GB825305A - Process for recovering rare-earth oxides - Google Patents
Process for recovering rare-earth oxidesInfo
- Publication number
- GB825305A GB825305A GB13612/57A GB1361257A GB825305A GB 825305 A GB825305 A GB 825305A GB 13612/57 A GB13612/57 A GB 13612/57A GB 1361257 A GB1361257 A GB 1361257A GB 825305 A GB825305 A GB 825305A
- Authority
- GB
- United Kingdom
- Prior art keywords
- rare earth
- ore
- baryte
- alkali metal
- concentrate
- 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
Links
Classifications
-
- 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
- C01F17/224—Oxides or hydroxides of lanthanides
- C01F17/235—Cerium oxides or hydroxides
-
- 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
- C01F17/224—Oxides or hydroxides of lanthanides
- C01F17/229—Lanthanum oxides or hydroxides
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Inorganic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
A product containing more than 60% of rare earth metal oxides is recovered from an ore or ore concentrate containing a fluoride, fluorcarbonate, oxyfluoride, borofluoride and/or silicofluoride of rare earth metals and gangue comprising baryte by heating said ore or ore concentrate at 850-1000 DEG C. under oxidizing conditions with an amount of an alkali metal or alkali metal compound, which is converted to oxide under the reaction conditions, at least equivalent to the fluorine of the ore or ore concentrate, and leaching the treated material with water. If necessary, to obtain the required percentage of rare earth metal oxide in the product, the residue after leaching is separated by gravity from the baryte remaining therewith. Alkali metal compounds which may be used include carbonates, bicarbonates, nitrates, peroxides, hydroxides, nitrites and cyanides; sodium carbonate may be used in excess of the stoichiometric amount by 5-100%; rare earth metals referred to are cerium and lanthanum; in the examples a bastnasite baryte concentrate was employed. In the reaction alkali metal fluorides are formed (with some sulphate from the baryte) and the recovery of fluorine as sodium fluoride or by precipitation with a calcium compound, as calcium fluoride, is mentioned. U.S.A. Specification 2,735,747, which describes heating rare earth metal carbonate ores to convert them to oxides, is referred to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB13612/57A GB825305A (en) | 1957-04-29 | 1957-04-29 | Process for recovering rare-earth oxides |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB13612/57A GB825305A (en) | 1957-04-29 | 1957-04-29 | Process for recovering rare-earth oxides |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB825305A true GB825305A (en) | 1959-12-16 |
Family
ID=10026206
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB13612/57A Expired GB825305A (en) | 1957-04-29 | 1957-04-29 | Process for recovering rare-earth oxides |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB825305A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113979464A (en) * | 2021-10-27 | 2022-01-28 | 福建省长汀金龙稀土有限公司 | Method for preparing rare earth oxide powder by oxidizing and roasting rare earth mixture |
| CN115092952A (en) * | 2022-07-05 | 2022-09-23 | 冕宁县新盛源新材料科技有限公司 | Production process of rare earth fluoride |
| CN117867271A (en) * | 2023-02-21 | 2024-04-12 | 吉水金诚新材料加工有限公司 | Treatment device for rare earth molten salt waste residues |
-
1957
- 1957-04-29 GB GB13612/57A patent/GB825305A/en not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113979464A (en) * | 2021-10-27 | 2022-01-28 | 福建省长汀金龙稀土有限公司 | Method for preparing rare earth oxide powder by oxidizing and roasting rare earth mixture |
| CN115092952A (en) * | 2022-07-05 | 2022-09-23 | 冕宁县新盛源新材料科技有限公司 | Production process of rare earth fluoride |
| CN115092952B (en) * | 2022-07-05 | 2023-10-03 | 冕宁县新盛源新材料科技有限公司 | Production process of rare earth fluoride |
| CN117867271A (en) * | 2023-02-21 | 2024-04-12 | 吉水金诚新材料加工有限公司 | Treatment device for rare earth molten salt waste residues |
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