ATE36560T1 - METALLOTHERMAL REDUCTION OF RARE EARTH OXIDES USING CALCIUM. - Google Patents
METALLOTHERMAL REDUCTION OF RARE EARTH OXIDES USING CALCIUM.Info
- Publication number
- ATE36560T1 ATE36560T1 AT85304046T AT85304046T ATE36560T1 AT E36560 T1 ATE36560 T1 AT E36560T1 AT 85304046 T AT85304046 T AT 85304046T AT 85304046 T AT85304046 T AT 85304046T AT E36560 T1 ATE36560 T1 AT E36560T1
- Authority
- AT
- Austria
- Prior art keywords
- rare earth
- calcium
- earth oxides
- oxides
- metallothermal reduction
- Prior art date
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)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Electrolytic Production Of Metals (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
- Hard Magnetic Materials (AREA)
- Manufacturing Cores, Coils, And Magnets (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).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US62773684A | 1984-07-03 | 1984-07-03 | |
EP85304046A EP0170372B1 (en) | 1984-07-03 | 1985-06-07 | Metallothermic reduction of rare earth oxides with calcium metal |
Publications (1)
Publication Number | Publication Date |
---|---|
ATE36560T1 true ATE36560T1 (en) | 1988-09-15 |
Family
ID=24515917
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT85304046T ATE36560T1 (en) | 1984-07-03 | 1985-06-07 | METALLOTHERMAL REDUCTION OF RARE EARTH OXIDES USING CALCIUM. |
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)
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 |
CA2787219A1 (en) * | 2010-01-12 | 2011-07-21 | Sylvan Source, Inc. | 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 |
Family Cites Families (9)
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. |
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 |
SU1027232A1 (en) * | 1982-01-15 | 1983-07-07 | Научно-исследовательский институт металлургии | Method for producing master alloy |
EP0108474B2 (en) * | 1982-09-03 | 1995-06-21 | General Motors Corporation | 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 |
US4578242A (en) * | 1984-07-03 | 1986-03-25 | General Motors Corporation | Metallothermic reduction of rare earth oxides |
-
1985
- 1985-06-07 DE DE8585304046T patent/DE3564451D1/en not_active Expired
- 1985-06-07 EP EP85304046A patent/EP0170372B1/en not_active Expired
- 1985-06-07 AT AT85304046T patent/ATE36560T1/en not_active IP Right Cessation
- 1985-06-13 ZA ZA854474A patent/ZA854474B/en unknown
- 1985-06-28 BR BR8503140A patent/BR8503140A/en not_active IP Right Cessation
- 1985-06-28 MX MX026616A patent/MX173880B/en unknown
- 1985-07-01 KR KR1019850004710A patent/KR910001581B1/en not_active IP Right Cessation
- 1985-07-02 AU AU44488/85A patent/AU575965B2/en not_active Ceased
- 1985-07-02 ES ES544799A patent/ES8702508A1/en not_active Expired
- 1985-07-03 JP JP14645085A patent/JPS6130639A/en active Granted
Also Published As
Publication number | Publication date |
---|---|
ZA854474B (en) | 1986-03-26 |
KR910001581B1 (en) | 1991-03-16 |
EP0170372A1 (en) | 1986-02-05 |
DE3564451D1 (en) | 1988-09-22 |
AU4448885A (en) | 1986-01-09 |
JPS6130639A (en) | 1986-02-12 |
EP0170372B1 (en) | 1988-08-17 |
JPS6137341B2 (en) | 1986-08-23 |
ES544799A0 (en) | 1987-01-01 |
MX173880B (en) | 1994-04-07 |
ES8702508A1 (en) | 1987-01-01 |
KR860001203A (en) | 1986-02-24 |
AU575965B2 (en) | 1988-08-11 |
BR8503140A (en) | 1986-03-18 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE3565288D1 (en) | Metallothermic reduction of rare earth oxides | |
ATE36560T1 (en) | METALLOTHERMAL REDUCTION OF RARE EARTH OXIDES USING CALCIUM. | |
AU584494B2 (en) | Metallothermic reduction of rare earth chlorides | |
ES8105037A1 (en) | Silico-thermal process for obtaining, in ladle, alloys based on manganese and silicium. | |
ES2002337A6 (en) | Refining precious metals. | |
ZA866838B (en) | Method of treating ores of rare-earth metals | |
IT1109308B (en) | USE OF ARGON FOR THE PRODUCTION OF LOW CARBON AND NITROGEN STEELS IN THE BASIC OXYGEN PROCESS | |
BR8500901A (en) | PROCESS TO PRODUCE STEEL IN A POT WITH OXYGEN BLOWING BY THE TOP | |
YU102489A (en) | Process for removing bismut from lead | |
DE3480413D1 (en) | Production of alloy steels using chemically prepared v2o3 as a vanadium additive | |
AU556833B2 (en) | Saturation of cyanide leach solution with oxygen prior to leaching metals from ground ore | |
Sharma | Metallothermic reduction of rare earth chlorides | |
Szabo et al. | Development of Intensification by Means of Oxygen in the Steelworks at Dunai Vasmu | |
Tochowicz et al. | The Diminishing of Phosphorus Content in Steel Under Reducing Conditions of a Plasma Reactor | |
Borisov et al. | The Influence of Sludge and Lime on the Sintering Process | |
Hernaez et al. | The Zone Melting Method as Applied to Metal Purification | |
Sziklavari et al. | Production of Steel Semiproducts by the Continuous Reduction of a Melt Rich in Iron Oxide | |
ES2008814A6 (en) | Process for oxidizing treatment of steel | |
JPS5311803A (en) | Reaction ac celerating method with slag by dispersing molten metal | |
JPS53101770A (en) | Nonferrous metal fractionator | |
SU1688595A1 (en) | Method of refining aluminium and its alloys | |
UA8612A1 (en) | Method for continuous magnesium refining | |
SU671403A1 (en) | METHOD OF PROCESSING METAL FRACTION OF BATTERY SCRAP | |
PL263196A1 (en) | The method of steel refining,corrosion-proof,in the process of the vacuous decarbonizing by means of oxygen |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
UEP | Publication of translation of european patent specification | ||
REN | Ceased due to non-payment of the annual fee |