http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-108383702-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C45-78 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C47-21 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C45-78 |
| filingDate | 2017-12-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2020-12-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2020-12-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-108383702-B |
| titleOfInvention | Method for extracting citronellal from litsea cubeba head oil |
| abstract | The invention discloses a method for extracting citronellal from litsea cubeba head oil, which comprises the following steps: (1) adding litsea cubeba oil into a reaction container, controlling the temperature of a reaction system to be 5-15 ℃, and dropwise adding NaHSO 3 Performing addition reaction on the aqueous solution and aldehyde ketone in the litsea cubeba head oil to obtain a solid product insoluble in the litsea cubeba head oil; (2) separating the solid product obtained in the step (1), adding an extracting agent, then dropwise adding an acid solution, heating to 68-72 ℃ under stirring for reflux reaction, standing for layering after the reaction is finished, and washing and drying an organic layer to obtain crude citronellal oil; (3) and (3) putting the citronellal crude oil obtained in the step (2) into a rectifying tower, and rectifying in three sections to respectively obtain methyl heptenone, citronellal and citral. The method has the advantages of convenient operation, low cost, high efficiency and high product purity, and can be used for coproducing methyl heptenone and citral. |
| priorityDate | 2017-12-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 31.