ZA866838B - Method of treating ores of rare-earth metals - Google Patents
Method of treating ores of rare-earth metalsInfo
- Publication number
- ZA866838B ZA866838B ZA866838A ZA866838A ZA866838B ZA 866838 B ZA866838 B ZA 866838B ZA 866838 A ZA866838 A ZA 866838A ZA 866838 A ZA866838 A ZA 866838A ZA 866838 B ZA866838 B ZA 866838B
- Authority
- ZA
- South Africa
- Prior art keywords
- rare
- earth metals
- treating ores
- ore
- treating
- 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
- C22B59/00—Obtaining rare earth metals
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F17/00—Compounds of rare earth metals
- C01F17/20—Compounds containing only rare earth metals as the metal element
- C01F17/206—Compounds containing only rare earth metals as the metal element oxide or hydroxide being the only anion
Abstract
1. A method of treating an ore containing lanthanides and yttrium, including a first stage comprising grinding the ore, followed by a second stage comprising reacting the ground ore with a concentrated aqueous alkali metal hydroxide solution at an elevated temperature, characterised in that grinding is carried out in the presence of a concentrated aqueous alkali metal hydroxide solution at a temperature of up to 100 degrees C.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8513382A FR2587036A1 (en) | 1985-09-10 | 1985-09-10 | PROCESS FOR TREATING RARE EARTH ORES |
Publications (1)
Publication Number | Publication Date |
---|---|
ZA866838B true ZA866838B (en) | 1987-05-27 |
Family
ID=9322759
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ZA866838A ZA866838B (en) | 1985-09-10 | 1986-09-09 | Method of treating ores of rare-earth metals |
Country Status (13)
Country | Link |
---|---|
EP (1) | EP0216687B1 (en) |
JP (1) | JPS6260833A (en) |
KR (1) | KR870003219A (en) |
CN (1) | CN1009115B (en) |
AT (1) | ATE45389T1 (en) |
AU (1) | AU593012B2 (en) |
BR (1) | BR8604288A (en) |
CA (1) | CA1284886C (en) |
DE (1) | DE3664929D1 (en) |
FI (1) | FI863610A (en) |
FR (1) | FR2587036A1 (en) |
NO (1) | NO863571L (en) |
ZA (1) | ZA866838B (en) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2584700B1 (en) * | 1985-07-11 | 1990-05-11 | Rhone Poulenc Spec Chim | PROCESS FOR THE PREPARATION OF PRECURSORS OF RARE EARTH OXIDES AND PRODUCTS OBTAINED |
FR2617154B1 (en) * | 1987-06-29 | 1990-11-30 | Rhone Poulenc Chimie | PROCESS FOR OBTAINING CERIC OXIDE AND CERIC OXIDE WITH NEW MORPHOLOGICAL CHARACTERISTICS |
ES2024666B3 (en) * | 1987-06-29 | 1992-03-01 | Rhone-Poulenc Chimie | PROCEDURE FOR OBTAINING A CERIC OXIDE. |
FR2623792B1 (en) * | 1987-11-27 | 1991-02-15 | Rhone Poulenc Chimie | PROCESS FOR SEPARATING THORIUM AND RARE EARTHS FROM A FLUORIDE CONCENTRATE THEREOF |
KR101058567B1 (en) * | 2009-11-25 | 2011-08-23 | 한국지질자원연구원 | Rare Earth Extraction Method in Monazite |
CN106591607B (en) * | 2016-12-10 | 2018-06-22 | 包头稀土研究院 | A kind of liquid caustic soda decomposition method of high-grade mixed rare earth concentrates |
CN109735706A (en) * | 2019-01-31 | 2019-05-10 | 湖南中核金原新材料有限责任公司 | A method of monazite is handled using two sections of thermokalite decomposition techniques |
CN109735705B (en) * | 2019-01-31 | 2021-08-06 | 湖南欧华科技有限公司 | Method for treating rare earth concentrate by utilizing two-stage continuous operation thermokalite decomposition process |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR995112A (en) * | 1949-07-21 | 1951-11-28 | Produits Chim Terres Rares Soc | Treatment of monazitis |
US2811411A (en) * | 1951-10-16 | 1957-10-29 | George D Calkins | Method of processing monazite sand |
JPS586947A (en) * | 1981-07-03 | 1983-01-14 | Inoue Japax Res Inc | Treatment of concentrate of rare earth metal |
-
1985
- 1985-09-10 FR FR8513382A patent/FR2587036A1/en not_active Withdrawn
-
1986
- 1986-09-05 CA CA000517642A patent/CA1284886C/en not_active Expired - Fee Related
- 1986-09-08 AT AT86401960T patent/ATE45389T1/en active
- 1986-09-08 JP JP61209766A patent/JPS6260833A/en active Pending
- 1986-09-08 BR BR8604288A patent/BR8604288A/en unknown
- 1986-09-08 EP EP86401960A patent/EP0216687B1/en not_active Expired
- 1986-09-08 FI FI863610A patent/FI863610A/en not_active Application Discontinuation
- 1986-09-08 NO NO863571A patent/NO863571L/en unknown
- 1986-09-08 DE DE8686401960T patent/DE3664929D1/en not_active Expired
- 1986-09-08 AU AU62438/86A patent/AU593012B2/en not_active Ceased
- 1986-09-09 CN CN86105862A patent/CN1009115B/en not_active Expired
- 1986-09-09 ZA ZA866838A patent/ZA866838B/en unknown
- 1986-09-09 KR KR1019860007536A patent/KR870003219A/en not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
AU593012B2 (en) | 1990-02-01 |
NO863571D0 (en) | 1986-09-08 |
CN86105862A (en) | 1987-03-18 |
BR8604288A (en) | 1987-05-05 |
JPS6260833A (en) | 1987-03-17 |
CA1284886C (en) | 1991-06-18 |
ATE45389T1 (en) | 1989-08-15 |
FR2587036A1 (en) | 1987-03-13 |
DE3664929D1 (en) | 1989-09-14 |
EP0216687A1 (en) | 1987-04-01 |
AU6243886A (en) | 1987-03-12 |
CN1009115B (en) | 1990-08-08 |
KR870003219A (en) | 1987-04-16 |
FI863610A0 (en) | 1986-09-08 |
NO863571L (en) | 1987-03-11 |
FI863610A (en) | 1987-03-11 |
EP0216687B1 (en) | 1989-08-09 |
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