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RU2016138637A - METHOD FOR PRODUCING METAL COBALT ULTRA-DISPERSED POWDER - Google Patents

METHOD FOR PRODUCING METAL COBALT ULTRA-DISPERSED POWDER Download PDF

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Publication number
RU2016138637A
RU2016138637A RU2016138637A RU2016138637A RU2016138637A RU 2016138637 A RU2016138637 A RU 2016138637A RU 2016138637 A RU2016138637 A RU 2016138637A RU 2016138637 A RU2016138637 A RU 2016138637A RU 2016138637 A RU2016138637 A RU 2016138637A
Authority
RU
Russia
Prior art keywords
metal cobalt
producing metal
dispersed powder
cobalt
ammonium hydroxide
Prior art date
Application number
RU2016138637A
Other languages
Russian (ru)
Other versions
RU2660549C2 (en
RU2016138637A3 (en
Inventor
Ирина Владимировна Николаенко
Геннадий Петрович Швейкин
Original Assignee
Федеральное государственное бюджетное учреждение науки "Институт химии твердого тела Уральского Отделения Российской Академии наук"
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Application filed by Федеральное государственное бюджетное учреждение науки "Институт химии твердого тела Уральского Отделения Российской Академии наук" filed Critical Федеральное государственное бюджетное учреждение науки "Институт химии твердого тела Уральского Отделения Российской Академии наук"
Priority to RU2016138637A priority Critical patent/RU2660549C2/en
Publication of RU2016138637A publication Critical patent/RU2016138637A/en
Publication of RU2016138637A3 publication Critical patent/RU2016138637A3/ru
Application granted granted Critical
Publication of RU2660549C2 publication Critical patent/RU2660549C2/en

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B23/00—Obtaining nickel or cobalt
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F9/00—Making metallic powder or suspensions thereof
    • B22F9/16—Making metallic powder or suspensions thereof using chemical processes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B82—NANOTECHNOLOGY
    • B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
    • B82Y30/00—Nanotechnology for materials or surface science, e.g. nanocomposites
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G51/00—Compounds of cobalt
    • C01G51/04—Oxides

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Nanotechnology (AREA)
  • Materials Engineering (AREA)
  • Composite Materials (AREA)
  • General Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Physics & Mathematics (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Manufacture Of Metal Powder And Suspensions Thereof (AREA)
  • Inorganic Compounds Of Heavy Metals (AREA)

Claims (2)

1. Способ получения ультрадисперсного порошка металлического кобальта путем термообработки кислородсодержащего соединения кобальта в газовой среде, отличающийся тем, что предварительно в диапазоне рН 8-12 водный раствор оксалата или нитрата кобальта обрабатывают раствором гидроксида натрия или калия или аммония в присутствии сажи, взятой в соотношении Co3O4÷C=1÷4 (в пересчете на оксид), а термообработку осуществляют микроволновым излучением в токе аргона со скоростью подачи 5-6 л/час на частоте 2450-3000 Мгц и мощности 700-1000 Вт при температуре 900°C в течение 15 мин со скоростью нагрева 20°C/мин до 500°C и 10°C/мин до 900°C.1. A method of producing ultrafine metal cobalt powder by heat treatment of an oxygen-containing cobalt compound in a gaseous medium, characterized in that in the range of pH 8-12, an aqueous solution of cobalt oxalate or cobalt nitrate is treated with a solution of sodium or potassium or ammonium hydroxide in the presence of soot taken in the Co ratio 3 O 4 ÷ C = 1 ÷ 4 (in terms of oxide), and heat treatment is carried out by microwave radiation in an argon stream with a feed rate of 5-6 l / h at a frequency of 2450-3000 MHz and a power of 700-1000 W at a temperature of 900 ° C for 15 minutes at a heating rate of 20 ° C / min to 500 ° C and 10 ° C / min to 900 ° C. 2. Способ по п. 1, отличающийся тем, что в случае обработки гидроксидом аммония NH4OH используют диапазон рН 8-10.2. The method according to p. 1, characterized in that in the case of treatment with ammonium hydroxide NH 4 OH, a pH range of 8-10 is used.
RU2016138637A 2016-09-29 2016-09-29 Method of production of ultrafine powder of cobalt metal RU2660549C2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RU2016138637A RU2660549C2 (en) 2016-09-29 2016-09-29 Method of production of ultrafine powder of cobalt metal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU2016138637A RU2660549C2 (en) 2016-09-29 2016-09-29 Method of production of ultrafine powder of cobalt metal

Publications (3)

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RU2016138637A true RU2016138637A (en) 2018-04-02
RU2016138637A3 RU2016138637A3 (en) 2018-05-25
RU2660549C2 RU2660549C2 (en) 2018-07-06

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Family Applications (1)

Application Number Title Priority Date Filing Date
RU2016138637A RU2660549C2 (en) 2016-09-29 2016-09-29 Method of production of ultrafine powder of cobalt metal

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RU (1) RU2660549C2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112846213A (en) * 2021-01-05 2021-05-28 有研工程技术研究院有限公司 Preparation method of low-oxygen high-dispersion nano spherical cobalt powder
CN119143595A (en) * 2024-11-15 2024-12-17 赣州有色冶金研究所有限公司 Preparation method of superfine square cobalt oxalate and superfine spherical cobalt powder

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5968228A (en) * 1998-09-04 1999-10-19 Korea Advanced Institute Of Science And Technology Process for preparing cobalt metals using nitrogen reductant
RU2492029C1 (en) * 2012-02-27 2013-09-10 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Иркутский государственный технический университет" (ФГБОУ ВПО "ИрГТУ") Method of producing cobalt nano-sized powders (versions)
RU2489509C1 (en) * 2012-04-27 2013-08-10 Открытое акционерное общество "Ведущий научно-исследовательский институт химической технологии" Processing method of cobalt-containing wastes
RU2534323C1 (en) * 2013-08-08 2014-11-27 Федеральное государственное бюджетное учреждение науки Институт химии и технологии редких элементов и минерального сырья им. И.В. Тананаева Кольского научного центра Российской академии наук (ИХТРЭМС КНЦ РАН) Metallic cobalt obtaining method
RU2551034C1 (en) * 2013-11-07 2015-05-20 Федеральное государственное бюджетное учреждение науки Институт металлургии и материаловедения им. А.А. Байкова Российской академии наук (ИМЕТ РАН) Method of cobaltous oxide co3o4 production for hard alloys manufacturing

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112846213A (en) * 2021-01-05 2021-05-28 有研工程技术研究院有限公司 Preparation method of low-oxygen high-dispersion nano spherical cobalt powder
CN119143595A (en) * 2024-11-15 2024-12-17 赣州有色冶金研究所有限公司 Preparation method of superfine square cobalt oxalate and superfine spherical cobalt powder

Also Published As

Publication number Publication date
RU2660549C2 (en) 2018-07-06
RU2016138637A3 (en) 2018-05-25

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Effective date: 20190930