http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-108034499-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D493-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C11B9-027 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C11B9-022 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C11B9-025 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C11B9-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D493-08 |
| filingDate | 2017-12-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2021-03-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2021-03-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-108034499-B |
| titleOfInvention | Method for extracting 1, 8-cineole-enriched cinnamomum camphora essential oil by taking ionic liquid as green medium |
| abstract | The invention provides a method for extracting 1, 8-cineole-enriched cinnamomum camphora essential oil by taking ionic liquid as a green medium. The invention comprises (1) crushing fresh cinnamomum camphora leaves by a crusher, and sieving the crushed cinnamomum camphora leaves by a 20-mesh sieve; weighing cinnamomum camphora leaf powder in a bottle, adding a certain amount of ionic liquid, extracting for a certain time with ultrasonic assistance, wherein the working frequency of an ultrasonic circulating extractor is 40KHz, and the output power is 500W; (2) after extraction, carrying out reduced pressure distillation to obtain an oil-water mixture, separating liquid, and obtaining an upper layer which is the cinnamomum camphora essential oil; (3) adding deionized water into a flask after reduced pressure distillation to dissolve ionic liquid, centrifuging, wherein the upper layer is a mixture of the ionic liquid and water, and the lower layer is the residual leaf residue and biomass components; concentrating the upper layer liquid to remove most of water, adding activated carbon for refluxing, filtering, concentrating the filtrate to obtain ionic liquid, and repeating the steps to realize the recycling of the ionic liquid. The method is used for extracting the cinnamomum camphora essential oil, the content of 1, 8-cineole in the essential oil is 1.5-2.0 times of that of the essential oil obtained by a steam distillation method, the extraction rate of the essential oil is high, the ionic liquid can be recycled, and the process is green, efficient and environment-friendly. |
| priorityDate | 2017-12-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 26.