GB566025A - Improvements relating to the dehydration of aliphatic alcohols - Google Patents
Improvements relating to the dehydration of aliphatic alcoholsInfo
- Publication number
- GB566025A GB566025A GB1461/42A GB146142A GB566025A GB 566025 A GB566025 A GB 566025A GB 1461/42 A GB1461/42 A GB 1461/42A GB 146142 A GB146142 A GB 146142A GB 566025 A GB566025 A GB 566025A
- Authority
- GB
- United Kingdom
- Prior art keywords
- line
- entrainer
- alcohol
- tower
- water
- 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
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C29/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring
- C07C29/74—Separation; Purification; Use of additives, e.g. for stabilisation
- C07C29/76—Separation; Purification; Use of additives, e.g. for stabilisation by physical treatment
- C07C29/80—Separation; Purification; Use of additives, e.g. for stabilisation by physical treatment by distillation
- C07C29/82—Separation; Purification; Use of additives, e.g. for stabilisation by physical treatment by distillation by azeotropic distillation
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
566,025. Dehydrating alcohols. STANDARD OIL DEVELOPMENT CO. Feb. 4, 1942, No. 1461. Convention date, Dec. 27, 1940. [Class 32] Aliphatic alcohols containing from. 2-5 carbon atoms in the molecule and boiling up to 150‹ C. are dehydrated by azeotropic distillation with an entrainer comprising an aliphatic hydrocarbon having from eight to twelve carbon atoms in the molecule, particularly polymers of unsaturated hydrocarbons, e.g. iso-octane, di-isobutylene, iso-octene. A mixture of iso-propyl alcohol and water is fed through line 1 to a fractionating tower 10 to which the entrainer is admitted through line 2. The ternary vapour mixture taken off overhead is condensed in condenser 5 and passed to a separator 7 from which the upper phase comprising the entrainer, some alcohol, but little water, is refluxed to the tower 10 through line 8, while the lower aqueous layer is removed through line 9 for separation of its alcohol and entrainer contents. The dehydrated alcohol is recovered through line 11. The water layer is separated by distillation in tower 14, the alcohol and entrainer being recovered overhead and returned through line 15 to tower 10. Alternatively, the aqueous layer may be passed to a vessel 19 to which a small quantity of water is supplied through line 20 and the mixture passed to separator 22 where an upper layer of entrainer separates and is returned through line 23 to column 10.' German Specifications 142,502 and 287,897 are referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US566025XA | 1940-12-27 | 1940-12-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB566025A true GB566025A (en) | 1944-12-11 |
Family
ID=22005502
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1461/42A Expired GB566025A (en) | 1940-12-27 | 1942-02-04 | Improvements relating to the dehydration of aliphatic alcohols |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB566025A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2614971A (en) * | 1948-04-29 | 1952-10-21 | Kellogg M W Co | Dehydration of alcohols |
| WO2012016250A1 (en) | 2010-07-26 | 2012-02-02 | Van Dung Duong | Procces for producing motor fuel from gasoline and ethanol, and motor fuel produced by this procces |
| CN106905114A (en) * | 2015-12-23 | 2017-06-30 | 中国石油天然气股份有限公司 | Method and device for separating isopropanol from aqueous acetone hydrogenation product |
| CN106905115A (en) * | 2015-12-23 | 2017-06-30 | 中国石油天然气股份有限公司 | Method and device for separating isopropanol from aqueous acetone hydrogenation product |
| CN113968773A (en) * | 2021-11-15 | 2022-01-25 | 江苏三贵资源再生有限公司 | Method for separating isopropanol and water by extractive distillation |
-
1942
- 1942-02-04 GB GB1461/42A patent/GB566025A/en not_active Expired
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2614971A (en) * | 1948-04-29 | 1952-10-21 | Kellogg M W Co | Dehydration of alcohols |
| WO2012016250A1 (en) | 2010-07-26 | 2012-02-02 | Van Dung Duong | Procces for producing motor fuel from gasoline and ethanol, and motor fuel produced by this procces |
| CN106905114A (en) * | 2015-12-23 | 2017-06-30 | 中国石油天然气股份有限公司 | Method and device for separating isopropanol from aqueous acetone hydrogenation product |
| CN106905115A (en) * | 2015-12-23 | 2017-06-30 | 中国石油天然气股份有限公司 | Method and device for separating isopropanol from aqueous acetone hydrogenation product |
| CN113968773A (en) * | 2021-11-15 | 2022-01-25 | 江苏三贵资源再生有限公司 | Method for separating isopropanol and water by extractive distillation |
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