GB1061788A - Improvements in and relating to the production of vinyl esters - Google Patents
Improvements in and relating to the production of vinyl estersInfo
- Publication number
- GB1061788A GB1061788A GB3764362A GB3764362A GB1061788A GB 1061788 A GB1061788 A GB 1061788A GB 3764362 A GB3764362 A GB 3764362A GB 3764362 A GB3764362 A GB 3764362A GB 1061788 A GB1061788 A GB 1061788A
- Authority
- GB
- United Kingdom
- Prior art keywords
- reaction
- ethylene
- acid
- carboxylate
- molar concentration
- 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
- C07C69/00—Esters of carboxylic acids; Esters of carbonic or haloformic acids
- C07C69/007—Esters of unsaturated alcohols having the esterified hydroxy group bound to an acyclic carbon atom
- C07C69/01—Vinyl esters
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C67/00—Preparation of carboxylic acid esters
- C07C67/04—Preparation of carboxylic acid esters by reacting carboxylic acids or symmetrical anhydrides onto unsaturated carbon-to-carbon bonds
- C07C67/05—Preparation of carboxylic acid esters by reacting carboxylic acids or symmetrical anhydrides onto unsaturated carbon-to-carbon bonds with oxidation
- C07C67/055—Preparation of carboxylic acid esters by reacting carboxylic acids or symmetrical anhydrides onto unsaturated carbon-to-carbon bonds with oxidation in the presence of platinum group metals or their compounds
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Vinyl esters of aromatic or saturated aliphatic mono- or di-carboxylic acids are obtained by bringing a gas mixture containing 3 to 10% by volume oxygen and at least twice as much ethylene into contact with a reaction mixture containing a carboxylic acid which is liquid under the reaction conditions, palladous chloride in a molar concentration of 0.005 to 0.5, a redox system, lithium chloride in a molar concentration of 0.1 to 1.0 and at least one carboxylate which is ionized under the reaction conditions, the partial pressure of the ethylene being at least atmospheric, the water content of the liquid being at most 20% by weight and the reaction being carried out a temperature of 100 DEG to 140 DEG C. The preferred product is vinyl acetate obtained by carrying out the reaction using acetic acid as the carboxylic acid and lithium acetate as the ionized carboxylate. The redox system is preferably a cupric salt and the ethylene/oxygen-containing gas mixture may be diluted with nitrogen and/or another inert gas. It is preferred to operate the process in such a manner that an amount of acetaldehyde is formed which may be oxidized in situ or in a separate vessel to an amount of acetic acid which makes up for the quantity of acid reacted or lost.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3764362A GB1061788A (en) | 1962-10-04 | 1962-10-04 | Improvements in and relating to the production of vinyl esters |
| CA885,859A CA948648A (en) | 1962-10-04 | 1963-10-02 | Production of esters |
| ES292207A ES292207A1 (en) | 1962-10-04 | 1963-10-04 | Procedure for obtaining esters (Machine-translation by Google Translate, not legally binding) |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3764362A GB1061788A (en) | 1962-10-04 | 1962-10-04 | Improvements in and relating to the production of vinyl esters |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1061788A true GB1061788A (en) | 1967-03-15 |
Family
ID=10397935
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3764362A Expired GB1061788A (en) | 1962-10-04 | 1962-10-04 | Improvements in and relating to the production of vinyl esters |
Country Status (3)
| Country | Link |
|---|---|
| CA (1) | CA948648A (en) |
| ES (1) | ES292207A1 (en) |
| GB (1) | GB1061788A (en) |
-
1962
- 1962-10-04 GB GB3764362A patent/GB1061788A/en not_active Expired
-
1963
- 1963-10-02 CA CA885,859A patent/CA948648A/en not_active Expired
- 1963-10-04 ES ES292207A patent/ES292207A1/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| ES292207A1 (en) | 1964-01-16 |
| CA948648A (en) | 1974-06-04 |
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