FI66435C - Foerfarande foer framstaellning av finfoerdelat koboltpulver - Google Patents

Foerfarande foer framstaellning av finfoerdelat koboltpulver Download PDF

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Publication number
FI66435C
FI66435C FI915/74A FI91574A FI66435C FI 66435 C FI66435 C FI 66435C FI 915/74 A FI915/74 A FI 915/74A FI 91574 A FI91574 A FI 91574A FI 66435 C FI66435 C FI 66435C
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FI
Finland
Prior art keywords
cobalt
solution
precipitate
particles
carbonate
Prior art date
Application number
FI915/74A
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English (en)
Finnish (fi)
Other versions
FI66435B (fi
Inventor
Wasyl Kunda
Winfried J Huppmann
Original Assignee
Sherritt Gordon Mines Ltd
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 Sherritt Gordon Mines Ltd filed Critical Sherritt Gordon Mines Ltd
Publication of FI66435B publication Critical patent/FI66435B/fi
Application granted granted Critical
Publication of FI66435C publication Critical patent/FI66435C/fi

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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
    • C22B23/04—Obtaining nickel or cobalt by wet processes
    • C22B23/0453—Treatment or purification of solutions, e.g. obtained by leaching
    • C22B23/0461—Treatment or purification of solutions, e.g. obtained by leaching by chemical methods
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
    • H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
    • H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
    • H01F1/032—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials
    • H01F1/04—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials metals or alloys
    • H01F1/06—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials metals or alloys in the form of particles, e.g. powder
    • H01F1/061—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials metals or alloys in the form of particles, e.g. powder with a protective layer

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Manufacturing & Machinery (AREA)
  • Power Engineering (AREA)
  • Inorganic Compounds Of Heavy Metals (AREA)
  • Hard Magnetic Materials (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Manufacture Of Metal Powder And Suspensions Thereof (AREA)
  • Gas Separation By Absorption (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
  • Catalysts (AREA)

Claims (11)

1. Förfarande för framställning av finfördelat koboltpulver, kännetecknat därav, att det omfattar framställning av en kobolt(II)ammin-ammoniumsulfatvattenlösning, väri molförhällan-det mellan fri ammoniak och kobolt är minst ca 2,0; upphettning av nämnda lösning i ett slutet reaktionskärl tili en temperatur av ca 50 - 120°C; effektiv omröring av den upphettade lösningen och reaktion av densanuna med koldioxid under ett partiellt tryck hos koldioxiden inom omrädet ca 1,4 - 21 kp/cm , varvid kobolt utfälls ur lösningen i form av finfördelat kobolt(II)karbonat; separering av kobolt(II)karbonatfällningen frän lösningen; eventuell utfäll-ning av en oantändlig oxid bildande förening pä kobolt(II)karbo-natfällningens partiklar; torreducering av den separerade kobolt(II) karbonatfällningen i en väteatmosfär vid en temperatur av ca 400 -700°C, varvid fällningen reduceras tili metalliskt koboltpulver som innehäller mindre än 2 % syre, och avkylning av det metalliska ko-boltpulvret i icke-oxiderande miljö innan det utsätts för luft.
2. Förfarande enligt patentkravet 1, kännetecknat därav, att kobolt(II)karbonatfällningen males i vätt tillständ i en kulkvarn för minskande av storleken av fällningens partiklar innan fällningen reduceras till metallisk form genom reaktion med väte.
3. Förfarande enligt patentkravet 1 för framställning av av sig själva oantändliga magnetiska koboltpartiklar, kännetecknat därav, att det framställs partiklar med en storlek av ca 1 ^pm eller mindre genom att utfälla en sadan mängd av den en oantändlig oxid bildande föreningen pä kobolt(II)karbonatfällningens partiklar innan fällningens reducering tili metallisk form genom reaktion med väte, att pä den slutliga koboltpulverprodukten utfälls ca 0,1- 6 vikt-% av en motsvarande oantändlig oxid.
4. Förfarande enligt patentkravet 3, kännetecknat därav, att som den oantändliga oxiden bildande förening används ett hydroxid av ätminstone en metall, varvid metallen är Mg, Ca, Ba, AI, Be, Ce, Hf, La, Th, Y eller Zr.
5. Förfarande enligt patentkravet 1, kännetecknat därav, att molförhällandet mellan fri ammoniak och kobolt i kobolt (II)ammin-ammoniumsulfatlösningen är ca 2 - 4,5 varvid lösningens ammoniumsulfatkoncentration är ca 250 - 300 g/1 och att lösningen bringas att reagera med koldioxid vid en temperatur av ca 75-100°C, O varvid koldioxidets partiella tryck är ca 3,5 - / kp/cm .
FI915/74A 1973-03-30 1974-03-26 Foerfarande foer framstaellning av finfoerdelat koboltpulver FI66435C (fi)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB1552273A GB1436595A (en) 1973-03-30 1973-03-30 Process for the production of finely divided cobalt powders
GB1552273 1973-03-30

Publications (2)

Publication Number Publication Date
FI66435B FI66435B (fi) 1984-06-29
FI66435C true FI66435C (fi) 1984-10-10

Family

ID=10060624

Family Applications (1)

Application Number Title Priority Date Filing Date
FI915/74A FI66435C (fi) 1973-03-30 1974-03-26 Foerfarande foer framstaellning av finfoerdelat koboltpulver

Country Status (11)

Country Link
US (1) US3994716A (sv)
JP (1) JPS5722963B2 (sv)
AU (1) AU475404B2 (sv)
BE (1) BE813057A (sv)
CA (1) CA1013595A (sv)
DE (1) DE2415442A1 (sv)
FI (1) FI66435C (sv)
FR (1) FR2223119B1 (sv)
GB (1) GB1436595A (sv)
PH (2) PH10513A (sv)
ZA (1) ZA741828B (sv)

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Publication number Priority date Publication date Assignee Title
JPS614576Y2 (sv) * 1978-02-28 1986-02-13
US4229234A (en) * 1978-12-29 1980-10-21 Exxon Research & Engineering Co. Passivated, particulate high Curie temperature magnetic alloys
US5244156A (en) * 1990-11-20 1993-09-14 Gte Products Corporation Method to reduce the dustiness of extrafine cobalt powder
DE19519329C1 (de) * 1995-05-26 1996-11-28 Starck H C Gmbh Co Kg Kobaltmetallagglomerate, Verfahren zu ihrer Herstellung sowie deren Verwendung
DE19540076C1 (de) * 1995-10-27 1997-05-22 Starck H C Gmbh Co Kg Ultrafeines Kobaltmetallpulver, Verfahren zu seiner Herstellung sowie Verwendung des Kobaltmetallpulvers und des Kobaltcarbonates
SE9703204L (sv) 1997-09-05 1999-03-06 Sandvik Ab Verktyg för borrning/fräsning av kretskortsmaterial
JP3746884B2 (ja) * 1997-09-16 2006-02-15 日鉄鉱業株式会社 磁性流体及びその製造方法
WO2000076698A1 (en) * 1999-06-11 2000-12-21 Georgia Tech Research Corporation Metallic articles formed by reduction of nonmetallic articles and method of producing metallic articles
CN103028735B (zh) * 2011-09-30 2014-10-15 深圳市格林美高新技术股份有限公司 一种半微米钴粉的制备方法
JP6489315B2 (ja) * 2015-07-03 2019-03-27 住友金属鉱山株式会社 コバルト粉の製造方法
US10246343B2 (en) * 2016-11-11 2019-04-02 Rocher Manganese, Inc. Processing of cobaltous sulpha/dithionate liquors derived from cobalt resource
US10308523B1 (en) * 2017-11-07 2019-06-04 Rocher Manganese, Inc. Processing of cobaltous sulphate/dithionate liquors derived from cobalt resource
CN110935886A (zh) * 2018-09-21 2020-03-31 荆门市格林美新材料有限公司 一种类c60型钴粉的制备方法
CN109692969A (zh) * 2019-03-04 2019-04-30 江苏萌达新材料科技有限公司 一种低氧超细球形钴粉的制备方法
CN112846209B (zh) * 2019-11-28 2023-06-09 荆门市格林美新材料有限公司 一种棒状钴粉的制备方法
CN113292110B (zh) * 2020-02-24 2023-08-15 荆门市格林美新材料有限公司 一种超细且高度分散的球形碳酸钴的制备方法
CN112355317A (zh) * 2020-10-19 2021-02-12 衢州华友钴新材料有限公司 一种超细球形钴粉的制备方法
CN112846213B (zh) * 2021-01-05 2023-01-06 有研工程技术研究院有限公司 一种低氧含量高分散纳米球形钴粉的制备方法
CN112974833A (zh) * 2021-02-02 2021-06-18 安徽寒锐新材料有限公司 一种钴粉及其制备方法及制备设置
CN112974823A (zh) * 2021-02-02 2021-06-18 安徽寒锐新材料有限公司 超细球形钴粉的制备方法及制备设备
CN113134620A (zh) * 2021-03-24 2021-07-20 荆门市格林美新材料有限公司 一种钴粉的制备方法
CN113878126A (zh) * 2021-09-02 2022-01-04 荆门市格林美新材料有限公司 一种半微米钴粉的规模化生产方法
CN114406277A (zh) * 2021-12-22 2022-04-29 荆门市格林美新材料有限公司 一种小费氏粒度钴粉的制备方法

Family Cites Families (9)

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US2734821A (en) * 1956-02-14 Table ix
US2744003A (en) * 1952-11-01 1956-05-01 Chemical Construction Corp Process of producing cobalt in fine powder form
US3305349A (en) * 1964-03-17 1967-02-21 Little Inc A Method of making composite materials and resulting products
US3399050A (en) * 1964-04-13 1968-08-27 Sherritt Gordon Mines Ltd Production of nickel powder
US3337327A (en) * 1964-11-06 1967-08-22 Cabot Corp Process for producing finely-divided metal products
US3373012A (en) * 1964-11-12 1968-03-12 Cabot Corp Production of metallurgical products
US3393067A (en) * 1964-12-18 1968-07-16 Fansteel Metallurgical Corp Process for producing alloys containing chromium and dispersed refractory metal oxide particles
US3526498A (en) * 1966-12-23 1970-09-01 Sherritt Gordon Mines Ltd Production of nickel-thoria powders
US3775098A (en) * 1971-12-27 1973-11-27 Sherritt Gordon Mines Ltd Cobalt precipitation from aqueous solutions

Also Published As

Publication number Publication date
FI66435B (fi) 1984-06-29
FR2223119B1 (sv) 1981-04-17
DE2415442A1 (de) 1974-10-10
JPS5722963B2 (sv) 1982-05-15
BE813057A (fr) 1974-07-15
JPS5026750A (sv) 1975-03-19
CA1013595A (en) 1977-07-12
AU475404B2 (en) 1976-08-19
US3994716A (en) 1976-11-30
GB1436595A (en) 1976-05-19
PH11716A (en) 1978-05-30
AU6713974A (en) 1975-10-02
ZA741828B (en) 1975-02-26
PH10513A (en) 1977-05-24
FR2223119A1 (sv) 1974-10-25

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