GB592919A - Distillation process for the removal of water from organic compounds - Google Patents
Distillation process for the removal of water from organic compoundsInfo
- Publication number
- GB592919A GB592919A GB1471945A GB1471945A GB592919A GB 592919 A GB592919 A GB 592919A GB 1471945 A GB1471945 A GB 1471945A GB 1471945 A GB1471945 A GB 1471945A GB 592919 A GB592919 A GB 592919A
- Authority
- GB
- United Kingdom
- Prior art keywords
- tetrahydropyran
- water
- aqueous layer
- distillation
- propanol
- 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
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title abstract 11
- 238000004821 distillation Methods 0.000 title abstract 5
- 150000002894 organic compounds Chemical class 0.000 title abstract 3
- DHXVGJBLRPWPCS-UHFFFAOYSA-N THP Chemical compound C1CCOCC1 DHXVGJBLRPWPCS-UHFFFAOYSA-N 0.000 abstract 14
- BDAGIHXWWSANSR-UHFFFAOYSA-N formic acid Chemical compound OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 abstract 6
- 239000000203 mixture Substances 0.000 abstract 4
- BDERNNFJNOPAEC-UHFFFAOYSA-N propanol Chemical compound CCCO BDERNNFJNOPAEC-UHFFFAOYSA-N 0.000 abstract 4
- FBPFZTCFMRRESA-FSIIMWSLSA-N D-Glucitol Natural products OC[C@H](O)[C@H](O)[C@@H](O)[C@H](O)CO FBPFZTCFMRRESA-FSIIMWSLSA-N 0.000 abstract 2
- WQZGKKKJIJFFOK-GASJEMHNSA-N D-Glucose Natural products OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 abstract 2
- FBPFZTCFMRRESA-JGWLITMVSA-N D-glucitol Chemical compound OC[C@H](O)[C@@H](O)[C@H](O)[C@H](O)CO FBPFZTCFMRRESA-JGWLITMVSA-N 0.000 abstract 2
- 239000002253 acid Substances 0.000 abstract 2
- 150000007513 acids Chemical class 0.000 abstract 2
- 150000001298 alcohols Chemical class 0.000 abstract 2
- 150000002148 esters Chemical class 0.000 abstract 2
- 235000019253 formic acid Nutrition 0.000 abstract 2
- 239000008103 glucose Substances 0.000 abstract 2
- 238000010992 reflux Methods 0.000 abstract 2
- 239000000600 sorbitol Substances 0.000 abstract 2
- -1 e.g. Chemical class 0.000 abstract 1
Classifications
-
- 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
- B01D3/36—Azeotropic distillation
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Organic compounds, e.g., alcohols, acids, esters are dehydrated by distillation with tetrahydropyran which forms an azeotropic mixture with the water which on distilling off and condensing stratifies into an aqueous layer containing a small percentage of tetrahydropyran and a tetrahydropyran layer containing a small percentage of water. In examples (1) 300 gs. n-propanol/water binary azeotrope are mixed with 100 gs. tetrahydropyran and distilled in a column connected to a total condenser and decanter from which the lower aqueous layer is withdrawn continuously. After removal of the aqueous layer the distillation was continued with 3 : 1 reflux until the still head temperature reached 98 DEG C., n-propanol containing 0.08 per cent. water being recovered (2) as applied to formic acid with which the tetrahydropyran also forms an azeotrope, the tetrahydropyran is added in only sufficient quantity to form the required water/tetrahydropyran azeotropic mixture (4) sorbitol and (5) glucose are dehydrated similarly.ALSO:Organic compounds, e.g. alcohols, acids, esters are dehydrated by distillation with tetrahydropyran which forms an azeotropic mixture with the water which on distilling off and condensing stratifies into an aqueous layer containing a small percentage of tetrahydropyran and a tetrahydropyran layer containing a small percentage of water. In examples: (1) 300 gs. n-propanol/water binary azeotrope are mixed with 100 gs. tetrahydropyran and distilled in a column connected to a total condenser and decanter from which the lower aqueous layer is withdrawn continually. After removal of the aqueous layer, the distillation was continued with 3 : 1 reflux until the still head temperature reached 98 DEG C., n-propanol containing 0.08 per cent water being recovered; (2) as applied to formic acid with which the tetrahydropyran also forms an azeotrope, the tetrahydropyran is added in only sufficient quantity to form the required water/tetrahydropyran azeotropic mixture; (4) sorbitol and (5) glucose are dehydrated similarly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR931889D FR931889A (en) | 1945-06-11 | 1946-06-11 | Water removal of organic compounds |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB592919A true GB592919A (en) | 1947-10-02 |
Family
ID=1730967
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1471945A Expired GB592919A (en) | 1945-06-11 | 1945-06-11 | Distillation process for the removal of water from organic compounds |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB592919A (en) |
-
1945
- 1945-06-11 GB GB1471945A patent/GB592919A/en not_active Expired
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