GB595128A - Process for the dehydration of inorganic salts and bases - Google Patents
Process for the dehydration of inorganic salts and basesInfo
- Publication number
- GB595128A GB595128A GB12928/44A GB1292844A GB595128A GB 595128 A GB595128 A GB 595128A GB 12928/44 A GB12928/44 A GB 12928/44A GB 1292844 A GB1292844 A GB 1292844A GB 595128 A GB595128 A GB 595128A
- Authority
- GB
- United Kingdom
- Prior art keywords
- acetal
- water
- barium chloride
- potassium hydroxide
- barium
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B5/00—Drying solid materials or objects by processes not involving the application of heat
- F26B5/005—Drying solid materials or objects by processes not involving the application of heat by dipping them into or mixing them with a chemical liquid, e.g. organic; chemical, e.g. organic, dewatering aids
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
- B01D3/34—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping with one or more auxiliary substances
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- General Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Molecular Biology (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Catalysts (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Anhydrous substances are produced from inorganic bases or from inorganic salts which do not give an acid solution when dissolved in water by heating the aqueous solutions of such substances, or the solid substances containing moisture or water of crystallisation, with an excess of an acetal, a ketal or a di-ether of ethylene glycol or homologue thereof. The organic substance chosen should be a liquid at 100 DEG C. A mixture of these "acetal-like bodies" may also be used. The process may be applied to the alkali, copper, ferrous and magnesium sulphates and also to barium, lithium, calcium and cupric chlorides. Crystalline barium chloride (100 parts) is pulverised and mixed with 500 parts of acetaldehyde-dibutyl-acetal in a vessel provided with an outlet leading to a condenser and having a stirrer mounted therein. The mass is heated, while being stirred, to the boiling point of the acetal, and a mixture of water and a small amount of acetal is distilled off. When the dehydration is complete, the excess acetal is separated from the barium chloride by filtration or by centrifuging. The last traces of acetal may be removed from the barium chloride by tumbling it in a box through which a current of hot air is passed. The product is very fine and can be used as a catalyst for splitting hydrogen chloride. Instead of the crystals, a saturated solution of barium chloride can be similarly treated. When potassium hydroxide is treated by this process, it is recovered as a complex with the acetal-like body used. Specification 582,191, [Group IV], is referred to.ALSO:A complex of potassium hydroxide with an acetal, or a ketal, or a di-ether of ethylene glycol or homologue thereof is prepared by heating moist solid potassium hydroxide or a concentrated aqueous solution thereof with the "acetal-like body" until all the water is driven off. The products may be used as catalysts in the condensation of calcium carbide or of acetylenic hydrocarbons with aldehydes or ketones. Specification 582,191 is referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US595128XA | 1943-12-17 | 1943-12-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB595128A true GB595128A (en) | 1947-11-27 |
Family
ID=22023445
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB12928/44A Expired GB595128A (en) | 1943-12-17 | 1944-07-06 | Process for the dehydration of inorganic salts and bases |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB595128A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5462584A (en) * | 1994-03-21 | 1995-10-31 | Gas Research Institute | Process for dehydrating natural gas |
| US5725636A (en) * | 1994-03-21 | 1998-03-10 | Gas Research Institute | Gas dehydration process |
| US5725637A (en) * | 1994-03-21 | 1998-03-10 | Gas Research Institute | Gas dehydration process |
| US5922109A (en) * | 1997-03-11 | 1999-07-13 | The Dow Chemical Company | Gas drying process using glycol solution solubility suppressants |
-
1944
- 1944-07-06 GB GB12928/44A patent/GB595128A/en not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5462584A (en) * | 1994-03-21 | 1995-10-31 | Gas Research Institute | Process for dehydrating natural gas |
| US5725636A (en) * | 1994-03-21 | 1998-03-10 | Gas Research Institute | Gas dehydration process |
| US5725637A (en) * | 1994-03-21 | 1998-03-10 | Gas Research Institute | Gas dehydration process |
| US5922109A (en) * | 1997-03-11 | 1999-07-13 | The Dow Chemical Company | Gas drying process using glycol solution solubility suppressants |
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