AU575965B2 - Reduction of re oxide to re metal or alloy for magnets - Google Patents

Reduction of re oxide to re metal or alloy for magnets

Info

Publication number
AU575965B2
AU575965B2 AU44488/85A AU4448885A AU575965B2 AU 575965 B2 AU575965 B2 AU 575965B2 AU 44488/85 A AU44488/85 A AU 44488/85A AU 4448885 A AU4448885 A AU 4448885A AU 575965 B2 AU575965 B2 AU 575965B2
Authority
AU
Australia
Prior art keywords
rare earth
metal
magnets
alloy
oxide
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
AU44488/85A
Other versions
AU4448885A (en
Inventor
Ram Autar Sharma
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.)
Motors Liquidation Co
Original Assignee
Motors Liquidation Co
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 Motors Liquidation Co filed Critical Motors Liquidation Co
Publication of AU4448885A publication Critical patent/AU4448885A/en
Application granted granted Critical
Publication of AU575965B2 publication Critical patent/AU575965B2/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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
    • C22B5/00—General methods of reducing to metals
    • 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
    • C22B59/00—Obtaining rare earth metals
    • 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
    • C22B5/00—General methods of reducing to metals
    • C22B5/02—Dry methods smelting of sulfides or formation of mattes
    • C22B5/04—Dry methods smelting of sulfides or formation of mattes by aluminium, other metals or silicon

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Metallurgy (AREA)
  • Environmental & Geological Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Electrolytic Production Of Metals (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
  • Manufacturing Cores, Coils, And Magnets (AREA)
  • Hard Magnetic Materials (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)

Abstract

Rare earth oxides can be reduced to rare earth metals by, a novel, high yield, metallothermic process. The oxides are dispersed in a suitable, molten, calcium chloride-based bath (44) along with calcium metal. The bath (44) is agitated and calcium metal reduces the rare earth oxides to rare earth metals. The metals collect in a discrete layer (43) in the reaction vessel (22).
AU44488/85A 1984-07-03 1985-07-02 Reduction of re oxide to re metal or alloy for magnets Ceased AU575965B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US62773684A 1984-07-03 1984-07-03
US627736 1984-07-03

Publications (2)

Publication Number Publication Date
AU4448885A AU4448885A (en) 1986-01-09
AU575965B2 true AU575965B2 (en) 1988-08-11

Family

ID=24515917

Family Applications (1)

Application Number Title Priority Date Filing Date
AU44488/85A Ceased AU575965B2 (en) 1984-07-03 1985-07-02 Reduction of re oxide to re metal or alloy for magnets

Country Status (10)

Country Link
EP (1) EP0170372B1 (en)
JP (1) JPS6130639A (en)
KR (1) KR910001581B1 (en)
AT (1) ATE36560T1 (en)
AU (1) AU575965B2 (en)
BR (1) BR8503140A (en)
DE (1) DE3564451D1 (en)
ES (1) ES8702508A1 (en)
MX (1) MX173880B (en)
ZA (1) ZA854474B (en)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4578242A (en) * 1984-07-03 1986-03-25 General Motors Corporation Metallothermic reduction of rare earth oxides
US4680055A (en) * 1986-03-18 1987-07-14 General Motors Corporation Metallothermic reduction of rare earth chlorides
US4837109A (en) * 1986-07-21 1989-06-06 Hitachi Metals, Ltd. Method of producing neodymium-iron-boron permanent magnet
AT389899B (en) * 1986-08-19 1990-02-12 Treibacher Chemische Werke Ag METHOD FOR THE PRODUCTION OF SE METALS AND ALLOYS CONTAINING SE
JPH01138119A (en) * 1987-11-24 1989-05-31 Mitsubishi Metal Corp Recovery of samarium and europium from electrolytic slag of rare-earth element
DE3817553A1 (en) * 1988-05-24 1989-11-30 Leybold Ag METHOD FOR PRODUCING TITANIUM AND ZIRCONIUM
US4917724A (en) * 1988-10-11 1990-04-17 General Motors Corporation Method of decalcifying rare earth metals formed by the reduction-diffusion process
KR100373109B1 (en) * 1999-09-30 2003-02-25 해 남 현 Extraction method of soil exchangeable K with salt solution and analytical method of the K in the solution
JP2004052003A (en) * 2002-07-16 2004-02-19 Cabot Supermetal Kk Method and apparatus for producing niobium powder or tantalum powder
RU2405045C2 (en) * 2008-05-12 2010-11-27 Анатолий Евгеньевич Волков Method of autoclave production of chemically active materials and device to this end
CN102844104A (en) * 2010-01-12 2012-12-26 西尔万资源公司 Heat transfer interface
CN103436718B (en) * 2013-08-16 2015-06-17 宁夏东方钽业股份有限公司 High-purity lanthanum metal preparation method
EP3802893A4 (en) 2018-05-30 2022-03-02 Hela Novel Metals LLC Methods for the production of fine metal powders from metal compounds
KR102153737B1 (en) * 2019-12-12 2020-09-09 한국지질자원연구원 Method of recovery rare earth elements from a ferrite-rare earth-based permanent magnet using selective chlorination
CN111139366B (en) * 2020-01-17 2024-05-31 鹰潭市宇钠科技中心(有限合伙) Method and equipment for preparing and purifying nuclear pure-grade cooling material in sodium-cooled fast reactor

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB190923215A (en) * 1909-10-11 1910-09-29 Hans Kuzel Process for the Production of Zirconium and other Rare Metals.
SU1027232A1 (en) * 1982-01-15 1983-07-07 Научно-исследовательский институт металлургии Method for producing master alloy
AU4448785A (en) * 1984-07-03 1986-01-09 General Motors Corporation Reduction of re oxide to re metal or alloy for magnets

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2950962A (en) * 1957-03-28 1960-08-30 Carlson Oscar Norman Reduction of fluoride to metal
GB1040468A (en) * 1964-10-26 1966-08-24 Dow Chemical Co Preparation of rare earth metal, yttrium, or scandium
GB1579978A (en) * 1977-07-05 1980-11-26 Johnson Matthey Co Ltd Production of yttrium
DE3379131D1 (en) * 1982-09-03 1989-03-09 Gen Motors Corp Re-tm-b alloys, method for their production and permanent magnets containing such alloys
JPS59177346A (en) * 1983-03-25 1984-10-08 Sumitomo Special Metals Co Ltd Alloy of rare earth metal for magnet material
JPS6077943A (en) * 1983-10-03 1985-05-02 Sumitomo Special Metals Co Ltd Manufacture of raw material alloy for rare earth magnet

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB190923215A (en) * 1909-10-11 1910-09-29 Hans Kuzel Process for the Production of Zirconium and other Rare Metals.
SU1027232A1 (en) * 1982-01-15 1983-07-07 Научно-исследовательский институт металлургии Method for producing master alloy
AU4448785A (en) * 1984-07-03 1986-01-09 General Motors Corporation Reduction of re oxide to re metal or alloy for magnets

Also Published As

Publication number Publication date
KR860001203A (en) 1986-02-24
KR910001581B1 (en) 1991-03-16
MX173880B (en) 1994-04-07
ZA854474B (en) 1986-03-26
ES8702508A1 (en) 1987-01-01
EP0170372B1 (en) 1988-08-17
DE3564451D1 (en) 1988-09-22
ES544799A0 (en) 1987-01-01
EP0170372A1 (en) 1986-02-05
ATE36560T1 (en) 1988-09-15
JPS6137341B2 (en) 1986-08-23
BR8503140A (en) 1986-03-18
JPS6130639A (en) 1986-02-12
AU4448885A (en) 1986-01-09

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Legal Events

Date Code Title Description
MK14 Patent ceased section 143(a) (annual fees not paid) or expired