GB872509A - Improvements in or relating to the preparation of rubidium compounds - Google Patents
Improvements in or relating to the preparation of rubidium compoundsInfo
- Publication number
- GB872509A GB872509A GB2787056A GB2787056A GB872509A GB 872509 A GB872509 A GB 872509A GB 2787056 A GB2787056 A GB 2787056A GB 2787056 A GB2787056 A GB 2787056A GB 872509 A GB872509 A GB 872509A
- Authority
- GB
- United Kingdom
- Prior art keywords
- rubidium
- chlorostannate
- treated
- caesium
- precipitate
- 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
- C01D—COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
- C01D17/00—Rubidium, caesium or francium compounds
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Inorganic Chemistry (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
Abstract
Rubidium is recovered from a dilute aqueous solution containing rubidium and caesium, with or without other alkali metal salts, by fractionally precipitating caesium as caesium chlorostannate, by addition of an aqueous solution of stannic chloride containing hydrochloric acid, and thereafter adding further amounts of stannic chloride solution to precipitate the rubidium as chlorostannate. The initial stannic chloride solution is preferably in stoichiometric excess relative to the caesium. The invention is particularly applicable to the treatment of chloride solutions obtained by the extraction of lepidolite after removal of lithium followed by concentration and crystallization of sodium and potassium values as chlorides. According to examples, a filtrate from the lepidolite extraction process above outlined and still containing lithium, sodium, potassium and caesium chlorides as well as rubidium chlorides, was treated with soda ash to precipitate lithium as carbonate, cooled, treated with concentrated hydrochloric acid to precipitate sodium and potassium chlorides and then treated with stannic chloride and concentrated hydrochloric acid until a filtered test portion gave no precipitate with iodobismuthic acid. Caesium chlorostannate was removed and further stannic chloride was added with agitation and the rubidium chlorostannate was recovered. This was treated with barium carbonate at about 90 DEG C. to form alpha-stannic acid, which was filtered off, and a solution of rubidium and barium chlorides from which the barium was precipitated as sulphate with sulphuric acid. The rubidium chloride may be purified by dissolving in water, adding concentrated hydrochloric acid and then treated with stannic chloride to precipitate further caesium chlorostannate as impurity, after which the rubidium chlorostannate was treated as before. Alternatively the crude barium chloride/rubidium chloride solution obtained by barium carbonate decomposition of the rubidium chlorostannate may be treated with concentrated hydrochloric acid to precipitate most of the barium and then treated with stannic chloride to precipitate rubidium as chlorostannate as before. The alpha-stannic acid can be reconverted to stannic chloride by boiling in hydrochloric acid and the solution recycled for precipitation of the chlorostannates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2787056A GB872509A (en) | 1956-09-12 | 1956-09-12 | Improvements in or relating to the preparation of rubidium compounds |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2787056A GB872509A (en) | 1956-09-12 | 1956-09-12 | Improvements in or relating to the preparation of rubidium compounds |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB872509A true GB872509A (en) | 1961-07-12 |
Family
ID=10266626
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2787056A Expired GB872509A (en) | 1956-09-12 | 1956-09-12 | Improvements in or relating to the preparation of rubidium compounds |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB872509A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3510257A (en) * | 1968-12-19 | 1970-05-05 | American Potash & Chem Corp | Process of separating rubidium from alkali metal impurities |
| CN111747429A (en) * | 2020-07-28 | 2020-10-09 | 广西阿尔布莱特投资有限责任公司 | Active rubidium raw material for medicine and preparation method thereof |
| CN111893309A (en) * | 2020-08-11 | 2020-11-06 | 广东省科学院资源综合利用研究所 | Comprehensive recycling method for full recycling of cigarette ash |
| CN112239221A (en) * | 2020-10-19 | 2021-01-19 | 广东省科学院资源综合利用研究所 | Method for extracting rubidium chloride from rubidium-containing high-salinity brine |
-
1956
- 1956-09-12 GB GB2787056A patent/GB872509A/en not_active Expired
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3510257A (en) * | 1968-12-19 | 1970-05-05 | American Potash & Chem Corp | Process of separating rubidium from alkali metal impurities |
| CN111747429A (en) * | 2020-07-28 | 2020-10-09 | 广西阿尔布莱特投资有限责任公司 | Active rubidium raw material for medicine and preparation method thereof |
| CN111893309A (en) * | 2020-08-11 | 2020-11-06 | 广东省科学院资源综合利用研究所 | Comprehensive recycling method for full recycling of cigarette ash |
| CN112239221A (en) * | 2020-10-19 | 2021-01-19 | 广东省科学院资源综合利用研究所 | Method for extracting rubidium chloride from rubidium-containing high-salinity brine |
| CN112239221B (en) * | 2020-10-19 | 2023-02-28 | 广东省科学院资源综合利用研究所 | Method for extracting rubidium chloride from rubidium-containing high-salinity brine |
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