CA2221963C - Agglomerats de cobalt metallique, leur procede de fabrication et leur application - Google Patents

Agglomerats de cobalt metallique, leur procede de fabrication et leur application Download PDF

Info

Publication number
CA2221963C
CA2221963C CA002221963A CA2221963A CA2221963C CA 2221963 C CA2221963 C CA 2221963C CA 002221963 A CA002221963 A CA 002221963A CA 2221963 A CA2221963 A CA 2221963A CA 2221963 C CA2221963 C CA 2221963C
Authority
CA
Canada
Prior art keywords
cobalt metal
cobalt
metal agglomerates
production
carbonate
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.)
Expired - Fee Related
Application number
CA002221963A
Other languages
English (en)
Other versions
CA2221963A1 (fr
Inventor
Astrid Gorge
Juliane Meese-Marktscheffel
Armin Olbrich
Frank Schrumpf
Dirk Naumann
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.)
HC Starck GmbH
Original Assignee
HC Starck GmbH
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
Priority claimed from DE19519331A external-priority patent/DE19519331C1/de
Application filed by HC Starck GmbH filed Critical HC Starck GmbH
Publication of CA2221963A1 publication Critical patent/CA2221963A1/fr
Application granted granted Critical
Publication of CA2221963C publication Critical patent/CA2221963C/fr
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • 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
    • B22F9/18—Making metallic powder or suspensions thereof using chemical processes with reduction of metal compounds
    • B22F9/20—Making metallic powder or suspensions thereof using chemical processes with reduction of metal compounds starting from solid metal compounds
    • B22F9/22—Making metallic powder or suspensions thereof using chemical processes with reduction of metal compounds starting from solid metal compounds using gaseous reductors
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/36—Selection of substances as active materials, active masses, active liquids
    • H01M4/48—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides
    • H01M4/52—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/01—Particle morphology depicted by an image
    • C01P2004/03—Particle morphology depicted by an image obtained by SEM
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/30—Particle morphology extending in three dimensions
    • C01P2004/32—Spheres
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/50—Agglomerated particles
    • 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
    • C01P2004/61—Micrometer sized, i.e. from 1-100 micrometer
    • 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
    • C01P2006/12—Surface area
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

Landscapes

  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Electrochemistry (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Powder Metallurgy (AREA)

Abstract

L'invention concerne des agglomérats de cobalt métallique composés de particules primaires en forme de cacahuète, leur procédé de fabrication et leur application. Les particules primaires présentent une granulométrie moyenne comprise entre 0,1 et 0,7 mu m. Le procédé est caractérisé en ce que, dans une première étape, une solution aqueuse de sel de cobalt (II), de formule CoX2, où X = Cl, NO et/ou 1/2 SO, est mise à réagir avec des solutions ou des suspensions aqueuses de carbonates alcalins et/ou de carbonates d'ammonium et/ou d'hydrogénocarbonates d'ammonium, à des températures comprises entre 40 DEG C et 100 DEG C, ce qui conduit à la formation d'un carbonate de cobalt basique. Celui-ci est séparé et lavé exempt de sel jusqu'à neutralité. Le carbonate de cobalt basique ainsi obtenu est transformé en Co(OH)2, par addition d'une lessive alcaline, oxydé, au moyen d'un oxydant, en hétérogénite CoO(OH), cette dernière étant réduite, par un réducteur, en agglomérats de cobalt métallique. Ces agglomérats sont appropriés pour la fabrication de corps frittés en cobalt et d'électrodes positives dans des batteries secondaires alcalines.
CA002221963A 1995-05-26 1996-05-14 Agglomerats de cobalt metallique, leur procede de fabrication et leur application Expired - Fee Related CA2221963C (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19519331.8 1995-05-26
DE19519331A DE19519331C1 (de) 1995-05-26 1995-05-26 Kobaltmetallagglomerate, Verfahren zu ihrer Herstellung sowie deren Verwendung
PCT/EP1996/002049 WO1996037324A1 (fr) 1995-05-26 1996-05-14 Agglomerats de cobalt metallique, leur procede de fabrication et leur application

Publications (2)

Publication Number Publication Date
CA2221963A1 CA2221963A1 (fr) 1996-11-28
CA2221963C true CA2221963C (fr) 2007-02-06

Family

ID=37734895

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002221963A Expired - Fee Related CA2221963C (fr) 1995-05-26 1996-05-14 Agglomerats de cobalt metallique, leur procede de fabrication et leur application

Country Status (1)

Country Link
CA (1) CA2221963C (fr)

Also Published As

Publication number Publication date
CA2221963A1 (fr) 1996-11-28

Similar Documents

Publication Publication Date Title
CA2332889C (fr) Poudres de metal et d'alliage pour le frittage, a utiliser dans la metallurgie des poudres, leur procede de production et leur utilisation
TW318155B (fr)
CA2377152C (fr) Procede de fabrication d'hydroxyde de cobalt ou d'hydroxydes de cobalt melanges haute densite et a granulometrie elevee, et produit obtenu conformement audit procede
US6019813A (en) Cobalt metal agglomerates, process for producing the same and their use
AU700716B2 (en) Cobalt metal agglomerates, process for the production thereof and the use thereof
CA1254874A (fr) Precurseur oxyde de catalyseur de fer, et sa production
KR100423456B1 (ko) 합금분말 및 이를이용한 다이아몬드공구 제조방법
JP2000248304A (ja) 多孔質金属粉末およびその製造方法
JP2002532247A (ja) 被担持触媒の調製方法
CA2221963C (fr) Agglomerats de cobalt metallique, leur procede de fabrication et leur application
CA2221773C (fr) Agglomeres de metaux au cobalt, leur procede de production et leur utilisation
JP7650073B2 (ja) 易破砕性ダイヤモンド砥粒の製造方法
RU97122087A (ru) Агломераты металлического кобальта, способ их получения и их применение
RU97122088A (ru) Агломераты металлического кобальта, способ их получения и их применение
RU2178933C1 (ru) Способ переработки отработанных щелочных аккумуляторов
US4761177A (en) Production of cobalt and nickel powder
CA2331707A1 (fr) Reduction de poudre d'oxyde de nb ou de ta par metal gazeux leger ou l'un de ses hydrures
JPH10251714A (ja) 粉末冶金用銀粉末の製造方法
JPH0225401B2 (fr)
CN121573659A (zh) 磷酸铁的合成方法及磷酸铁

Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed

Effective date: 20150514