PL427293A1 - Method of preparing levulinic acid esters - Google Patents
Method of preparing levulinic acid estersInfo
- Publication number
- PL427293A1 PL427293A1 PL427293A PL42729318A PL427293A1 PL 427293 A1 PL427293 A1 PL 427293A1 PL 427293 A PL427293 A PL 427293A PL 42729318 A PL42729318 A PL 42729318A PL 427293 A1 PL427293 A1 PL 427293A1
- Authority
- PL
- Poland
- Prior art keywords
- acid esters
- levulinic acid
- cnh2n
- lactone
- reaction
- Prior art date
Links
- 125000005523 4-oxopentanoic acid group Chemical class 0.000 title abstract 2
- 238000000034 method Methods 0.000 title abstract 2
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 abstract 3
- 150000002596 lactones Chemical class 0.000 abstract 2
- CISWUHBXRKFIDA-UHFFFAOYSA-N 2-hydroxypent-3-enoic acid Chemical compound CC=CC(O)C(O)=O CISWUHBXRKFIDA-UHFFFAOYSA-N 0.000 abstract 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 abstract 1
- 150000001298 alcohols Chemical class 0.000 abstract 1
- 150000001335 aliphatic alkanes Chemical class 0.000 abstract 1
- 125000003118 aryl group Chemical group 0.000 abstract 1
- 239000003054 catalyst Substances 0.000 abstract 1
- 125000004122 cyclic group Chemical group 0.000 abstract 1
- 150000002148 esters Chemical class 0.000 abstract 1
- 238000000605 extraction Methods 0.000 abstract 1
- 239000002608 ionic liquid Substances 0.000 abstract 1
- 238000002360 preparation method Methods 0.000 abstract 1
- 239000011541 reaction mixture Substances 0.000 abstract 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/584—Recycling of catalysts
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Catalysts (AREA)
Abstract
Przedmiotem zgłoszenia jest sposób otrzymywania estrów kwasu lewulinowego przedstawionych wzorem ogólnym 1, gdzie R oznacza alkany liniowe i rozgałęzione CnH2n+2, cykliczne CnH2n i aromatyczne, gdzie n = 1 - 18. Przedmiotowy sposób polega na tym, że lakton ?-lakton kwasu 4-hydroksy-3-pentenowego poddaje się reakcji estryfikacji z alkoholami C1-C18 w obecności 0,001 - 10% molowych cieczy jonowych w stosunku do laktonu, przy czym reakcję prowadzi się w temperaturze 1 - 200 C w czasie 1 min - 10 godzin przy stosunku molowym alkoholu do laktonu od 1: 1 do 10: 1, następnie ester kwasu lewulinowego z mieszaniny poreakcyjnej oddziela się, przez ekstrakcję z heksanem, a katalizator zawraca się do kolejnej reakcji.The subject of the application is a method for the preparation of levulinic acid esters represented by the general formula 1, where R denotes linear and branched alkanes CnH2n + 2, cyclic CnH2n and aromatic, where n = 1-18. hydroxy-3-pentenoic acid is esterified with C1-C18 alcohols in the presence of 0.001 - 10% mol% of ionic liquids in relation to the lactone, and the reaction is carried out at a temperature of 1 - 200 C for 1 min - 10 hours with a molar ratio of alcohol to the lactone from 1: 1 to 10: 1, then the LA ester from the reaction mixture is separated by extraction with hexane and the catalyst is recycled to the next reaction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PL427293A PL238383B1 (en) | 2018-10-01 | 2018-10-01 | Method of preparing levulinic acid esters |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PL427293A PL238383B1 (en) | 2018-10-01 | 2018-10-01 | Method of preparing levulinic acid esters |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| PL427293A1 true PL427293A1 (en) | 2020-04-06 |
| PL238383B1 PL238383B1 (en) | 2021-08-16 |
Family
ID=70049444
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PL427293A PL238383B1 (en) | 2018-10-01 | 2018-10-01 | Method of preparing levulinic acid esters |
Country Status (1)
| Country | Link |
|---|---|
| PL (1) | PL238383B1 (en) |
-
2018
- 2018-10-01 PL PL427293A patent/PL238383B1/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| PL238383B1 (en) | 2021-08-16 |
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