GB630149A - Improvements in and relating to the removal of water from tetrahydrofuran - Google Patents
Improvements in and relating to the removal of water from tetrahydrofuranInfo
- Publication number
- GB630149A GB630149A GB22847A GB22847A GB630149A GB 630149 A GB630149 A GB 630149A GB 22847 A GB22847 A GB 22847A GB 22847 A GB22847 A GB 22847A GB 630149 A GB630149 A GB 630149A
- Authority
- GB
- United Kingdom
- Prior art keywords
- glycerol
- tetrahydrofuran
- water
- mixture
- layers
- 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
- C07D—HETEROCYCLIC COMPOUNDS
- C07D307/00—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom
- C07D307/02—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings
- C07D307/04—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings having no double bonds between ring members or between ring members and non-ring members
- C07D307/06—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings having no double bonds between ring members or between ring members and non-ring members with only hydrogen atoms or radicals containing only hydrogen and carbon atoms, directly attached to ring carbon atoms
- C07D307/08—Preparation of tetrahydrofuran
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
The amount of water in a tetrahydrofuran-water mixture, which may also contain glycerol, is reduced by adding glycerol in such an amount that two layers are formed and separating the two layers. Up to 50 per cent of water and not more than 65 per cent of glycerol may be present in the mixture treated. The proportions used are preferably those of the azeotropic mixture of water and tetrahydrofuran. Fractional distillation of the tetrahydrofuran-rich layer removes the azeotropic mixture leaving the anhydrous tetrahydrofuran. Glycerol may be recovered for re-use from the other layer. The treatment with glycerol may be effected on the countercurrent principle and both the treatment to recover glycerol and the distillation to recover anhydrous tetrahydrofuran may be continuous.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB22847A GB630149A (en) | 1947-01-03 | 1947-01-03 | Improvements in and relating to the removal of water from tetrahydrofuran |
| DE1949P0001531 DE858405C (en) | 1947-01-03 | 1949-01-20 | Process for separating water from mixtures containing tetrahydrofuran and water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB22847A GB630149A (en) | 1947-01-03 | 1947-01-03 | Improvements in and relating to the removal of water from tetrahydrofuran |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB630149A true GB630149A (en) | 1949-10-06 |
Family
ID=9700665
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB22847A Expired GB630149A (en) | 1947-01-03 | 1947-01-03 | Improvements in and relating to the removal of water from tetrahydrofuran |
Country Status (2)
| Country | Link |
|---|---|
| DE (1) | DE858405C (en) |
| GB (1) | GB630149A (en) |
-
1947
- 1947-01-03 GB GB22847A patent/GB630149A/en not_active Expired
-
1949
- 1949-01-20 DE DE1949P0001531 patent/DE858405C/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE858405C (en) | 1952-12-08 |
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