GB409791A - Improvements in and relating to processes for dehydrating alcohols by azeotropic distillation and apparatus therefor - Google Patents
Improvements in and relating to processes for dehydrating alcohols by azeotropic distillation and apparatus thereforInfo
- Publication number
- GB409791A GB409791A GB32539/32A GB3253932A GB409791A GB 409791 A GB409791 A GB 409791A GB 32539/32 A GB32539/32 A GB 32539/32A GB 3253932 A GB3253932 A GB 3253932A GB 409791 A GB409791 A GB 409791A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pipe
- alcohol
- column
- content
- returned
- 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
- 238000000034 method Methods 0.000 title abstract 2
- 150000001298 alcohols Chemical class 0.000 title 1
- 238000010533 azeotropic distillation Methods 0.000 title 1
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 abstract 10
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 abstract 8
- 239000003795 chemical substances by application Substances 0.000 abstract 6
- 238000000605 extraction Methods 0.000 abstract 5
- 238000004821 distillation Methods 0.000 abstract 4
- 239000000203 mixture Substances 0.000 abstract 3
- 238000010992 reflux Methods 0.000 abstract 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 3
- XSTXAVWGXDQKEL-UHFFFAOYSA-N Trichloroethylene Chemical group ClC=C(Cl)Cl XSTXAVWGXDQKEL-UHFFFAOYSA-N 0.000 abstract 1
- 235000006085 Vigna mungo var mungo Nutrition 0.000 abstract 1
- 240000005616 Vigna mungo var. mungo Species 0.000 abstract 1
- 238000009825 accumulation Methods 0.000 abstract 1
- 230000001476 alcoholic effect Effects 0.000 abstract 1
- 230000018044 dehydration Effects 0.000 abstract 1
- 238000006297 dehydration reaction Methods 0.000 abstract 1
- 230000004048 modification Effects 0.000 abstract 1
- 238000012986 modification Methods 0.000 abstract 1
- 238000000926 separation method Methods 0.000 abstract 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
- E06B3/90—Revolving doors; Cages or housings therefor
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05DÂ AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
- E05Y2900/00—Application of doors, windows, wings or fittings thereof
- E05Y2900/10—Application of doors, windows, wings or fittings thereof for buildings or parts thereof
- E05Y2900/13—Type of wing
- E05Y2900/132—Doors
Landscapes
- Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
In dehydrating alcohol by the azeotropic method in which the ternary condensate obtained is separated into two layers one having a high content of extraction agent and the other a high content of water and low <PICT:0409791/III/1> content of extraction agent the latter is directly concentrated in a distillation column without previous separation of the extraction agent and the concentrated alcohol which contains some extraction agent in addition to water is returned directly to the dehydrating column. Accumulation of the small content of methyl alcohol contained in the crude alcohol is prevented by withdrawing it from the top of the distillation column in the form of a binary mixture with the extraction agent. Crude spirit is passed through a preheater J<1> and pipe I into a dehydrating column A from which the absolute alcohol is withdrawn through the preheater J<1> and cooler J<2> to storage. The alcohol is treated in the column with the azeotropic agent, e.g. trichlorethylene and the ternary vapour mixture passes off through a pipe 3 to a condenser D and cooler E and is then separated into two layers in a separator H the upper layer being of high water and alcohol content while the lower layer is of high entrainer content and is mainly returned to the column A through a pipe 7. The upper aqueous layer which also contains the methyl alcohol is fed through a pipe 6 with a small proportion of the lower layer through a pipe 7<a> to a distillation column C. This latter is of greater length than usual, the number of concentrating plates being increased from 36 to 55 while refluxes are provided through pipes 8<a> 11<a> at the 36th and 55th plates respectively. In this column the binary entrainer-methyl alcohol mixture passes off at the top and is condensed in coolers L, L<1>, some of the condensate being returned as reflux through the pipe 8<a> while the remainder is passed through a pipe 10 to a further distillation column where the entrainer is distilled off and anhydrous methyl alcohol obtained. The concentrated alcohol passes off through a pipe 11 to condensers M, M<1>, from which reflux is returned through the pipe 11<a> while the remainder is returned through a pipe 13 to the dehydration column A. A modification is described adapted for the direct treatment of mashes, worts and other dilute alcoholic liquors.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE409791X | 1909-11-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB409791A true GB409791A (en) | 1934-05-10 |
Family
ID=6422464
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB32539/32A Expired GB409791A (en) | 1932-03-15 | 1932-11-17 | Improvements in and relating to processes for dehydrating alcohols by azeotropic distillation and apparatus therefor |
Country Status (2)
| Country | Link |
|---|---|
| FR (1) | FR409791A (en) |
| GB (1) | GB409791A (en) |
-
1909
- 1909-11-30 FR FR409791D patent/FR409791A/en not_active Expired
-
1932
- 1932-11-17 GB GB32539/32A patent/GB409791A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR409791A (en) | 1910-04-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4654123A (en) | Dehydration of ethanol by extractive distillation | |
| US4631115A (en) | Dehydration of ethanol by extractive distillation | |
| GB515025A (en) | Improvements in or relating to dehydration by azeotropic distillation | |
| US4362601A (en) | Method for distilling ethyl alcohol by adding salt or salts | |
| US2828249A (en) | Process and apparatus for purifying impure alcoholic liquid | |
| GB409791A (en) | Improvements in and relating to processes for dehydrating alcohols by azeotropic distillation and apparatus therefor | |
| US2171549A (en) | Process for azeotropic distillation of aliphatic acids | |
| US2562846A (en) | Dehydration of acrolein by azeotropic distillation | |
| JPS6337622B2 (en) | ||
| US2049441A (en) | Process of operation for azeotropic distillation | |
| US2176500A (en) | Process of concentrating aqueous aliphatic acid solutions by means of seven carbon atom aliphatic esters and five carbon atom aliphatic alcohol entrainers | |
| US2096734A (en) | Process for concentrating and purifying acetic acid from pyroligneous products | |
| US1935529A (en) | Process fob simultaneously and con | |
| GB409053A (en) | Improvements in the manufacture of absolute alcohol | |
| GB455947A (en) | Improvements in or relating to the preparation of purified alcohol from worts | |
| GB823339A (en) | Improvements in or relating to the distillation of ethanol | |
| GB407656A (en) | Process for the working up of aqueous solutions of organic acids in particular of acetic acid | |
| GB387589A (en) | Improvements relating to the rectification of alcohol | |
| US1939237A (en) | Process of dehydrating aqueous solutions containing propionic acid | |
| GB417755A (en) | Improvements in and relating to the production of absolute alcohol | |
| GB598346A (en) | Improved process and apparatus for the rectification of impure alcoholic liquids | |
| GB838142A (en) | Improvements in and relating to the production of acetyl acetone | |
| FR2060952A5 (en) | Alcohol recovery from aqueous solutions by - distillation and rectifying | |
| GB383148A (en) | Improved process of dehydrating aqueous acetic acid | |
| GB529432A (en) | A process for the purification of organic compounds |