GB319030A - Improvements in or relating to the manufacture of aliphatic esters and acids - Google Patents
Improvements in or relating to the manufacture of aliphatic esters and acidsInfo
- Publication number
- GB319030A GB319030A GB805628A GB805628A GB319030A GB 319030 A GB319030 A GB 319030A GB 805628 A GB805628 A GB 805628A GB 805628 A GB805628 A GB 805628A GB 319030 A GB319030 A GB 319030A
- Authority
- GB
- United Kingdom
- Prior art keywords
- acetic acid
- methyl acetate
- catalysts
- dimethyl ether
- acids
- 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
- C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
- C07C51/10—Preparation of carboxylic acids or their salts, halides or anhydrides by reaction with carbon monoxide
- C07C51/12—Preparation of carboxylic acids or their salts, halides or anhydrides by reaction with carbon monoxide on an oxygen-containing group in organic compounds, e.g. alcohols
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C67/00—Preparation of carboxylic acid esters
- C07C67/36—Preparation of carboxylic acid esters by reaction with carbon monoxide or formates
- C07C67/37—Preparation of carboxylic acid esters by reaction with carbon monoxide or formates by reaction of ethers with carbon monoxide
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
319,030. Dreyfus, H. March 16, 1928. Acetic acid; methyl acetate.-Acetic acid is obtained, in the free state or as methyl ester, by the reaction of dimethyl ether and carbon monoxide in the presence of alkali alcoholates or alkali formates as catalysts, or in the absence of catalysts. Temperatures of 200-450‹ C. and pressures of 50-300 atmospheres are preferably employed. If sufficient water vapour is present in the reaction mixture, acetic acid preponderates in the product, while in the presence of little or no water methyl acetate is the main product. The methyl acetate may be saponified to acetic acid by the processes described in Specifications 283,989 and 284,582, and the dimethyl ether resulting mav be returned to the main process. Propionic acid, ethyl propionate, and other aliphatic acids and esters may be prepared similarly from the corresponding ethers.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB805628A GB319030A (en) | 1928-03-16 | 1928-03-16 | Improvements in or relating to the manufacture of aliphatic esters and acids |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB805628A GB319030A (en) | 1928-03-16 | 1928-03-16 | Improvements in or relating to the manufacture of aliphatic esters and acids |
Publications (1)
Publication Number | Publication Date |
---|---|
GB319030A true GB319030A (en) | 1929-09-16 |
Family
ID=9844936
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB805628A Expired GB319030A (en) | 1928-03-16 | 1928-03-16 | Improvements in or relating to the manufacture of aliphatic esters and acids |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB319030A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2913489A (en) * | 1957-06-14 | 1959-11-17 | Shell Dev | Preparation of carboxylic acids |
-
1928
- 1928-03-16 GB GB805628A patent/GB319030A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2913489A (en) * | 1957-06-14 | 1959-11-17 | Shell Dev | Preparation of carboxylic acids |
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