GB373511A - A process for the dehydration of water-containing alkali hydroxides - Google Patents
A process for the dehydration of water-containing alkali hydroxidesInfo
- Publication number
- GB373511A GB373511A GB2593231A GB2593231A GB373511A GB 373511 A GB373511 A GB 373511A GB 2593231 A GB2593231 A GB 2593231A GB 2593231 A GB2593231 A GB 2593231A GB 373511 A GB373511 A GB 373511A
- Authority
- GB
- United Kingdom
- Prior art keywords
- dehydration
- alkali
- caustic
- added
- oxide
- 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
- C01D1/00—Oxides or hydroxides of sodium, potassium or alkali metals in general
- C01D1/04—Hydroxides
- C01D1/42—Concentration; Dehydration
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
Water-containing alkali hydroxides are dehydrated, if desired after partial dehydration by known methods, by treating them in a solid or molten condition or in a non-aqueous solution with quantities of alkali oxide equivalent to the degree of dehydration required. If complete dehydration is required an excess may be added. It is also advantageous to add an excess of alkali oxide when the caustic alkali is to be employed in water producing reactions; for example condensation reactions which take place under the influence of caustic alkalis. According to examples, (1) sodium oxide is added to caustic soda in a solid or molten state; (2) solid caustic soda and sodium oxide are ground together in a closed ball mill; (3) sodium oxide is stirred into molten caustic soda at 350 DEG C; (4) sodium oxide is added to alcoholic caustic soda at atmospheric or slightly raised temperature.ALSO:Water-containing alkali hydroxides are dehydrated, if desired after partial dehydration by known methods, by treating them in a solid or molten condition or in a non-aqueous solution with quantities of alkali oxide equivalent to the degree of dehydration required. If complete dehydration is required an excess may be added. It is also advantageous to add an excess of alkali oxide when the caustic alkali is to be employed in water producing reactions; for example condensation reactions which take place under the influence of caustic alkalis. According to one example sodium oxide is added to an alcoholic solution of caustic soda.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2593231A GB373511A (en) | 1931-09-16 | 1931-09-16 | A process for the dehydration of water-containing alkali hydroxides |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2593231A GB373511A (en) | 1931-09-16 | 1931-09-16 | A process for the dehydration of water-containing alkali hydroxides |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB373511A true GB373511A (en) | 1932-05-26 |
Family
ID=10235654
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2593231A Expired GB373511A (en) | 1931-09-16 | 1931-09-16 | A process for the dehydration of water-containing alkali hydroxides |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB373511A (en) |
-
1931
- 1931-09-16 GB GB2593231A patent/GB373511A/en not_active Expired
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