated product at the first stage of the process for the removal of the processing products mainly the use of magnesium oxide
  • the surplus of the mixture is removed with a 5% cereal mixture (a 5% solution of potassium bicarbonate or an increase in concentration).
  • the chemical process depends on the volume of the processed product, the contents of the consumer products, however, the general 5 In this case, when in the target product is observed
  • An additional treatment is required after acid (in the third stage) in a diluted solution of sodium hydroxide or a high concentration of 2.5% or less.
  • the design of the carbide of the cubic modification is not provided, but it is not required to do so.
  • the basic part of the synthesis product is chemically processed in a diluted sulfuric acid of 5-10% of the profit of the removal of concentrate.
  • the product may be diluted (not higher than 2.5%) with a diluted solution
  • a comparatively low ratio of ⁇ ⁇ ⁇ 3 makes up 20 wt.%.
  • the powders are loaded into a ball mill from stainless steel and mixed for 1 hour.
  • the ready-mixed mixture of the original components is placed in the process, it is refilled with an argon before the initial pressure of 5;
  • After the end 7 ⁇ tsessa g ⁇ eniya, ⁇ ea ⁇ with s ⁇ de ⁇ zhimym ⁇ lazhdayu ⁇ , ⁇ du ⁇ vyg ⁇ uzhayu ⁇ , ⁇ delyayu ⁇ Part eg ⁇ and is ⁇ lzuyu ⁇ eg ⁇ in ⁇ sleduyuschi ⁇ ⁇ y ⁇ a ⁇ in ⁇ aches ⁇ ve tselev ⁇ y d ⁇ bav ⁇ i, ⁇ y imee ⁇ ⁇ e ⁇ niches ⁇ y ⁇ e ⁇ min - ⁇ etsi ⁇ li ⁇ vanny ⁇ du ⁇ and 5 ⁇ sn ⁇ vnuyu e
  • the synthesis product is processed in a diluted 10% sulfuric acid for 1 hour to remove the conventional reaction product, in this case, the magnesium product. Then the rest of the remaining black color is processed with a mixture of 5% concentration for no more than 1 hour. During this time,
  • the highlighted product is a dark-gray color, which, according to the X-ray analysis, provides a large selection of wolves Hexagonal modification.
  • 30 quantity of the mixture is 30 kg.
  • the powders are loaded into a ball mill from stainless steel and mixed for 1 hour.
  • the ready-mixed mixture of the original components is placed in the reaction, it is filled with an argon for the initial pressure of 15 itzPa, it is sealed and then locally ignited the mixture.
  • the synthesis product is processed in a diluted 5% sulfuric acid for 2.5 hours to remove, in this case, the necessary 5% magnesium oxide. Then the rest of the remaining black color is processed with a 4.5% concentrate mixture for no more than 1 hour.
  • the highlighted product is a dark-gray color, which, according to the X-ray analysis, provides a large volume of information from the region.
  • the yield of the target product is negative ⁇ ⁇ 3 of which is 99.8%.
  • Particle size analysis shows that It delivers its own particles with a primary size of 0.1-0.2 microns, and even has a particle size.
  • ⁇ ⁇ has a total content of impurities of 0.08 wt.%, Including, in wt.%: Inc. no more than 0.06, magnesium no more than 0.005, iron no more than 0.006, moisture + acid no more than 0.02.
  • oxides of wolfram ⁇ ⁇ 3 (45.0 wt.%), Magnesium (20.0 wt.%) And 5.0 wt.% Soot, add 23.0 wt.% 5 recycled 7 0 wt.% Ammonium chloride (the total amount of targeted additives is 30 wt.%).
  • the excess of soot in the comparatively low cost of ⁇ ⁇ ⁇ 3 is 50% by weight.
  • the powder is loaded into the mill and stirred for 1 hour.
  • the finished mixture is filled with the original components in the reaction, it is filled with an argon before the initial pressure of 2.5 réelle, 10 is pressurized, and then the local mixture is ignited. After the end of the burning process, the process is cooled, the product is unloaded and sent to the chemical process.
  • the yield of the target product is negative ⁇ ⁇ 3 is 98.0%.
  • the claimed method allows you to receive a mono-carbide wolfram with a high yield, not lower than 98.0% of the positive oxide of wolffrum.
  • the resulting package has a specific form of particles, which are expressed in the presence of large parts of the country and which are susceptible to disruption.
  • the method of producing a wolfbread is highly effective, the entire cycle of the product received is a closed loop process.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Furnace Details (AREA)
  • Carbon And Carbon Compounds (AREA)

Abstract

L'invention s'utilise en métallurgie des poudres et sert à fabriquer des alliages durs. Selon l'invention, le procédé de fabrication de carbure de tungstène consiste à préparer un mélange de composants qui comprend une partie exothermique contenant de l'oxyde de tungstène, du magnésium, de la suie, prise dans des quantités dépassant les quantités théoriques de 50 % au maximum, et d'un additif ad hoc dont la masse totale s'élève à 30 - 45 % de la masse de la partie exothermique et qui se présente comme au moins un composant parmi ce qui suit: produit recyclé, chlorure d'ammonium, oxyde de magnésium, polystyrène, polyéthylène, produit sensiblement recyclé ou mélange de celui-ci avec du chlorure d'ammonium; le procédé consiste à effectuer ensuite le traitement thermique du mélange en mode de combustion sous une pression d'argon égale ou supérieure à 0,50 MPa, à extraire chimiquement le produit final des produits de la réaction par le traitement de celui-ci avec de l'acide sulfurique dilué, et à traiter ensuite ledit produit avec un mélange à base de chrome provenant de la graphite libre. Le carbure de tungstène, obtenu par ce procédé, se présente comme une micropoudre de monocarbure de tungstène correspondant à la formule WC, dans sa modification hexagonale qui a l'aspect d'une poudre gris foncé dont la taille des particules s'élève sensiblement à 0,1 - 0,2 micromètres, qui ont des facettes naturelles. La poudre contient au maximum 0,1 % d'impuretés, y compris pas plus de 0,05 % de C.
PCT/RU2002/000081 2001-03-12 2002-03-11 Procede de fabrication de carbure de tungstene et carbure de tungstene produit par ce procede Ceased WO2002072473A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
RU2001106204 2001-03-12
RU2001106204/12A RU2200128C2 (ru) 2001-03-12 2001-03-12 Способ получения карбида вольфрама и карбид вольфрама, полученный этим способом

Publications (1)

Publication Number Publication Date
WO2002072473A1 true WO2002072473A1 (fr) 2002-09-19

Family

ID=20246846

Family Applications (1)

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PCT/RU2002/000081 Ceased WO2002072473A1 (fr) 2001-03-12 2002-03-11 Procede de fabrication de carbure de tungstene et carbure de tungstene produit par ce procede

Country Status (2)

Country Link
RU (1) RU2200128C2 (fr)
WO (1) WO2002072473A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110171975A (zh) * 2019-05-28 2019-08-27 株洲万融新材科技有限公司 一种大尺寸高密度无粘结相碳化钨靶材及其制备方法

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2388689C1 (ru) * 2008-12-18 2010-05-10 Институт катализа им. Г.К. Борескова Сибирского отделения Российской академии наук (статус государственного учреждения) Способ получения карбида вольфрама w2c
RU2418742C2 (ru) * 2009-08-14 2011-05-20 Институт химии твердого тела Уральского отделения Российской Академии наук Способ получения ультра-нанодисперсного порошка карбида
RU2495822C2 (ru) * 2011-11-07 2013-10-20 Учреждение Российской академии наук Институт химии твердого тела Уральского отделения РАН Способ получения ультрадисперсного порошка карбида вольфрама
RU2508249C1 (ru) * 2012-07-12 2014-02-27 Федеральное государственное бюджетное учреждение науки Институт химии твердого тела и механохимии Сибирского отделения Российской академии наук (ИХТТМ СО РАН) Способ получения нанодисперсных порошков карбидов вольфрама и титана методом свс
RU2562296C1 (ru) * 2014-03-20 2015-09-10 Федеральное государственное бюджетное учреждение науки "Институт химии твердого тела Уральского Отделения РАН" Способ получения ультрадисперсного порошка сложного карбида вольфрама и титана
GB201405114D0 (en) 2014-03-21 2014-05-07 Roberts Mark P Novel process and product
RU2667452C1 (ru) * 2017-09-29 2018-09-19 Общество с ограниченной ответственностью "Вириал" Способ получения наноразмерного порошка карбида вольфрама
RU2697140C1 (ru) * 2018-11-29 2019-08-12 Федеральное государственное бюджетное учреждение науки Институт структурной макрокинетики и проблем материаловедения им. А.Г. Мержанова Российской академии наук Способ получения порошка на основе тугоплавких соединений

Citations (4)

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Publication number Priority date Publication date Assignee Title
GB740547A (en) * 1951-10-12 1955-11-16 Deutsche Edelstahlwerke Ag Process for the production of carbides
SU481540A1 (ru) * 1973-01-22 1975-08-25 Государственный Ордена Октябрьской Революции Научно-Исследовательский И Проектный Институт Редкометаллической Промышленности "Гиредмет" Способ получени карбидов тугоплавких металлов
WO1988004649A1 (fr) * 1986-12-16 1988-06-30 Kennametal Inc. Poudre de monocarbure de tungstene macrocristallin et procede de production
RU2028273C1 (ru) * 1991-07-03 1995-02-09 Институт сверхтвердых материалов АН Украины Способ получения дисперсного порошка карбида вольфрама

Family Cites Families (3)

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Publication number Priority date Publication date Assignee Title
US4664899A (en) * 1983-06-15 1987-05-12 Gte Products Corporation Method of producing monotungsten carbide powder
RU2006510C1 (ru) * 1991-12-13 1994-01-30 Стопневич Александр Владимирович Способ получения неорганических материалов в режиме самораспространяющегося высокотемпературного синтеза
RU2006465C1 (ru) * 1992-05-14 1994-01-30 Всероссийский научно-исследовательский институт химической технологии Способ получения карбида вольфрама

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB740547A (en) * 1951-10-12 1955-11-16 Deutsche Edelstahlwerke Ag Process for the production of carbides
SU481540A1 (ru) * 1973-01-22 1975-08-25 Государственный Ордена Октябрьской Революции Научно-Исследовательский И Проектный Институт Редкометаллической Промышленности "Гиредмет" Способ получени карбидов тугоплавких металлов
WO1988004649A1 (fr) * 1986-12-16 1988-06-30 Kennametal Inc. Poudre de monocarbure de tungstene macrocristallin et procede de production
RU2028273C1 (ru) * 1991-07-03 1995-02-09 Институт сверхтвердых материалов АН Украины Способ получения дисперсного порошка карбида вольфрама

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
ZELIKMAN A.N. ET AL.: "Volfram", M., METALLURGIYA, 1978, pages 235 - 238 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110171975A (zh) * 2019-05-28 2019-08-27 株洲万融新材科技有限公司 一种大尺寸高密度无粘结相碳化钨靶材及其制备方法
CN110171975B (zh) * 2019-05-28 2021-09-07 株洲新融利实业有限公司 一种大尺寸高密度无粘结相碳化钨靶材及其制备方法

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