GB395305A - Process of separating phosphoric acid from the mixed rareearth sulphates obtained in decomposing monazite sands with sulphuric acid - Google Patents
Process of separating phosphoric acid from the mixed rareearth sulphates obtained in decomposing monazite sands with sulphuric acidInfo
- Publication number
- GB395305A GB395305A GB8404/33A GB840433A GB395305A GB 395305 A GB395305 A GB 395305A GB 8404/33 A GB8404/33 A GB 8404/33A GB 840433 A GB840433 A GB 840433A GB 395305 A GB395305 A GB 395305A
- Authority
- GB
- United Kingdom
- Prior art keywords
- decomposing
- sulphuric acid
- acid
- sulphates
- separating
- 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
- 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
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B25/00—Phosphorus; Compounds thereof
- C01B25/16—Oxyacids of phosphorus; Salts thereof
- C01B25/18—Phosphoric acid
- C01B25/234—Purification; Stabilisation; Concentration
-
- 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
- C01F17/282—Sulfates
-
- 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
- C22B3/00—Extraction of metal compounds from ores or concentrates by wet processes
- C22B3/20—Treatment or purification of solutions, e.g. obtained by leaching
- C22B3/26—Treatment or purification of solutions, e.g. obtained by leaching by liquid-liquid extraction using organic compounds
- C22B3/262—Treatment or purification of solutions, e.g. obtained by leaching by liquid-liquid extraction using organic compounds using alcohols or phenols
-
- 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
- C22B3/00—Extraction of metal compounds from ores or concentrates by wet processes
- C22B3/20—Treatment or purification of solutions, e.g. obtained by leaching
- C22B3/26—Treatment or purification of solutions, e.g. obtained by leaching by liquid-liquid extraction using organic compounds
- C22B3/306—Ketones or aldehydes
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Manufacturing & Machinery (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Environmental & Geological Engineering (AREA)
- Inorganic Chemistry (AREA)
- Geochemistry & Mineralogy (AREA)
- Paper (AREA)
Abstract
A process of separating phosphoric acid and excess of sulphuric acid from the rare-earth sulphate pulp obtained by decomposing monazite sand with concentrated sulphuric acid comprises introducing the pulp into aliphatic alcohols or ketones, preferably at a low temperature, for example 0 DEG C., separating from the liquid the undissolved sulphates, and washing and drying them. Examples relate to the use of methanol and acetone, these liquids being also employed in the respective washing operations. Drying is effected at 100 DEG C. The alcohol or ketone is recovered from the acid-containing liquid by distillation after neutralization with sodium carbonate or lime. The dried sulphates may be dissolved in water at 0 DEG C., and the rare earths isolated in known manner.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE395305X | 1932-04-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB395305A true GB395305A (en) | 1933-07-13 |
Family
ID=6396832
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB8404/33A Expired GB395305A (en) | 1932-04-25 | 1933-03-20 | Process of separating phosphoric acid from the mixed rareearth sulphates obtained in decomposing monazite sands with sulphuric acid |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB395305A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115818694A (en) * | 2022-12-09 | 2023-03-21 | 包头稀土研究院 | Method for treating monazite |
-
1933
- 1933-03-20 GB GB8404/33A patent/GB395305A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115818694A (en) * | 2022-12-09 | 2023-03-21 | 包头稀土研究院 | Method for treating monazite |
| CN115818694B (en) * | 2022-12-09 | 2024-01-23 | 包头稀土研究院 | Method for treating monazite |
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