SU72148A1 - Method of producing acetic acid, acetic anhydride and acetic acid esters - Google Patents
Method of producing acetic acid, acetic anhydride and acetic acid estersInfo
- Publication number
- SU72148A1 SU72148A1 SU47092A SU47092A SU72148A1 SU 72148 A1 SU72148 A1 SU 72148A1 SU 47092 A SU47092 A SU 47092A SU 47092 A SU47092 A SU 47092A SU 72148 A1 SU72148 A1 SU 72148A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- acetic acid
- acetic
- producing
- anhydride
- acid esters
- Prior art date
Links
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
Description
При существующих методах получени уксусного ангидрида в реакторе накопл етс вода, удал ема периодически. В результате гидролиза выход уксусного ангидрида снижаетс .With existing methods for producing acetic anhydride, water accumulates in the reactor and is removed periodically. As a result of hydrolysis, the yield of acetic anhydride is reduced.
Описываемый непрерывный способ получени уксусной кислоты, уксусного ангидрида и уксуснокислых зфиров каталитическим окислением ацетальдегида сводитс к следующему . В колонну, заполненную кольцами рашига, заливают растворитель (бензол этилацетат), который подогревают до температуры кипени азеотропной смеси растворител с водой. Затем в нижнюю часть колонны подают ацетальдегид, катализатор, растворитель и кислород . Из верхней части колонны непрерывно удал ютс пары воды и растворител азеотропно кип щей смеси, которые конденсируютс и раздел ютс . Образовавшиес уксусна кислота и уксусный ангидрид вместе с растворителем отвод тс в верхней части колонны и поступают в другую колонну на разделение . Подава вниз колонны вместе с ацетальдегидом избыток какогоОтв . редактор М. М. АкишинThe described continuous process for the production of acetic acid, acetic anhydride and acetic acid esters by the catalytic oxidation of acetaldehyde is as follows. A solvent (benzene ethyl acetate) is poured into a column filled with raschig rings, which is heated to the boiling point of the azeotropic mixture of solvent and water. Then acetaldehyde, a catalyst, a solvent and oxygen are supplied to the bottom of the column. From the top of the column, water vapor and the solvent are azeotropically boiling, which are condensed and separated, are continuously removed. The acetic acid and acetic anhydride formed together with the solvent are withdrawn at the top of the column and fed to another column for separation. Putting down the columns along with acetaldehyde an excess of what. editor M. M. Akishin
либо спирта, можно вместо ангидрида получать ацетат (этиловый пропиловый, бутиловый).or alcohol, instead of anhydride, you can get acetate (ethyl propyl, butyl).
Предмет изобретени Subject invention
. Способ получени уксусной кислоты, уксусного ангидрида и уксуснокислых эфиров путем непрерывного каталитического окислени ацетальдегида, отличающийс тем, что ацетальдегид вместе с катализатором пропускают в растворитель , нагретый до температуры кипени азеотропной смеси данного растворител и воды, причем вода удал етс из сферы реакции в момент ее образовани , в виде азеотропной смеси, а из остающейс жидкости обычным способом выдел ют уксусную кислоту и уксусный ангидрид.. A method of producing acetic acid, acetic anhydride and acetic acid esters by continuous catalytic oxidation of acetaldehyde, wherein acetaldehyde together with the catalyst is passed into a solvent heated to the boiling point of the azeotropic mixture of the solvent and water, and water is removed from the reaction at the time of its formation , in the form of an azeotropic mixture, and acetic acid and acetic anhydride are separated from the remaining liquid in the usual manner.
2. Прием выполнени по п. 1, отличающийс тем, что с целью получени сложных эфиров уксусной кислоты одновременно с ацетальдегидом в аппарат ввод т спирты и из продуктов реакции выдел ют обычным способом соответствующий сложный эфир уксусной кислоты.2. The use of the method according to claim 1, wherein in order to obtain acetic acid esters simultaneously with acetaldehyde, alcohols are introduced into the apparatus and the corresponding acetic acid ester is extracted from the reaction products in the usual way.
Редактор А. Я. Гельфанд 67Editor A. Ya. Gelfand 67
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU47092A SU72148A1 (en) | 1941-06-20 | 1941-06-20 | Method of producing acetic acid, acetic anhydride and acetic acid esters |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU47092A SU72148A1 (en) | 1941-06-20 | 1941-06-20 | Method of producing acetic acid, acetic anhydride and acetic acid esters |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU72148A1 true SU72148A1 (en) | 1947-11-30 |
Family
ID=48248773
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU47092A SU72148A1 (en) | 1941-06-20 | 1941-06-20 | Method of producing acetic acid, acetic anhydride and acetic acid esters |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU72148A1 (en) |
-
1941
- 1941-06-20 SU SU47092A patent/SU72148A1/en active
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