GB490544A - Improvements in the manufacture of aliphatic acids - Google Patents
Improvements in the manufacture of aliphatic acidsInfo
- Publication number
- GB490544A GB490544A GB503637A GB503637A GB490544A GB 490544 A GB490544 A GB 490544A GB 503637 A GB503637 A GB 503637A GB 503637 A GB503637 A GB 503637A GB 490544 A GB490544 A GB 490544A
- Authority
- GB
- United Kingdom
- Prior art keywords
- reaction
- silver
- phosphorus
- copper
- acetic acid
- 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
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
The reaction of carbon monoxide on methyl alcohol is effected in the presence of nitrogen compounds of oxy-acids of phosphorus dispersed in the reaction mixture which is passed through a tube containing a filling of copper turnings or gauze to which a silver compound has been applied or which is plated with silver on a part of its surface, as traces of copper and silver compounds facilitate the reaction. Specification 283,989, [Class 2 (iii)], is referred to.ALSO:Acetic acid and/or methyl acetate is produced by reacting methyl alcohol with carbon monoxide in the presence of a nitrogen compound of a phosphorus oxy-acid dispersed in the reaction zone. Suitable catalysts are an ammonium or substituted ammonium (e.g. pyridinium) salt of a phosphorus oxyacid, or a partially amidated phosphorus oxyacid or ester thereof or a fully amidated phosphorus oxyacid. The catalyst may be used in the form of vapour, or, if not easily volatile may be injected as a solution for instance in water, acetic acid or methyl alcohol. The production of free acetic acid is favoured by the presence of water vapour. Methyl acetate and any dimethyl ether that may be produced may be returned to the reaction vessel. The reaction temperature may be 250-450 DEG C. and the reaction may be effected in a tube containing a filling of copper turnings or gauze to which a silver compound has been applied or which is plated with silver on a part of the surface, since traces of copper and silver compounds facilitate the reaction. Specification 283,989, [Class 2 (iii)], is referred to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB503637A GB490544A (en) | 1937-02-19 | 1937-02-19 | Improvements in the manufacture of aliphatic acids |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB503637A GB490544A (en) | 1937-02-19 | 1937-02-19 | Improvements in the manufacture of aliphatic acids |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB490544A true GB490544A (en) | 1938-08-17 |
Family
ID=9788537
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB503637A Expired GB490544A (en) | 1937-02-19 | 1937-02-19 | Improvements in the manufacture of aliphatic acids |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB490544A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2729651A (en) * | 1952-06-11 | 1956-01-03 | Basf Ag | Process for the production of aliphatic oxygen compounds by carbonylation of alcohols, ethers, and esters |
-
1937
- 1937-02-19 GB GB503637A patent/GB490544A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2729651A (en) * | 1952-06-11 | 1956-01-03 | Basf Ag | Process for the production of aliphatic oxygen compounds by carbonylation of alcohols, ethers, and esters |
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