CH243960A - Process for the production of vinyl esters. - Google Patents
Process for the production of vinyl esters.Info
- Publication number
- CH243960A CH243960A CH243960DA CH243960A CH 243960 A CH243960 A CH 243960A CH 243960D A CH243960D A CH 243960DA CH 243960 A CH243960 A CH 243960A
- Authority
- CH
- Switzerland
- Prior art keywords
- vinyl ester
- separated
- production
- vinyl esters
- gases
- Prior art date
Links
- 229920001567 vinyl ester resin Polymers 0.000 title claims description 10
- 238000000034 method Methods 0.000 title claims description 6
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 title claims description 5
- 238000004519 manufacturing process Methods 0.000 title claims description 3
- 239000003054 catalyst Substances 0.000 claims description 8
- 239000007789 gas Substances 0.000 claims description 6
- 239000002904 solvent Substances 0.000 claims description 4
- 238000005406 washing Methods 0.000 claims description 3
- HSFWRNGVRCDJHI-UHFFFAOYSA-N alpha-acetylene Natural products C#C HSFWRNGVRCDJHI-UHFFFAOYSA-N 0.000 claims description 2
- 150000001732 carboxylic acid derivatives Chemical class 0.000 claims description 2
- 238000001816 cooling Methods 0.000 claims description 2
- 125000002534 ethynyl group Chemical group [H]C#C* 0.000 claims description 2
- 239000007858 starting material Substances 0.000 claims description 2
- 230000001419 dependent effect Effects 0.000 claims 1
- 150000002148 esters Chemical class 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000007795 chemical reaction product Substances 0.000 description 1
- -1 vinyl compound Chemical class 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
Verfahren zur Herstellung von Vinylestern. Nach dem Verfahren des Hauptpatentes werden Vinylester durch Überleiten von Ace tylen und Carbonsäuredampf über erhitzte Katalysatoren hergestellt, wobei beispiels weise ein Teil der den Katalysatorraum verlassenden Gase ohne Abscheidung der Reaktionsprodukte erneut über den Kataly sator geführt wird, während man aus dem andern Teil die Vinylverbindung ausscheidet.
Es wurde nun gefunden, dass es nicht erforderlich ist, die den Katalysatorraum verlassenden Gase in zwei Teile zu teilen, sondern man kann auch so arbeiten, dass man den ganzen Gasstrom durch eine Ab scheidungsvorrichtung für den Ester führt, jedoch mit der Massgabe, dass man nur einen Teil des gebildeten Esters abscheidet und den restlichen Teil der Gase, bestehend aus den nicht umgesetzten Ausgangsstoffen und dem nicht abgeschiedenen Vinylester, wieder in den Katalysatorraum zurückführt.
Die Abscheidung der Vinylester kann ausser durch Kühlen auch durch Auswaschen mit Lösungsmitteln oder durch beide Mass nahmen zugleich erfolgen, zum Beispiel durch gekühlte Lösungsmittel.
Process for the production of vinyl esters. According to the process of the main patent, vinyl esters are produced by passing Ace tylene and carboxylic acid vapor over heated catalysts, for example part of the gases leaving the catalyst chamber without separation of the reaction products is passed over the catalyst again, while the vinyl compound is eliminated from the other part .
It has now been found that it is not necessary to divide the gases leaving the catalyst chamber into two parts, but you can also work in such a way that the entire gas stream is passed through a separation device for the ester, but with the proviso that one separates only part of the ester formed and returns the remaining part of the gases, consisting of the unconverted starting materials and the vinyl ester that has not been separated, back into the catalyst chamber.
In addition to cooling, the vinyl esters can also be separated off by washing out with solvents or by both measures at the same time, for example by using cooled solvents.
Claims (1)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH239537T | 1940-12-27 | ||
| CH243960T | 1941-09-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH243960A true CH243960A (en) | 1946-08-15 |
Family
ID=25728409
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH243960D CH243960A (en) | 1940-12-27 | 1941-09-17 | Process for the production of vinyl esters. |
Country Status (1)
| Country | Link |
|---|---|
| CH (1) | CH243960A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1106755B (en) * | 1957-10-21 | 1961-05-18 | Lonza Elek Zitaetswerke | Process for the production of vinyl esters |
| DE1134665B (en) * | 1959-03-25 | 1962-08-16 | Hoechst Ag | Process for the production of vinyl esters |
-
1941
- 1941-09-17 CH CH243960D patent/CH243960A/en unknown
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1106755B (en) * | 1957-10-21 | 1961-05-18 | Lonza Elek Zitaetswerke | Process for the production of vinyl esters |
| DE1134665B (en) * | 1959-03-25 | 1962-08-16 | Hoechst Ag | Process for the production of vinyl esters |
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