PL429459A1 - Method of preparing ɛ-caprolactone - Google Patents
Method of preparing ɛ-caprolactoneInfo
- Publication number
- PL429459A1 PL429459A1 PL429459A PL42945919A PL429459A1 PL 429459 A1 PL429459 A1 PL 429459A1 PL 429459 A PL429459 A PL 429459A PL 42945919 A PL42945919 A PL 42945919A PL 429459 A1 PL429459 A1 PL 429459A1
- Authority
- PL
- Poland
- Prior art keywords
- caprolactone
- decanoic
- cyclohexane
- cyclohexanone
- peracid
- Prior art date
Links
- 238000000034 method Methods 0.000 title abstract 5
- JHIVVAPYMSGYDF-UHFFFAOYSA-N cyclohexanone Chemical compound O=C1CCCCC1 JHIVVAPYMSGYDF-UHFFFAOYSA-N 0.000 abstract 8
- VLGDSNWNOFYURG-UHFFFAOYSA-N 4-propyloxetan-2-one Chemical compound CCCC1CC(=O)O1 VLGDSNWNOFYURG-UHFFFAOYSA-N 0.000 abstract 4
- XDTMQSROBMDMFD-UHFFFAOYSA-N Cyclohexane Chemical compound C1CCCCC1 XDTMQSROBMDMFD-UHFFFAOYSA-N 0.000 abstract 4
- GHVNFZFCNZKVNT-UHFFFAOYSA-N decanoic acid Chemical compound CCCCCCCCCC(O)=O GHVNFZFCNZKVNT-UHFFFAOYSA-N 0.000 abstract 4
- 150000004965 peroxy acids Chemical class 0.000 abstract 3
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 abstract 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 abstract 2
- 238000004519 manufacturing process Methods 0.000 abstract 2
- 238000007254 oxidation reaction Methods 0.000 abstract 2
- FYGFQAJDFJYPLK-UHFFFAOYSA-N 3-butyloxiran-2-one Chemical compound CCCCC1OC1=O FYGFQAJDFJYPLK-UHFFFAOYSA-N 0.000 abstract 1
- 239000002253 acid Substances 0.000 abstract 1
- 238000006243 chemical reaction Methods 0.000 abstract 1
- 150000004967 organic peroxy acids Chemical class 0.000 abstract 1
- 230000003647 oxidation Effects 0.000 abstract 1
- 239000011541 reaction mixture Substances 0.000 abstract 1
- 239000000758 substrate Substances 0.000 abstract 1
Landscapes
- Pyrane Compounds (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Przedmiotem zgłoszenia jest sposób otrzymywania ?-kaprolaktonu, który bazuje na procesie utleniania cykloheksanonu z wykorzystaniem nadkwasu organicznego wytwarzanego na początku procesu otrzymywania ?-kaprolaktonu w reakcji nadtlenku wodoru z odpowiednim kwasem - prowadzonej w środowisku kwasu siarkowego, gdzie mieszaninę reakcyjną zawierającą cykloheksanon, cykloheksan w ilości do 0,5 dm3 cykloheksanu na 1 mol cykloheksanonu, oraz Zno do 13% mol Zno względem nadkwasu n-dekanowego łączy się w temperaturze od 20°C do 40°C z roztworem nadkwasu n-dekanowego w cykloheksanie, zawierającym od 15% do 50% wagowych nadkwasu n-dekanowego. Roztwór nadkwasu n-dekanowego w cykloheksanie wprowadzany jest z zachowaniem zakresu stosunku molowego nadkwasu n-dekanowego do cykloheksanonu wynoszącym od 0,5 : 1 do 4 : 1, a reakcję utleniania prowadzi się w zakresie temperatur od 20°C do 80°C. W efekcie prowadzenia procesu otrzymywania ?-kaprolaklonu według wynalazku uzyskuje się ?-kaprolakton o wysokiej czystości i z bardzo dobrymi wydajnościami, oraz wyodrębnić można dodatkowo substraty procesu otrzymywania ?-kaprolaktonu, które zawrócone do procesu podniosą ekonomikę technologii.The subject of the application is a method for the preparation of β-caprolactone, which is based on the oxidation of cyclohexanone with the use of organic peracid produced at the beginning of the process of β-caprolactone production in the reaction of hydrogen peroxide with an appropriate acid - conducted in a sulfuric acid environment, where the reaction mixture contains cyclohexanone, cyclohexane in the amount up to 0.5 dm3 of cyclohexane per 1 mole of cyclohexanone, and Zno up to 13 mole% of Zno in relation to n-decanoic peracid are combined at a temperature of 20 ° C to 40 ° C with a solution of n-decanoic acid in cyclohexane, containing from 15% to 50 % by weight of n-decanoic acid. The solution of n-decanoic peracid in cyclohexane is introduced within a molar ratio of n-decanoic peracid to cyclohexanone of 0.5: 1 to 4: 1, and the oxidation reaction is carried out in the temperature range from 20 ° C to 80 ° C. As a result of the process of obtaining α-caprolactone according to the invention, β-caprolactone is obtained with high purity and with very good yields, and additional substrates of the β-caprolactone production process can be separated, which will increase the economics of the technology when returned to the process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PL429459A PL239587B1 (en) | 2019-04-01 | 2019-04-01 | Method of preparing ɛ-caprolactone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PL429459A PL239587B1 (en) | 2019-04-01 | 2019-04-01 | Method of preparing ɛ-caprolactone |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| PL429459A1 true PL429459A1 (en) | 2020-10-05 |
| PL239587B1 PL239587B1 (en) | 2021-12-20 |
Family
ID=72669358
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PL429459A PL239587B1 (en) | 2019-04-01 | 2019-04-01 | Method of preparing ɛ-caprolactone |
Country Status (1)
| Country | Link |
|---|---|
| PL (1) | PL239587B1 (en) |
-
2019
- 2019-04-01 PL PL429459A patent/PL239587B1/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| PL239587B1 (en) | 2021-12-20 |
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